GSSSB

Q1.Persons preparing electrolyte should wear

1. goggles or other face shield
2. rubber
3. rubber boots and gloves
4. all above safety devices

Correct Ans: D

Q2.During the charging of a lead acid cell

1. its voltage increases
2. it gives out energy
3. its cathode becomes dark chocolate brown in colour
4. specific gravity of \(H_2SO_4\) decreases

Correct Ans: A

Q3.A એક કામ 12 દિવસમાં પૂરું કરે અને B તેજ કામ 15 દિવસમાં પૂરું કરે છે. 4 દિવસ કામ કર્યા બાદ A કામ છોડી દે છે. બાકીનું કામ એકલો B પૂરું કરે છે. A ને મહેનતાણા પેટે 1500 રુ. મળ્યા હોય તો B ને કેટલું મહેનતાણું મળે?

1. 1500 રુ.
2. 2000 રુ.
3. 2500 રુ.
4. 3000 રુ.

Correct Ans: D

Q4.Cells are connected in series in order to

1. increase the voltage rating
2. increase the current rating
3. increase the life of the cells 
4. none of the above

Correct Ans: A

Q5.વિશાળ વિદ્યા સંકુલો સાથે અનેક શાળાઓ અને કોલેજોનું નિર્માણ કરનારી સંસ્થા અમદાવાદ એજયુકેશન સોસાયટી ના સ્થાપક નું નામ જણાવો.

1. શ્રેણિકભાઈ અંબાલાલ
2. વિક્રમભાઈ સારાભાઈ
3. ચીનુભાઈ બેરોનેટ
4. કસ્તુરભાઈ લાલભાઈ

Correct Ans: D

Q6.The specific gravity of electrolyte is measured by

1. manometer
2. a mechanical gauge
3. hydrometer
4. psychometer

Correct Ans: C

Q7.The effect of Sulfation is that the internal resistance

1. increases
2. decreases
3. remains same
4. none of the above

Correct Ans: A

Q8.જંગલ' શબ્દનો સાચો વિરુદ્ધાર્થી શબ્દ લાખો.

1. ચલાયમાન
2. સ્થાવર
3. મિલકત
4. પુંજી

Correct Ans:

Q9.Internal resistance of a cell is due to

1. resistance of electrolyte
2. electrode resistance
3. surface contact resistance between electrode and electrolyte
4. all above

Correct Ans: D

Q10.The period ____________ over, the teacher left the class. (have + be)

1. has been
2. had being
3. had been
4. having been

Correct Ans: D

Q11.A magnetic field exists around

1. iron
2. copper
3. aluminium
4. moving charges

Correct Ans: D

Q12.Magnetism of a magnet can be destroyed by

1. heating
2. hammering
3. by inductive action of another magnet
4. by all above methods

Correct Ans: D

Q13.ઇલેક્ટ્રિક જનરેટર ક્યાં સિંધાત પર કાર્ય કરે છે?

1. વિદ્યુત ઉર્જાનું યાંત્રિક ઉર્જામાં રૂપાંતર કરે છે
2. વિદ્યુત ઉર્જાનું ઉષ્મા ઉર્જામાં રૂપાંતર કરે છે
3. યાંત્રિક ઉર્જાનું વિદ્યુત ઉર્જામાં રૂપાંતર કરે છે
4. વિદ્યુત ઉર્જાનું પ્રકાશ ઉર્જામાં રૂપાંતર કરે છે

Correct Ans: C

Q14.Superposition theorem can be applied only to circuits having

1. resistive elements
2. passive elements
3. nonlinear elements
4. linear bilateral elements

Correct Ans: D

Q15.વદન સુધાકરને રહું નિહાળી' - અલંકાર ઓળખાવો.

1. રૂપક
2. અનન્વય
3. ઉપમા
4. ઉત્પ્રેક્ષા

Correct Ans:

Q16.Hysteresis loss least depends on

1. volume of material
2. frequency
3. steinmetz coefficient of material
4. ambient temperature

Correct Ans: D

Q17.An open coil has

1. zero resistance and inductance
2. infinite resistance and zero inductance
3. infinite resistance and normal inductance
4. zero resistance and high inductance

Correct Ans: B

Q18.ગાંધીનગર શહેર ના સ્થાપક (આર્કીટેક) કોણ હતા?

1. બી.વી.દોશી
2. એચ.કે.મેવાડા
3. હિરેન પટેલ
4. યતીન પંડ્યા

Correct Ans: B

Q19.Which of the following circuit elements will oppose the change in circuit current ?

1. Capacitance
2. Inductance
3. Resistance
4. All of the above

Correct Ans: B

Q20.760 વ્યક્તિ ના સમૂહ માં 510 હિન્દી બોલી શકે છે. 360 અંગ્રેજી બોલી શકે છે. તો કેટલા લોકો ફક્ત અંગ્રેજી બોલી શકે છે?

1. 250
2. 350
3. 470
4. 300

Correct Ans: A

Q21.Tesla is a unit of

1. field strength
2. inductance
3. flux density
4. flux

Correct Ans: C

Q22.Unit for quantity of electricity is

1. Ampere hour
2. watt
3. joule
4. coulomb

Correct Ans: D

Q23.પૂર્વપદ અને ઉત્તરપદ વિભક્તિ સંબંધથી જોડાયેલા હોય ત્યારે તે પદોમાં કયો સમાસ થાય છે?

1. તત્પુરુષ
2. બહુવ્રીહી
3. દ્રીગુ
4. કર્મધારય

Correct Ans:

Q24.Kirchhoff’s current law is applicable only to

1. Electric circuit
2. Electronic Circuit
3. Junction in a network
4. Closed loops in a network

Correct Ans: C

Q25.Give synonym of: 'Anger'

1. Angry
2. Wreth
3. Wrath
4. Rag

Correct Ans: C

Q26.The unit of magnetic flux is

1. henry
2. weber
3. ampere turn/weber
4. ampere/meter

Correct Ans: B

Q27.Hard steel is suitable for making permanent magnets because

1. it has good residual magnetism
2. its hysteresis loop has large area
3. its mechanical strength is high
4. its mechanical strength is low

Correct Ans: A

Q28.આપેલ સંખ્યાસમૂહ જેવો સંખ્યાસમૂહ આપેલ વિકલ્પો માંથી શોધો.

223, 324, 425

1. 225, 326, 437
2. 451, 552, 636
3. 554, 655, 756
4. 623, 723, 823

Correct Ans: C

Q29.Air core coils are practically free from

1. hysteresis losses
2. eddy current losses
3. both (A) and (B)
4. none of the above

Correct Ans: C

Q30.'સિંહાસન' સમાસ નો પ્રકાર જણાવો.

1. તત્પુરુષ
2. ઉપપદ
3. મધ્યમપદલોપી
4. દ્વિગુ

Correct Ans:

Q31.Which is the most superior dielectric out of the following ?

1. Air
2. Glass
3. Bakelite
4. Paper

Correct Ans: C

Q32.In the left hand rule, forefinger always represents

1. voltage
2. current
3. magnetic field
4. direction of force on the conductor

Correct Ans: C

Q33.કમ્પ્યુટરની સ્ક્રીન પર આવેલા નાના ટપકા ને ક્યા નામથી ઓલખવામા આવે છે?

1. Cell
2. Cursor
3. Pixel
4. Image

Correct Ans: C

Q34.Kirchhoffs current law states that

1. net current flow at the junction is positive
2. algebraic sum of the currents meeting at the junction is zero
3. no current can leave the junction without some current entering it
4. total sum of currents meeting at the junction is zero

Correct Ans: B

Q35.ગુજરાત ની સૌપ્રથમ વિધાનસભા અધ્યક્ષશ્રી નુ નામ જનાવો.

1. મનુભાઇ પાલ્ખીવલા
2. કલ્યાંજી મેહતા
3. કુંદનલાલ ધોળકિયા
4. રાઘવજી લેઉઆ

Correct Ans: B

Q36.A capacitor is generally a

1. bilateral and active component
2. active, passive, linear and nonlinear component
3. linear and bilateral component
4. nonlinear and active component

Correct Ans: C

Q37.Laminated cores, in electrical machines are used to reduce

1. copper loss
2. eddy current loss
3. hysteresis loss
4. all of the above

Correct Ans: B

Q38.સાહિત્ય અકાદમી, દિલ્હી પુરુસ્ક્રુત કૃતિ "કુળ કથાઓ" લેખક નું નામ જણાવો.

1. રઘુવીર ચૌધરી
2. ન્હાનાલાલ
3. હરીન્દ્ર દવે
4. સ્વામી આનંદ

Correct Ans: D

Q39.The direction of induced e.m.f. can be found by

1. Laplace's law
2. Lenz's law
3. Fleming's right hand rule
4. Kirchhoffs voltage law

Correct Ans: B

Q40.Opposite gender of 'monk' is

1. friar
2. monkey
3. monky
4. nun

Correct Ans: D

Q41.A crack in the magnetic path of an inductor will result in

1. unchanged inductance
2. increased inductance
3. zero inductance
4. reduced inductance

Correct Ans: D

Q42.The storage battery generally used in electric power station is

1. nickel cadmium battery
2. Zinc Carbon battery
3. Lead acid battery
4. none of the above

Correct Ans: C

Q43.એક વ્યક્તિ સ્કૂટર પર 1000 મીટર રેખીય અંતર 80 સેકન્ડ માં કાપે છે. તો તેની ઝડપ કેટલી કહેવાય?

1. 54 કી.મી./ કલાક
2. 36 કી.મી./ કલાક
3. 12.5 કી.મી./ કલાક
4. 45 કી.મી./ કલાક

Correct Ans: D

Q44.Electrolyte used in an Edison cell is

1. \(NaOH\)
2. \(KOH\)
3. \(HCI\)
4. \(HN O_3 \)

Correct Ans: B

Q45.સાહિત્ય અકાદમી, દિલ્હી પુરુસ્ક્રુત કૃતિ "ઉપરવાસ કથયાત્રી" લેખક નું નામ જણાવો.

1. ચં.ચિ.મહેતા
2. સ્વામી આનંદ
3. રઘુવીર ચૌધરી
4. જગદીશ જોશી

Correct Ans: C

Q46.Internal short circuits are caused by

1. breakdown of the more seperators
2. excess accumulation of sediment at the bottom of the cell
3. both (a) and (b)
4. none of the above

Correct Ans: C

Q47.Batteries are charged by

1. rectifiers
2. engine generator sets
3. motor generator sets
4. any one of the above methods

Correct Ans: D

Q48.ગુજરાત રાજ્યના રાજકોટ જિલ્લાની નીચે દર્શાવેલ જિલ્લાઓ પૈકી કયા જિલ્લાની સ્પર્શતી નથી?

1. દેવભૂમિ દ્વારકા
2. મોરબી
3. જુનાગઢ
4. જામનગર

Correct Ans: A

Q49.Electric pressure is also called

1. Resistance
2. Power
3. Voltage
4. Energy

Correct Ans: C

Q50.તમે એકલા જઈ રહ્યા હો અને ચક્રવાત શરૂ થાય તો તમે કયું પગલું ભરશો?

1. રસ્તાની એક બાજુએ ઉભા રહીને રાહ જોવી
2. ઝડપથી કોઈ ઘર જેવી જગ્યા ને પ્રાથમિકતા આપીને સુરક્ષિત સ્થળે પહોંચી જવું, મોટા વીજળીના થાંભલા કે ઝાડ પાસે ઊભા ન રહેવું
3. એક ઝાડ નીચે આશરો લેવો
4. પવનની વિરુદ્ધ દિશામાં દોડી જવું

Correct Ans: B

Q51.Conductance is reciprocal of

1. Resistance
2. Inductance
3. Reluctance
4. Capacitance

Correct Ans: A

Q52.Which is the best conductor of electricity ?

1. Iron
2. Silver
3. Copper
4. Carbon

Correct Ans: B

Q53."ઓખાહરણ", "કુંવરબાઈનું મામેરુ" , "નળાખ્યાન" જેવા આખ્યાન આપનાર આખ્યાનકાર કોણ છે?

1. દયારામ
2. દલપતરામ
3. નરસિંહ મહેતા
4. પ્રેમાનંદ

Correct Ans: D

Q54.A field of force can exist only between

1. two molecules
2. two ions
3. two atoms
4. two metal particles

Correct Ans: B

Q55.Find the correct spelling of the word for 'A person who eats human flesh'

1. Canible
2. Cannibal
3. Cannibale
4. Cennible

Correct Ans: B

Q62.Out of the following which is an insulating material ?

1. Copper
2. Gold
3. Silver
4. Paper

Correct Ans: D

Q63.નીચે દર્શાવેલ જોડકા યોગ્ય રીતે જોડો:

(a) લોલકના નિયમો
(b) પ્રોટોન ટ્રાન્સફર થિયરી
(c) રુધિર જૂથ ના શોધક
(d) ક્ષ-કિરણ ના શોધક


(1) રોંટજન
(2) ગેલેલીયો
(3) લોરી બ્રોનસ્ટેડ
(4) કાર્લ લેન્ડસ્ટીનાર

1. a-4,b-2,c-3,d-1
2. a-2,b-3,c-4,d-1
3. a-1,b-4,c-3,d-2
4. a-3,b-4,c-2,d-1

Correct Ans: B

Q64.An instrument which detects electric current is known as

1. voltmeter
2. rheostat
3. wattmeter
4. galvanometer

Correct Ans: D

Q65.એક વસ્તુ વેચતા મૂળકિંમત ના 7/8 ગણી રકમ ઉપજે છે. તો કેટલા ટકા ખોટ જાય?

1. 8
2. 10
3. 12.5
4. 15

Correct Ans: C

Q66.Bulbs in street lighting are all connected in

1. parallel
2. series
3. series-parallel
4. end to end

Correct Ans: A

Q67.One newton meter is same as

1. one watt
2. one joule
3. five joules
4. one joule second

Correct Ans: B

Q68.આચાર્ય હેમચંદ્રાચાર્ય નું સાંસારિક નામ જણાવો.

1. ચાંગદેવ
2. ઋષભદેવ
3. જિનદેવ
4. હેમદેવ

Correct Ans: A

Q69.Which of the following is not a vector?

1. Linear momentum
2. Angular Momentum
3. Electric Field
4. Electric potential

Correct Ans: D

Q70.Antonym of: 'Famous'

1. Nonfamous
2. Well-known
3. Obscure
4. Unfamous

Correct Ans: C

Q71.Brushes of D.C. machines are made of

1. carbon
2. soft copper
3. hard copper
4. all of the above

Correct Ans: A

Q72.The purpose of providing dummy coils in a generator is to

1. Reduce eddy current losses
2. Enhance flux density
3. Amplify voltage
4. Provide mechanical balance for the rotor

Correct Ans: D

Q73.સરદાર વલ્લભભાઈ પટેલે આદરેલ બારડોલી સત્યાગ્રહ કયા વર્ષમાં કરવામાં આવ્યો હતો ?

1. ઈ.સ. 1929
2. ઈ.સ. 1926
3. ઈ.સ. 1928
4. ઈ.સ. 1927

Correct Ans: C

Q74.Which of the following does not change in a transformer ?

1. Current
2. Voltage
3. Frequency
4. All of the above

Correct Ans: C

Q75.'સાકાર' શબ્દનો સાચો વિરુદ્ધાર્થી શબ્દ લખો.

1. નિર્ગુણ
2. નિરાકાર
3. આકારરહિત
4. પરિપૂર્ણ

Correct Ans:

Q76.A common method of cooling a power transformer is

1. natural air cooling
2. air blast cooling
3. oil cooling
4. any of the above

Correct Ans: C

Q77.The frame of an induction motor is usually made of

1. silicon steel
2. cast iron
3. aluminium
4. bronze

Correct Ans: B

Q78.ગૌરવવંતા ગુજરાતી ચંદુલાલ માધવલાલ ત્રિવેદીને ૧૯૪૬-૪૭ દરમિયાન કયા રાજ્યના ગવર્નર તરીકે નિમવામાં આવ્યા હતા?

1. કર્ણાટક
2. આંધ્ર
3. ઓરિસ્સા
4. તમિલનાડુ

Correct Ans: C

Q79.The maximum torque in an induction motor depends on

1. frequency
2. rotor inductive reactance
3. square of supply voltage
4. all of the above

Correct Ans: D

Q80.૧ નેનોમીટર બરાબર કેટલા મીટર ?

1. \(10^{-9}\)
2. \(10^{-8}\)
3. \(10^{-7}\)
4. \(10^{9}\)

Correct Ans: A

Q81.The rotor of an induction motor runs at

1. synchronous speed
2. below synchronous speed
3. above synchronous speed
4. any of the above

Correct Ans: B

Q82.In a mercury arc rectifier_________flow from anode to cathode.

1. ions
2. electrons
3. ions and electrons
4. any of the above

Correct Ans: A

Q83.'સદાવ્રત' શબ્દનો સાચો સમાનાર્થી શબ્દ લખો.

1. કોઠાર
2. અન્નક્ષેત્ર
3. ગોદામ
4. ધર્મશાળા

Correct Ans:

Q84.India's first nuclear power plant was installed at

1. Tarapore
2. Kota
3. Kalpakkam
4. none of the above

Correct Ans: A

Q85.Past Participle form of: 'to sow'

1. sew
2. sewn
3. sown
4. none

Correct Ans: C

Q86.High load factor indicates

1. cost of generation per unit power is increased
2. total plant capacity is utilised for most of the time
3. total plant capacity is not properly utilised for most of the time
4. none of the above

Correct Ans: B

Q87.Iron losses in a D.C. machine are independent of variations in

1. speed
2. load
3. voltage
4. speed and voltage

Correct Ans: B

Q88.હર્ષદ માતાનું પવિત્ર યાત્રાધામ મિયાણી કયા જિલ્લામાં આવેલું છે?

1. ગીર સોમનાથ
2. જુનાગઢ
3. ભાવનગર
4. પોરબંદર

Correct Ans: D

Q89.The armature core of a D.C. generator is usually made of

1. silicon steel
2. copper
3. nonferrous material
4. cast iron

Correct Ans: A

Q90.'અધૂરો ઘડો છલકાય ઘણો' કહેવતનો અર્થ કઈ કહેવત દર્શાવે છે, તે વિકલ્પમાંથી દર્શાવો.

1. પાકે ઘડે કાંઠા ન ચડે
2. ખાલી ચણો વાગે ઘણો
3. નાચવું નહીંને આંગણું વાંકું
4. મોરનાં ઈંડા ચીતરવા ન પડે

Correct Ans:

Q91.A DC, generator works on the principle of

1. Lenz's law
2. Ohm's law
3. Faraday's law of electromagnetic induction
4. None of the above

Correct Ans: C

Q92.A transformer transforms

1. Voltage
2. current
3. power
4. frequency

Correct Ans: C

Q93.શ્વેત પત્ર એટલે -

1. લોકસભામાં વિધાયક દ્વારા રજૂ કરાયેલ દસ્તાવેજ
2. ઉંચી જાતનો કાગળ
3. રાષ્ટ્રીય બાબતે પ્રગટ કરેલો અગત્યનો દસ્તાવેજ
4. એક પણ નહીં

Correct Ans: C

Q94.A transformer oil must be free from

1. sludge
2. odour
3. gases
4. moisture

Correct Ans: D

Q95.તાજેતરમાં જૂન 2016 માં રમાયેલ ઓસ્ટ્રેલિયન ઓપન બેડમિન્ટન ટુર્નામેન્ટની ફાયનલ મેચમાં વિજેતા બનેલ ભારતીય ખેલાડી સાયના નેહવાલ સામે પરાજિત થયેલ ખેલાડીનું નામ જણાવો.

1. જો લેઈન
2. સૂન યુ
3. રોન્ટોક ઈંટાનો
4. વાંગ યીહાન

Correct Ans: B

Q96.An induction motor is

1. Self starting with zero torque
2. Self starting with high torque
3. Self starting with low torque
4. Non self starting

Correct Ans: C

Q97.Lubricant used for ball bearing is usually

1. graphite
2. grease
3. mineral oil
4. molasses

Correct Ans: B

Q98.મને બોલાવે ઓ ગિરિવર તણા મૌન શિખરો - છંદ ઓળખાવો.

1. પૃથ્વી
2. શિખરિણી
3. મંદાક્રાન્તા
4. અનુષ્ટુપ

Correct Ans:

Q99.Which of the following AC motors is unsually used in large motor generator?

1. synchronous motor
2. Squirrel cage induction motor
3. slip ring induction motor
4. Any of the above

Correct Ans: A

Q100.Verb form of 'poor' is

1. to poorise
2. poorly
3. to impoverish
4. poverty

Correct Ans: C

Q101.The commercial sources of energy are

1. fossil fuels, water and radioactive substances.
2. solar, wind and biomass.
3. wood, animal wastes and agricultural wastes.
4. none of the above.

Correct Ans: A

Q102.Load factor of a power station is generally

1. equal to unity
2. less than unity
3. more than unity
4. equal to zero

Correct Ans: B

Q103.મ્યુનિસિપલ કમિશનરની નિમણૂક કોણ કરે છે?

1. રાજ્ય સરકાર
2. કેન્દ્ર સરકાર
3. રાષ્ટ્રપતિ
4. રાજ્યપાલ

Correct Ans: A

Q104.Magnetic field in a D.C. generator is produced by

1. Electromagnets
2. permanent magnets
3. both (A) and (B)
4. none of the above

Correct Ans: C

Q105.સૃષ્ટિ' શબ્દની સંધિ છૂટી પાડો.

1. સૃજ્ + તિ
2. સુજુ + તિ
3. સૂય + તિ
4. સૃજ્ + ષ્ટિ

Correct Ans:

Q106.A D.C. generator can be considered as

1. rectifier
2. primemover
3. rotating amplifier
4. power pump

Correct Ans: C

Q107.In a transformer the energy is conveyed from primary to secondary

1. Through cooling coil
2. Through air
3. By the flux
4. None of the above

Correct Ans: C

Q108.MS Word માં સમાનાર્થી શબ્દ શોધવા માટે કઇ સુવિધાનો ઉપયોગ કરવામાં આવે છે?

1. Spelling and Grammar
2. Research
3. Translate
4. Thesaurus

Correct Ans: D

Q109.Material used for construction of transformer core is usually

1. wood
2. copper
3. aluminium
4. silicon steel

Correct Ans: D

Q110.શ્રેણી પૂર્ણ કરો.

0, 6, 24, 60, _________

1. 72
2. 80
3. 120
4. 144

Correct Ans: C

Q111.The crawling in the induction motor is caused by

1. low voltage supply
2. high loads
3. harmonics developed in the motor
4. improper design of the machine

Correct Ans: C

Q112.Size of a high speed motor as compared to low speed motor for the same H.P. will be

1. bigger
2. smaller
3. same
4. any of the above

Correct Ans: B

Q113.રૂઢિપ્રયોગ નો અર્થ શોધીને લખો:

માથે લેવું

1. ગુનો કબુલ કરવો
2. માથા પર વજન ઉપાડવું
3. જવાબદારી સંભાળવી
4. જવાબદારીમાંથી છૂટી જવું

Correct Ans:

Q114.Which of the following are the applications of D.C. system?

1. Battery charging work
2. Arc welding
3. Electrolytic and electrochemical processes
4. Arc lamps for search lights

Correct Ans: C

Q115.Arrange the following words in 'Alphabetical order'.

(1) Popular (2) Population (3) Populous (4) Popularity

1. (3), (1), (4), (2)
2. (3), (4), (2), (1)
3. (2), (1), (4), (3)
4. (1), (4), (2), (3)

Correct Ans: D

Q116.The ignited or auxiliary anode in mercury arc rectifier is made of

1. graphite
2. boron carbide
3. aluminium
4. copper

Correct Ans: B

Q117.In fuel cell, the _________energy is converted into electrical energy.

1. mechanical
2. chemical
3. heat
4. Sound

Correct Ans: B

Q118.રીઝર્વ બેંક ઓફ ઇન્ડિયા ના જાહેરનામા પ્રમાણે પ્રથમ તબક્કામાં નવેમ્બર 2016 સુધીમાં, એક અઠવાડિયામાં બેંકના કાઉન્ટર ઉપરથી, મહત્તમ કેટલી રકમની ઉપાડ એક બેંક ખાતામાંથી કોઈપણ વ્યક્તિ કરી શકશે?

1. રૂ. 20000/-
2. રૂ. 10000/-
3. રૂ. 2000/-
4. રૂ. 4000/-

Correct Ans: A

Q119.Level of electrolyte in a cell should be _____the level of plates.

1. below
2. equal
3. above
4. none of the above

Correct Ans: C

Q120.નીચે આપેલ વાક્યમાંથી 'નિપાત' શોધીને લખો.

બધાય દેવોને પોતાના અલગ અલગ વાહન છે.

1. ને
2. ના
3. છે
4. ય

Correct Ans:

Q121.The r.m.s value and mean value is the same in the case of

1. triangle wave
2. sine wave
3. square wave
4. half wave rectified sine wave

Correct Ans: C

Q122.In a purely inductive circuit

1. actual power is zero
2. reactive power is zero
3. apparent power is zero
4. none of the above is zero

Correct Ans: A

Q123.કલ્યાણપુર તાલુકો ગુજરાત રાજ્યના કયા જિલ્લામાં આવેલ છે?

1. ભાવનગર
2. ખેડા
3. દેવભૂમિ દ્વારકા
4. જામનગર

Correct Ans: C

Q124.The power is measured in terms of decibles in case of

1. electronic equipment
2. transformers
3. current transformers
4. auto transformers

Correct Ans: A

Q125.પાણીમાંથી ક્ષારોને દૂર કરવા માટે વપરાતી પદ્ધતિનું નામ શું છે?

1. રિવર્સ ઓસ્મોસીસ
2. ફિલ્ટરેશન (ગાળણ)
3. સોફ્નીગ
4. ઉપર માંથી એક પણ નહીં

Correct Ans: A

Q126.The resistance of armature winding depends on

1. length of conductor
2. cross sectional area of the conductor
3. number of conductors
4. all of the above

Correct Ans: D

Q127.The current flow through electrolyte is due to the movement of

1. Ions
2. Holes
3. Electrons
4. None of the above

Correct Ans: A

Q128.નીચે આપેલ વાક્યમાંથી 'નિપાત' શોધીને લખો.

આપણી ધ્રાણેન્દ્રિય સાબદી રહી છે ખરી ?

1. ય
2. રહી
3. ખરી
4. છે

Correct Ans:

Q129.The period of a wave is

1. The same as frequency
2. Time required to complete one cycle
3. Expressed in amperes
4. None of the above

Correct Ans: B

Q130.Give the Noun form of: To bear

1. bearity
2. bearable
3. bier
4. born

Correct Ans: C

Q131.In any A.C. circuit always

1. apparent power is more than actual power
2. reactive power is more than apparent power
3. actual power is more than reactive power
4. reactive power is more than actual power

Correct Ans: A

Q132.Which of the following coil will have large resonant frequency?

1. A coil with large resistance
2. A coil with low resistance
3. A coil with large distributed capacitance
4. A coil with low distributed capacitance

Correct Ans: C

Q133.ગુજરાત સરકારના સિંચાઈ વિભાગ દ્વારા "ઉદ્વહન સિંચાઈ યોજનાઓ" ખાસ કરીને કયા જિલ્લાના સિંચાઈથી વંચિત વિસ્તારના લોકોને લાભ આપવા શરૂ કરાયેલ છે?

1. દાહોદ જિલ્લો
2. તાપી જિલ્લો
3. નવસારી જિલ્લો
4. વડોદરા જિલ્લો

Correct Ans: A

Q134.Laminations of core are generally made of

1. case iron
2. carbon
3. silicon steel
4. stainless steel

Correct Ans: C

Q135.સાચી જોડણી દર્શાવો.

1. વકૃતા
2. વકતૃત્ત્વ
3. વકતૃત
4. વક્રુત્વ

Correct Ans:

Q136.The body of Edison cell is made of

1. bakelite
2. rubber
3. nickel plated steel
4. aluminum

Correct Ans: C

Q137.Inductance affects the direct current flow

1. only at the time of turning off
2. only at the time of turning on
3. only at the time of turning on and off
4. at all the time of operation

Correct Ans: C

Q138.રાજ્ય નાણાપંચની રચના પાછળનો મુખ્ય ઉદ્દેશ શું છે?

1. રાજ્ય સરકાર અને પાલિકાઓ - પંચાયતો વચ્ચેનો નાણાકીય અસંતુલન નિવારવું
2. પંચાયતો અને પાલિકાઓને નાણાકીય રીતે સક્ષમ બનાવવી
3. ઉપરોક્ત બંને
4. ઉપરના બેમાંથી એકેય નહિ

Correct Ans: C

Q139.The power factor of electric bulb is ?

1. unity
2. zero
3. lagging
4. leading

Correct Ans: A

Q140.\(160^\circ \) ના પુરકકોણ ના કોટિકોણ નું માપ શોધો.

1. \(20^\circ \)
2. \(70^\circ \)
3. \(40^\circ \)
4. \(90^\circ \)

Correct Ans: B

Q141.The power factor of a D.C. circuit is always

1. less than unity
2. unity
3. greater than unity
4. zero

Correct Ans: B

Q142.The bearings used to support the rotor shafts are generally

1. ball bearings
2. bush bearings
3. magnetic bearings
4. needle bearings

Correct Ans: A

Q143.સાચી જોડણી દર્શાવો.

1. કારકિર્દી
2. કારકીર્દી
3. કારકિર્દિ
4. કારર્કીદિ

Correct Ans:

Q144.The active materials of a nickel-iron battery are 

1. nickel hydroxide
2. powdered iron and its oxide
3. 21% solution of KOH
4. all of the above

Correct Ans: D

Q145.Give a single word for:

'A place from where the astronomical phenomena is observed. '

1. Mortuary
2. Brewery
3. Asylum
4. Observatory

Correct Ans: D

Q146.When the lead-acid cell is fully charged, the electrolyte assumes _______ appearance

1. dull
2. reddish
3. bright
4. milky

Correct Ans: D

Q147.Over charging

1. produces excessive gassing
2. loosens the active material
3. increases the temperature resulting in buckling of plates
4. all above

Correct Ans: D

Q148.જુનાગઢમાં સ્વતંત્રતા સમયે કયા વંશનો શાસન હતું ?

1. બાબી વંશ
2. ગોહિલ વંશ
3. જાડેજા વંશ
4. ગાયકવાડ વંશ

Correct Ans: A

Q149.On overcharging a battery

1. it will bring about chemical change in active materials
2. it will increase the capacity of the battery
3. it will raise the specific gravity of the electrolyte
4. none of the above will occur

Correct Ans: D

Q150.નીચે આપેલ વાક્યમાંથી કૃદંત શોધી તેનો પ્રકાર લખો.

ટાઈમ ટેબલ બનાવનાર દરેકને મારી સૂ ચના છે.

1. ભૂતકૃદંત
2. આજ્ઞાર્થકૃદંત
3. ભવિષ્યકૃદંત
4. હેત્વર્થકૃદંત

Correct Ans:

Q1.In an A.C. circuit, the voltage across R, L and C are 30 V, 60 V and 20 V respectively. The applied voltage is :

1. 70 V
2. 50 V
3. 60 V
4. 100 V

Correct Ans: B

Q2.Leakage fluxes in a transformer may be minimized by :

1. Avoiding overloads
2. Keeping magnetizing current minimum
3. Reducing the reluctance of the iron core to minimum
4. Sectionalizing and interleaving the primary and secondary windings

Correct Ans: D

Q3.ગુજરાતના પ્રથમ મુખ્યપ્રધાન કોણ હતા?

1. સુરેશ મેહતા
2. છબીલ દાસ
3. બળવંતરાય મેહતા
4. જીવરાજ મેહતા

Correct Ans: D

Q4.Which of the following will happen if a voltmeter is connected like an ammeter in series to the load ?

1. There will be almost no current in the circuit
2. The meter will burn.
3. The measurement will be too high.
4. A very high current will flow.

Correct Ans: A

Q5.એક માળી પાસે નિશ્ચિત સંખ્યા માં ગુલાબ ના ફૂલ છે. તેમાંથી તે દરેક માં 9 ગુલાબ બાંધી ને કેટલાક હાર બનાવે છે. જો તેણે 10 હાર ઓછા બનાવ્યા હોત તો, દરેક માં 6 ગુલાબ વધુ બંધાત. તેણે કેટલા હાર બનાવ્યા હશે?

1. 25
2. 15
3. 20
4. 22

Correct Ans: A

Q6.Which of the following materials is used for the manufacture of transformer?

1. Cast iron
2. Cast steel
3. Cold rolled grain oriented steel
4. Hot rolled grain oriented steel

Correct Ans: C

Q7.The terminal voltage of a D.C. shunt generator drops on load because of all of the following except :

1. Armature reaction
2. Armature resistance drop
3. Commutation
4. Field weakening due to armature reaction and armature resistance drop

Correct Ans: C

Q8."હૈયું જાણે હિમાલય" માં કયો અલંકાર છે?

1. રુપક
2. ઉત્પ્રેક્ષ
3. સ્લેષ
4. સજીવારોપણ

Correct Ans: B

Q9.Reactance relays are employed for phase faults in :

1. Short lines
2. Medium lines
3. Long lines
4. Any line

Correct Ans: A

Q10.Give a single word for:

'A place where dead bodies are kept before burial or cremation.'

1. Arsenal
2. Creche
3. Asylum
4. A Mortury

Correct Ans: D

Q11.Which of the following is provided to protect the cable from moisture ingress, gases and other damaging liquids?

1. Metallic sheath
2. Armouring
3. Bedding
4. Serving

Correct Ans: A

Q12.The roots of the characteristic equations of several systems are given below Which system is unstable?

1. \(-1, -2\)
2. \( (-1 + j), (-1 - j)\)
3. \( 2, -1, -3\)
4. \( (-2 + 3j), (-2 - 3j), -2\)

Correct Ans: C

Q13.સાદી બેટરી ની શોધ સૌપ્રથમ કોને કરી હતી?

1. ફેરડે
2. ઓહ્મ
3. વોલ્ટા
4. આલ્વા એડિસન

Correct Ans: C

Q14.The frequency of carrier in the carrier-current pilot scheme is :.

1. 1 kHz to 10 kHz
2. 25 kHz to 50 kHz
3. 10 kHz to 25 kHz
4. 50 kHz to 500 kHz

Correct Ans: D

Q15.જે છંદની પંક્તિમાં નવ અક્ષર લઘુનાં અને ગુરુનાં જોવા મળે તે કયો છંદ ગણાય?

1. પૃથ્વી
2. મંદાક્રાન્તા
3. સવૈયા
4. શિખરિણી

Correct Ans: D

Q16.For the protection of parallel feeders fed from one end, the relays required are

1. Non-directional relays at the source end and directional relays at the load end
2. Non-directional relays at the source end and load end
3. Non-directional relays at the load end and directional relays at the source end
4. Directional relays at the source end and load end

Correct Ans: A

Q17.At series resonance

1. Circuit impedance is very large
2. Circuit current is minimum
3. Voltage across L or C is zero
4. Circuit power factor is unity

Correct Ans: D

Q18.\(\sqrt{3} \) અને \(\sqrt{27 } \) નો ગુણોત્તર મધ્યક = \(_{--------} \)

1. \( 9 \)
2. \( 3 \)
3. \(\sqrt{3} \)
4. \( 1 \)

Correct Ans: B

Q19.100% string efficiency means :

1. Self capacitance is zero
2. Self capacitance is maximum
3. Shunt capacitance is zero
4. Shunt capacitance is maximum

Correct Ans: C

Q20.ગુજરાતનુ વેરાવળ બંદર કયા ઉધ્યોગ માટે વિકાસ પામ્યુ છે?

1. શીપ બ્રેકિંગ
2. કેમીકલ પોર્ટ
3. મત્સ્ય ઉધ્યોગ
4. ટેક્સ્ટાઇલ ઇંડ્સ્ટ્રી

Correct Ans: C

Q21.A bulb of 300 W, 120 V rating when connected to a 120 V, 50 Hz supply will draw a current of

1. 2.5 A
2. 3A
3. 10A
4. 5A

Correct Ans: A

Q22.If the safety factor is doubled, the sag of the line will

1. Decrease
2. Remain constant
3. Increase
4. Become zero

Correct Ans: C

Q23.નાટક ભજવવું' રુઢિપ્રયોગનો અર્થ દર્શાવો.

1. સ્ટેજ પર નાટક ભજવવું
2. જડ બની જવું
3. નાટકમાં ભાગ લેવો.
4. હકીકત છુપાવવા ઢોંગી રજૂઆત કરવી

Correct Ans: D

Q24.The purpose of providing dummy coils in a generator is to

1. Enhance flux density
2. Amplify the voltage
3. Provide mechanical balance to the rotor
4. Reduce eddy currents

Correct Ans: C

Q25.Put proper question tag:

Everyone stood up, ____________ ?

1. didn't they
2. did he
3. wasn't he
4. were they

Correct Ans: A

Q26.If the no load voltage of a DC generator is 210 V and the rated voltage is 200 V, the voltage regulation is

1. 0.025
2. 0.05
3. 0.1
4. 0.15

Correct Ans: B

Q27.If the field winding of a D. C. shunt motor gets opened while the motor is running,

1. The motor speed will reduce
2. The armature current will reduce
3. The motor will attain dangerously high speed
4. The motor will continue to run at constant speed

Correct Ans: C

Q28.જાહેર વિતરણ વ્યવ્સ્થા હેથળના કેરોસીન ડાયવર્જન અટ્કાવવા માટે મુકેલ " પાટ્લોટ પ્રોજેક્ટ ઓફ ડાયરેક્ટ બેનીફિટ ટ્રાંસ્ફર ઇન કેરોસીન" યોજના હાલમા કેટલા જિલ્લાઓમા મુક્વાનુ નક્કી કરવામા આવેલ છે?

1. 5
2. 7
3. 9
4. 13

Correct Ans: B

Q29.In load flow study, a PV bus is treated as a PQ bus when

1. Voltage limit is violated
2. Active power limit is violated
3. Phase angle is high
4. Reactive power limit is violated

Correct Ans: D

Q30.સાચી જોડણી દર્શાવો.

1. રીશેષ
2. રિસેસ
3. રિશેષ
4. રિષેશ

Correct Ans: B

Q31.An iron cored coil has an inductance of 2 H. If the reluctance of the magnetic circuit is 200 AT/Wb, the number of turns on the coil is

1. 100
2. 400
3. 50
4. 20

Correct Ans: D

Q32.Synchronous motors are usually operated at

1. Unity power factor
2. Leading power factor
3. Lagging power factor
4. All of above

Correct Ans: D

Q33.Wave trap is used to trap the waves of

1. Power frequencies
2. Higher frequencies entering generator or transformer units
3. Either of above
4. None of above

Correct Ans: B

Q34.Range of a voltmeter can be extended by connecting a

1. Shunt in series.
2. Shunt in parallel
3. Multiplier in series.
4. Multiplier in parallel.

Correct Ans: C

Q35.રિજર્વ બેંક ઓફ ઇંડિયા દ્વારા સૌપ્રથમ બહાર પાડેલ જાહેરનામા પ્રમાણે 24 નવેમ્બર 2016, સુધીમા એક અઠવાડિયામા બેંકના કાઉંટર ઉપરથી મહ્ત્તમ કેટ્લી રકમની ઉપાડી એક બેંક ખાતા માથી કોઇ પણ વ્યક્તિ કરી શકશે?

1. રુ. 20000 /-
2. રુ. 10000 /-
3. રુ. 2000 /-
4. રુ. 4000 /-

Correct Ans: A

Q36.Interpoles are meant for

1. Increasing the speed of the motor
2. Decreasing the counter emf.
3. Reducing sparking at the commutator.
4. Converting armature currennt to d.c.

Correct Ans: C

Q37.If the spacing between the conductors increases, the corona effect

1. Increases
2. Decreases
3. Remains the same
4. Corona does not depend upon conductor spacing

Correct Ans: B

Q38.નીચેમાથી ક્યા લેખકને ગુજરાતી સાહિત્યનો જ્ઞાનપીથ એવોર્ડ મળેલ છે?

1. ઉમાશંકર જોશી
2. પન્નાલાલ પટેલ
3. રાજેંદ્ર શાહ
4. આપેલ તમામ

Correct Ans: D

Q39.In a 3 phase, 4 wire unbalanced system, the current in the neutral wire is 18 A. The magnitude of the zero sequence current is

1. 18 A
2. 9A
3. 6A
4. 3A

Correct Ans: C

Q40.Give the past tense form of:

To seek

1. sake
2. sought
3. seeked
4. seekend

Correct Ans: B

Q41.Where voltages are high and current to be interrupted is low, the circuit breaker preferred is

1. Air break
2. Vacuum
3. Oil
4. Air-blast

Correct Ans: B

Q42.The transient state stability limit of a system is

1. Less than the steady state stability limit
2. Equal to the steady state stability limit
3. More than the steady state stability limit
4. Equal to the dynamic stability limit.

Correct Ans: A

Q43.ગોળા ની ત્રિજ્યા માં 10% વધારો કરતા ગોળા ના ઘનફળ માં \(_{--------} \) % નો વધારો થાય.

1. 10
2. 21
3. 33.1
4. 27.1

Correct Ans: C

Q44.Which relay is more sensitive ? 1 VA or 2 VA?

1. 1 VA
2. 2 VA
3. Both are equally sensitive
4. Both are insensitive

Correct Ans: A

Q45.નીચે આપેલ વાક્ય માટે આપેલ વિકલ્પોમાંથી લેખન રૂઢિ અને ભાષાની દ્રષ્ટિએ શુદ્ધ વાક્ય લખો:

ચરણા મૃત પિવાનો અમારે નિયમ છે.

1. ચરણામૃત પીવાનો અમારે નિયમ છે.
2. ચરણ-અમૃત અમારે પિવાનો નિયમ છે.
3. ચરણામૃત અમારે પીવાનો નિયમ છે.
4. અમારે ચરણામૃત પિવાનું નીયમ છે.

Correct Ans: A

Q46.An over current relay having a current setting of 125% is connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is

1. 6.25 A
2. 15 A
3. 10A
4. 12.5 A

Correct Ans: A

Q47.The receiving end power factor of a short transmission line changes from lagging to leading. The voltage regulation of the line will

1. Decrease
2. Remain unchanged
3. Increase
4. Become zero

Correct Ans: A

Q48.ગુજરાત રાજ્યના ખેડા જિલ્લાને નીચે દર્શાવેલ જિલ્લાઓ પૈકી ક્યા જિલ્લાની હદ સ્પર્શતી નથી?

1. અરવલ્લી
2. આણંદ
3. છોટા ઉદેપુર
4. મહીસાગર

Correct Ans: C

Q49.If the lagging power factor of the load decreases, the line losses will

1. Decrease
2. Increase
3. First decrease and then increase
4. Remain same

Correct Ans: B

Q50.2001 ના ગુજરાતના ભુકંપમાં કેટ્લા લોકોએ પોતાનુ જીવન ગુમાવ્યુ?

1. અંદાજે 50000
2. અંદાજે 14000
3. અંદાજે 80000
4. અંદાજે 100000

Correct Ans: B

Q51.A line trap in carrier current relaying tuned to carrier frequency presents

1. Low impedance to both carrier and power frequency
2. High impedance to carrier frequency and low impedance to power frequency
3. High impedance to both carrier frequency and power frequency
4. Low impedance to carrier frequency and high impedance to power frequency

Correct Ans: B

Q52.Transfer function of a system is used to calculate which of the following?

1. The order of the system
2. The output for a given input
3. The time constant
4. The steady state gain

Correct Ans: B

Q53.શ્રદ્ધા' શબ્દની સંધિ છૂટી પાડો.

1. શ્રુ + ઘા
2. શ્રત્ + ઘા
3. શ્રુત + ઘા
4. શ્રન્ + ઘા

Correct Ans: B

Q54.Two transformers operating in parallel will share the load depending upon their

1. Leakage reactance
2. Per unit impedance
3. Efficiencies
4. Ratings

Correct Ans: B

Q55.Select single word for the following phrase:

" One who does not believe in existence of god."

1. theist
2. atheist
3. swindler
4. hermit

Correct Ans: B

Q56.Which method of braking is generally used in elevators?

1. Plugging
2. Regenerative braking
3. Rheostatis braking
4. Static braking

Correct Ans: A

Q57.In D.C. generators, lap winding is used for

1. High voltage, high current
2. Low voltage, high current
3. High voltage, low current
4. Low voltage, low current

Correct Ans: B

Q58.પ્રકાશની કઇ ઘટના દ્વારા શ્વેતપ્રકાશનુ કિરણ સાત ઘટક રંગો મા છુટુ પડે છે?

1. વક્રીભવન
2. પરાવર્તન
3. વિભાજ્ન
4. વ્યતિકરણ

Correct Ans: C

Q59.The purpose of the restraining coil in a biased differential relay is

1. To reduce CT saturation during fault.
2. To increase the sensitivity of the relay.
3. To match the transformation ratio.
4. To limit the spill current through the relay during heavy external fault.

Correct Ans: D

Q60.ફાગણમાં વૃક્ષો પરથી સૂરજને ખરતો જોઉં છું'

ખરતો - કૃદંતનો પ્રકાર જણાવો.

1. ભૂતકૃદંત
2. વિધ્યર્થકૃદંત
3. ભવિષ્યકૃદંત
4. વર્તમાનકૃદંત

Correct Ans: D

Q61.Power factor of a pure inductor is

1. Unity
2. Zero
3. Infinite
4. 0.707

Correct Ans: B

Q62.In over current protection, the setting of the earth fault relay is

1. More than the phase fault relay
2. The two settings are not related to each other
3. Equal to the phase fault relay
4. Less than the phase fault relay

Correct Ans: D

Q63.16 બાળકો ની સરાસરી ઉંમર 11.3 વર્ષ છે. જો 16.4 વર્ષ ની ઉંમર વાળો એક બાળક ઉમેરવામાં આવે, તો સરાસરી \(_{--------} \)

1. 11.5
2. 11.6
3. 10.3
4. 11.4

Correct Ans: B

Q64.Transposition of a transmission line is done to

1. Reduce line loss
2. Reduce skin effect
3. Balance line voltage drop
4. Reduce corona

Correct Ans: C

Q65.ટેરિલિન કેવા પ્રકારનો પોલિમર છે?

1. પ્લાસ્ટિક
2. પોલિએસ્ટર
3. પોલિએમાઇડ
4. પોલિઇથીન

Correct Ans: B

Q66.Which of the following sequence of operations represents the rated operating duty cycle of a circuit breaker ? O-Open, C-Close, CO-Close followed by open, t = 3s, T = 3 minutes

1. O-t-CO-T-CO
2. O-CO-t-CO-T-C
3. O-C-t-OC-T
4. O-CO-T-CO-T-C

Correct Ans: A

Q67.The function of pole shoes in the case of DC machine is to

1. Spread out the flux to achieve uniform flux density
2. Reduce the reluctance of the magnetic path,
3. Support the field coil
4. Discharge all the above mentioned functions

Correct Ans: D

Q68.જેમાં માન-આદર કે વિવેક વ્યક્ત થાય તે નિપાતનું પદ કયું?

1. હા....હોં
2. જી
3. તદ્દન
4. રે

Correct Ans: B

Q69.If a relay fails to operate for a fault within its reach, it is said to

1. Under reach
2. Over reach
3. Reach
4. Double reach

Correct Ans: A

Q70.Arrange the following words in 'Alphabetical order'.

(1) Popular
(2) Population
(3) Populous
(4)Popularity

1. (3), (1), (4), (2)
2. (3), (4), (2), (1)
3. (2), (1), (4), (3)
4. (1), (4), (2), (3)

Correct Ans: D

Q71.In the squirrel cage induction motors, the root slots are usually given a slight skew to reduce

1. Windage losses
2. Eddy currents
3. Accumulation of dirt and dust
4. Magnetic hum

Correct Ans: D

Q72.The operating point of a protective current transformer is near the

1. Ankle point
2. Toe point
3. Knee point
4. Foot point

Correct Ans: A

Q73.ભારતના કયા શહેરમાં "લોક નાયક જયપ્રકાશ" એરપોર્ટ આવેલ છે ?

1. પટણા
2. રકસોલ
3. ધનબાદ
4. ઇમ્ફાલ

Correct Ans: A

Q74.In the measurement of power by two wattmeter method, when the readings of the two watt meters are equal, the power factor is

1. Zero
2. Leading
3. Lagging
4. Unity

Correct Ans: D

Q75.દારૂણ વૃષ્ટિ થઈ દિન સાત, થાક્યા હારી વળ્યા વરસાદ - રેખાંકિત વિશેષણ નો પ્રકાર જણાવો.

1. ગુણવાચક
2. સંખ્યાવાચક
3. વ્યક્તિવાચક
4. રંગવાચક

Correct Ans: A

Q76.The full load copper loss of a transformer is 1600 W Its copper loss at half full load will be

1. 6400 W
2. 1600 W
3. 800 W
4. 400 W

Correct Ans: D

Q77.Crawling in an induction motor is caused by

1. Low voltage supply
2. High loads
3. Harmonics developed in the motor
4. Improper design of the machine

Correct Ans: C

Q78.પોર્ટુગીઝૉ (ફિરંગીઓ) એ તે સમયના ગુજરાતના અને હાલના કેન્દ્રશાસિત પ્રદેશ એવા કયા શહેરને પોતાનો મથક બનાવ્યું હતું?

1. માંડવી
2. દીવ
3. ભાવનગર
4. જામનગર

Correct Ans: B

Q79.While conducting short circuit test on a transformer, which side is kept shorted

1. High voltage side.
2. Primary side
3. Low voltage side
4. Secondary side

Correct Ans: C

Q80.વિદ્યુત પ્રવાહની ઉષ્મીય અસર પર કામ કરતું સાધન કયું છે

1. વિદ્યુત ઈસ્ત્રી
2. ટ્યુબલાઈટ
3. ટીવી
4. વિદ્યુત ઘંટડી

Correct Ans: A

Q81.A guy wire

1. Protects conductors against short circuits
2. Provides emergency earth route
3. Provides protection against surges
4. Supports the pole

Correct Ans: D

Q82.A change of 4% in the supply voltage of an induction motor will produce a change of approximately

1. 4% in the rotor torque
2. 8% in the rotor torque
3. 12% in the rotor torque
4. 16% in the rotor torque

Correct Ans: D

Q83.નીચે આપેલ વિભાજિત વાક્યમાં ના જે વિભાગમાં ભૂલ હોય તેનો ક્રમાંક જણાવો.

બંનેનો મેળાપ / સમય તેઓ / પિતા- પુત્ર છે / એવું જાણતા નથી.

\(\:\:\:\:\:\:(A)\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:(B)\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:(C)\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:(D)\)

1. બંનેનો મેળાપ
2. સમય તેઓ
3. પિતા- પુત્ર છે
4. એવું જાણતા નથી

Correct Ans: A

Q84.The power factor of an induction motor under no load conditions will be close to

1. 0.2 lagging
2. 0.2 leading
3. 0.5 lagging
4. Unity

Correct Ans: A

Q85.Give plural form of: 'grief'

1. griefs
2. grieves
3. griefes
4. grief

Correct Ans: A

Q86.When a double cage induction motor is started, the current induced in the rotor

1. Flows mostly through the upper cage.
2. Flows mostly through the lower cage
3. is directly proportional to the impedance offered by each cage
4. is equally divided between the two cages

Correct Ans: A

Q87.Fractional pitch windings are used in DC machines to

1. Reduce copper losses
2. Improve cooling
3. Increase the generated emf
4. Reduce sparking

Correct Ans: D

Q88. ઐતિહાસિક સ્થળ ધુમલી કયા જિલ્લામાં આવેલું છે

1. ભાવનગર
2. કચ્છ
3. દેવભૂમિ દ્વારકા
4. મહીસાગર

Correct Ans: C

Q89.The condition for maximum efficiency of a D.C. generator is

1. Eddy current losses=stray losses.
2. Eddy current losses=hysteresis losses
3. Copper losses = 0
4. Variable losses = constant losses.

Correct Ans: D

Q90. "આણીયા" તળપદો શબ્દ છે જેનો અર્થ શું થશે?

1. ભાણિયો
2. કાણો માણસ
3. ખરીદવું
4. આ બાજુ

Correct Ans: D

Q91.To protect the power transformer with star-delta connection against earth and phase faults, the current transformer should have

1. Delta-delta connection
2. Star-delta connection
3. Delta-star connection
4. Star-star connection

Correct Ans: C

Q92.A \(1000\:W\) heater is rated to operated at a direct current of \(10\:A\). If the heater is supplied alternating current for producing the same quantity of heat, the value of current should be

1. \(I_{av}=10\:A\)
2. \(I_{rms}=10\:A\)
3. \(I_{rms}=10.2\:A\)
4. \(I_{peak}=10\:A\)

Correct Ans: B

Q93.નીચેના પૈકી કયો બંધારણીય સુધારો સ્થાનિક સ્વરાજની સંસ્થા (પંચાયતો) ને લગતો છે?

1. ૫૬ મો સુધારો
2. ૭૩ મો સુધારો
3. ૪૨ મો સુધારો
4. ૬૧ મો સુધારો

Correct Ans: B

Q94.In 3 stepped distance protection, the reach of the three zones of the relay at the beginning of the first line typically extends into

1. 100% of the first line, 50% of the second line and 20% of the third line.
2. 80% of the first line, 50% of the second line and 10% of the third line.
3. 80% of the first line, 50% of the second line and 20% of the third line.
4. 50% of the first line, 50% of the second line and 20% of the third line.

Correct Ans: C

Q95.તાજેતરમાં ઓસ્ટ્રેલિયાના મેલબોર્ન ખાતે રમાઈ ગયેલ હોકી ટીમના ભારતીય કેપ્ટન નું નામ જણાવો.

1. કિશનલાલ
2. ધ્યાનચંદ
3. રૂપિન્દરપાલ
4. પી.આર શ્રીજેસ

Correct Ans: D

Q96.The purpose of a choke in a fluorescent tube is

1. To decrease the current
2. To increase the current
3. To decrease the voltage momentarily
4. To increase the voltage momentarily

Correct Ans: D

Q97.\(30^\circ\), \(60^\circ\) and \(90^\circ\) connections are provided in a directional relay

1. To render the relay maximum torque under fault conditions.
2. To render the relay minimum torque under fault conditions.
3. To render the relay zero torque under fault conditions.
4. To render the relay constant torque under fault conditions.

Correct Ans: A

Q98.સમાનાર્થી શબ્દ ની ખોટી જોડણી શોધો.

1. અંગારો - સળગતો કોલસો
2. અનુકંપા - કરુણા
3. અફળ - સફળ
4. આકરો - અસહ્ય

Correct Ans: C

Q99.The maximum efficiency of a distribution transformer is

1. at no load
2. at 50% full load
3. at 80% full load
4. at full load

Correct Ans: B

Q100.Give synonym: Rhetoric

1. Grandiloquence
2. Interesting talk
3. Magnificent
4. Quiet

Correct Ans: A

Q101.If the back e.m.f. and speed of a DC motor are doubled, the torque developed by motor

1. will remain unchanged.
2. will reduce to one fourth value
3. will increase four folds
4. will be doubled

Correct Ans: A

Q102.The steady state stability of the power system can be improved by

1. using machines of high impedance
2. connecting transmission lines in series
3. connecting lines in parallel
4. reducing the excitation of the machines.

Correct Ans: C

Q103.રાજ્યપાલ કોઈ અન્ય સંસ્થાનું વેતનવાળું પદ નહી સ્વીકારે એ જોગવાઈ બંધારણની કઈ કલામમાં કરવામ આવેલ છે?

1. 156(1)
2. 158(2)
3. 158(5)
4. 157(7)

Correct Ans: B

Q104.The type of back-up protection which is generally used in the protective systems is

1. Remote back-up
2. Breaker back-up
3. Relay back-up
4. Isolator back-up

Correct Ans: A

Q105.લેખક શ્રી રઘુવીર ચૌધરીએ તેમની પ્રથમ નવલકથા કઈ સાલમાં પ્રકાશિત કરી?

1. ઈ.સ. 1961
2. ઈ.સ. 1962
3. ઈ.સ. 1963
4. ઈ.સ. 1964

Correct Ans: D

Q106.The bridge used for measurement of capacitance is

1. Wien's bridge
2. Wheatstone bridge
3. Schering bridge
4. Hay's bridge

Correct Ans: C

Q107.In short circuit calculations, the selected base kVA is equal to

1. That of the largest plant
2. The total plant capacity
3. Any arbitrary value
4. Can be any one of (A), (B) (C)

Correct Ans: D

Q108.MS Office પૅકેજમાં કયા પ્રોગ્રામ નો સમાવેશ થાય છે?

1. MS Word
2. MS Excel
3. MS Powerpoint
4. આપેલ તમામ

Correct Ans: D

Q109.At \(t=0_+\) with zero initial condition, which of the following acts as a short circuit?

1. Inductor
2. Resistor
3. Capacitor
4. Current source

Correct Ans: C

Q110.A, B, C બહેનો છે. D એ E નો ભાઈ છે. E, B ની દીકરી છે. A, D સાથે શું સબંધ ધરાવે છે?

1. બહેન
2. પિતરાઇ
3. ભત્રીજી
4. માસી

Correct Ans: D

Q111.Two fuse wires of the same material have fusing currents of 10 A and 5 A. The 10 A fuse will have

1. Smaller diameter
2. Larger diameter
3. Same diameter as the 5 A fuse
4. Fusing current does not depend on the diameter

Correct Ans: B

Q112.In order to reduce the voltage surges due to current chopping and capacitive current breaking, we connect

1. A resistor across the CB contacts.
2. A capacitor across the CB contacts.
3. An inductor across the CB contacts.
4. A switch across the CB contacts.

Correct Ans: A

Q113."ઘરડાં ગાડા વાળે" કહેવતની વિરોધી કહેવત જણાવો.

1. મહેતો મારેય નહિ ને ભણાવેય નહિ
2. ભસતો કૂતરો ભાગ્યે જ કરડે
3. સાઠે બુદ્ધિ નાઠે
4. પગ જોઈ પાથરણું તાણવું

Correct Ans: C

Q114.Salient pole type rotors are generally used with prime movers of

1. High speed
2. Low speed
3. Low and high speed
4. Medium speed

Correct Ans: B

Q115.Give the verb form of: Danger

1. Dangerous
2. Dangerously
3. Endanger
4. Dangeren

Correct Ans: C

Q116.In a DC motor, if the back emf is absent

1. The motor will burn
2. The motor will not run at all.
3. The motor will run at a very slow speed.
4. The motor will run at a very high speed.

Correct Ans: A

Q117.D.C. generators are installed near the load centers to reduce

1. Iron losses
2. Line losses
3. Sparking
4. Corona losses

Correct Ans: B

Q118.તાજેતરમાં અવસાન પામેલ ક્યુબાના ક્રાંતિકારી આગેવાન અને પૂર્વ પ્રમુખ નું નામ જણાવો .

1. કોલિન્ડા ગ્રેબર
2. રાઉલ સ્મિથ
3. ફિડેલ કાસ્ટ્રો
4. મરીઓના રાજોય

Correct Ans: C

Q119.The effect of increase of temperature on overhead lines is to

1. Decrease the length but to increase the stress.
2. Decrease the stress but to increase the length.
3. Decrease the stress and length.
4. Increase the stress and length

Correct Ans: B

Q120.નીચે આપેલા શબ્દોમાંથી "રાંકડી" જેવો શબ્દ કયો છે?

1. કૂકરી
2. ચકલી
3. ગરીબડી
4. કાકડી

Correct Ans: C

Q121.Location of the lightning arrester is near the

1. Generator
2. Transformer
3. Bus-bar
4. Circuit breaker

Correct Ans: B

Q122.If the cable length increases, its insulation resistance

1. Decreases
2. Remains constant
3. Increases
4. Becomes zero

Correct Ans: A

Q123.વડનગર તાલુકો ગુજરાત રાજ્યના કયા જિલ્લામાં આવેલ છે

1. પાટણ
2. સુરેન્દ્રનગર
3. મહેસાણા
4. સુરત

Correct Ans: C

Q124.For the protection of a large single phase induction motor against single phasing, normally

1. A directional relay is used.
2. An over current relay is used.
3. Negative sequence current sensitive relay is used.
4. A differential relay is used.

Correct Ans: C

Q125.ખુલ્લામાં શૌચ કરવાથી નીચેના પૈકી કયા રોગો ફેલાય છે?

1. ટાઈફોઈડ અને કોલેરા
2. હિપેટાઇટિસ
3. પોલિયો
4. ઉપરોક્ત તમામ

Correct Ans: D

Q126.An ideal voltage source

1. Has terminal voltage in proportion to current
2. Has terminal voltage in proportion to load
3. Has zero internal resistance
4. Has open circuit voltage nearly equal to the voltage on full load

Correct Ans: C

Q127.The arc voltage in a circuit breaker is

1. in the phase with the arc current
2. lagging the arc current by 90°
3. leading the arc current by 90°
4. lagging the arc current by 180°

Correct Ans: A

Q128.નીચેના વાક્યમાંથી લીટી દોરેલ શબ્દનો સમાસ ઓળખાવો.

ધર્મભ્રષ્ટ સાધુઓ સાચા ધર્મ પરથી લોકોની વિશ્વાસ ઉઠાડી દે છે.

1. ચતુર્થી તત્પુરૂષ સમાસ
2. પંચમી તત્પુરૂષ સમાસ
3. ષષ્ઠિ ત્પુરૂષ સમાસ
4. સપ્તમી તત્પુરૂષ સમાસ

Correct Ans: B

Q129.The statutory limit for voltage variation at the consumer's terminal is

1. ± 6 % of the declared voltage
2. ± 2 % of the declared voltage
3. ± 10 % of the declared voltage
4. ± 4 % of the declared voltage

Correct Ans: A

Q130.Join the sentences with a proper conjunction:

He worked hard. He failed.

1. He worked hard so he failed.
2. He failed but he works hard.
3. Though he worked hard, he failed.
4. He worked hard and he failed.

Correct Ans: C

Q131.The normal frequency rms voltage that appears across the circuit breaker contacts after the final arc extinction is called the

1. Supply voltage
2. Restriking voltage
3. Recovery voltage
4. Breaking voltage

Correct Ans: C

Q132.The single phase motor generally used in ceiling fan is

1. Capacitor start type
2. Split phase type
3. Capacitor start and run type
4. Pemanent capacitor type

Correct Ans: C

Q133.વાર્ષિક ઓછામાં ઓછા કેટલા રૂપિયાથી વધુ આવક ધરાવતા કુટુંબો માટે એપીએલ-૨ કાર્ડની યોજના અમલમાં છે?

1. રૂ. 1,00,000 થી વધુ
2. રૂ. 1,50,000 થી વધુ
3. રૂ. 1,20,000 થી વધુ
4. રૂ. 1,80,000 થી વધુ

Correct Ans: A

Q134.For increase in the line voltage, which of the following does not take place ?

1. Increase in span
2. Increase in conductor size
3. Increase in the tower height
4. Increase in clearance from ground

Correct Ans: B

Q135.નીચે આપેલ શબ્દનો વિરુદ્ધાર્થી શબ્દ વિકલ્પમાંથી પસંદ કરો:

વૃદ્ધિ

1. સહેલું
2. વિભક્ત
3. વધવું
4. ક્ષય

Correct Ans: D

Q136.Hunting takes place in a synchronous motor when the

1. supply voltage fluctuates
2. load varies
3. power factor is unity
4. motor is under loaded

Correct Ans: B

Q137.Which of the following is the essential requirement of peak load plant ?

1. It should run at high speed
2. It should produce high voltage
3. It should be small in size
4. It should be capable of starting quickly

Correct Ans: D

Q138.નીચેના વિધાનો માંથી કયા સાચા વિધાનો છે?

1. જિલ્લા આયોજન સમિતિ પેટા સમિતિઓની રચના કરી શકે છે.

2. જિલ્લા આયોજન સમિતિએ રાજ્ય સરકારને જિલ્લાની વિકાસ યોજના નો મુદ્દો મોકલવાનો હોય છે.

3. જિલ્લા આયોજન સમિતિએ ગ્રામ પંચાયતોને માટે વિકાસ યોજનાઓ તૈયાર કરવાની હોય છે.

4. જિલ્લા આયોજન સમિતિએ વિકાસ યોજના તૈયાર કરતી વખતે પર્યાવરણનું જતન કેવી રીતે કરવું તે ધ્યાનમાં લેવાનું હોય છે.

ઉપરના માંથી કયું વિધાન સાચું છે.

1. 1,2
2. 3,4
3. 2,3
4. 1,3

Correct Ans: C

Q139.Creeping in energy meters can be prevented by proving

1. One hole on the disc
2. Two holes on opposite sides of the disc
3. Extra voltage coil in the meter
4. Extra current coil in the meter

Correct Ans: B

Q140.જો DICTIONARY શબ્દ 1234256789 સંજ્ઞા બને, તો ORDINARY શબ્દ ની સંજ્ઞા કઈ બને ?

1. 59126789
2. 58126789
3. 57326789
4. 56126789

Correct Ans: B

Q141.If two alternators are running in proper synchronism and the voltage of one machine is suddenly increased,

1. Both machines will stop.
2. One machine will stop.
3. Both machines will continue to run as it is.
4. Synchronizing torque will be produced to restore further synchronism

Correct Ans: D

Q142.Which of the following protection is normally not provided on small distribution transformers?

1. Overfluxing protection
2. Directional protection
3. Over current protection
4. Buchholz relay

Correct Ans: D

Q143.શબ્દ સમૂહ માટે એક શબ્દ આપો.

બાળકો તરફનું વહાલ

1. પ્રેમ
2. અનુરાગ
3. વાત્સલ્ય
4. હેમ

Correct Ans: C

Q144.Which of the following parameter can be neglected for a short transmission line ?

1. Resistance
2. Capacitance
3. Inductance
4. Reactance

Correct Ans: B

Q145.Change the degree:

Sleep is not less necessary than food.

1. Sleep is at least as necessary as food.
2. Sleep is more necessary than food.
3. Food is less necessary as sleep.
4. None

Correct Ans: A

Q146.Scott connections are used to convert

1. Three phase supply to D.C. supply
2. Three phase supply to two phase supply
3. Three phase supply to four phase supply
4. Three phase supply to single phase supply

Correct Ans: B

Q147.In an Inverse Definite Minimum Time (IDMT) type over current relay, the minimum time feature is achieved because of:

1. Saturation of the magnetic circuit
2. Proper mechanical design
3. Appropriate time delay element
4. Electro magnetic damping .

Correct Ans: A

Q148.સાર્ક દેશોના સમૂહમાં ભારત, ભૂતાન, નેપાળ, પાકિસ્તાન, બાંગ્લાદેશ, અફઘાનિસ્તાન અને શ્રીલંકા ઉપરાંત કયા દેશોનો સમાવેશ થાય છે?

1. તજિકિસ્તાન
2. ચાઇના
3. ઉજબેકીસ્તાન
4. માલદીવ્સ

Correct Ans: D

Q149.Line which connects the consumer to the distributor is called the

1. Feeder
2. Distributor
3. Service mains
4. Earth wire

Correct Ans: C

Q150.સાહિત્યકાર અને સાહિત્યનું કયું જોડકું ખોટું છે?

1. પ્રેમાનંદ - આખ્યાન
2. વલ્લભ ભટ્ટ - ગરબા
3. કલાપી - ખંડકાવ્ય
4. ન્હાનાલાલ - પદ્યવાર્તા

Correct Ans: D

Q1.Solar thermal power generation can be achieved by

1. using focusing collector or heliostats
2. using flat plate collectors
3. using a solar pond
4. any of the above system

Correct Ans: D

Q2.The overall efficiency of thermal power plant is equal to

1. Rankine cycle efficiency
2. Carnot cycle efficiency
3. Regenerative cycle efficiency
4. Boiler efficiency * turbine efficiency * generator efficiency

Correct Ans: D

Q4.For which of the following locomotives the maintenance requirements are the least ?

1. System locomotives
2. Diesel locomotives
3. Electric locomotives
4. Equal in all of the above

Correct Ans: C

Q6.Most of the common metals have__________structure.

1. linear
2. hexagonal
3. orthohombic
4. cubic

Correct Ans: D

Q7.Shunt capacitance is neglected while considering

1. short transmission line
2. medium transmission line
3. long transmission line
4. medium and long transmission lines

Correct Ans: A

Q9.Hot rolled sheets have_________value of permeability

1. zero
2. low
3. high
4. none of the above

Correct Ans: B

Q11.The interaction between a transmission line and communication line is minimized by

1. transposing transmission as well as communication lines
2. increasing the height of the transmission line tower
3. increasing the distance between the two lines
4. all of the above

Correct Ans: D

Q12.Long distance railways use which of the following?

1. 200 V DC
2. 25 KV single phase A.C
3. 25 KV two phase A.C
4. 25 KV three phase A.C

Correct Ans: B

Q14.The wheels of a train, engine as well as bogies, are slightly tapered to

1. reduce friction
2. increase friction
3. facilitate braking
4. facilitate in taking turns

Correct Ans: D

Q16.The voltage of the single phase supply to residential consumers is

1. 110 V
2. 210 V
3. 230 V
4. 400 V

Correct Ans: C

Q22.Ohm's law is not applicable to

1. vaccum tubes
2. carbon resistors
3. high voltage circuits
4. circuits with low current densities

Correct Ans: A

Q24.The filament of an electric bulb is made of

1. Carbon
2. Aluminium
3. Tungsten
4. Nickle

Correct Ans: C

Q26.Multicore cables generally use

1. square conductors
2. circular conductors
3. rectangular conductors
4. sector shaped conductors

Correct Ans: D

Q27.The main function of a fuse is to

1. protect the line
2. open the circuit
3. protect the appliance
4. prevent excessive currents

Correct Ans: D

Q29.Magnetic circuit breaker has__________trip action.

1. delayed
2. instantaneous
3. both of the above
4. none of the above

Correct Ans: B

Q31.Artificial draught is produced by

1. induced fan
2. forced fan
3. induced and forced fan
4. all of the above

Correct Ans: D

Q32.A perfect conductor has

1. zero conductivity
2. unity conductivity
3. infinite conductivity
4. none of the above

Correct Ans: C

Q36.Overhead lines generally use

1. copper conductors
2. Aluminum conductors
3. A.C.S.R. conductors
4. none of these

Correct Ans: C

Q42.The ohmmeter reading for a short circuited capacitor is

1. infinity
2. few kilo ohms
3. few megohms
4. zero

Correct Ans: D

Q46.A thermal protection switch can protect against

1. short circuit
2. temperature
3. overload
4. over voltage

Correct Ans: C

Q47.Overhead telephone wires are made of

1. aluminium
2. steel
3. ACSR conductors
4. copper

Correct Ans: B

Q51.Which of the following methods is used for air cooling of turbo alternators ?

1. One sided axial ventilation
2. Two sided axial ventilation
3. Multiple inlet system
4. All of the above

Correct Ans: D

Q52.Which of the following materials is not used for transmission and distribution of electrical power?

1. Copper
2. Aluminum
3. Steel
4. Tungsten

Correct Ans: D

Q56.Large internal faults are protected by

1. Merz price percentage differential protection
2. Mho's and ohm relay
3. Horn gaps and temperature relay
4. Earth fault and positive sequence relay

Correct Ans: A

Q57.Overload capacity of diesel engines is usually restricted to ____ \(\%\).

1. 2
2. 10
3. 20
4. 40

Correct Ans: B

Q59.Coefficient of adhesion is

1. high in case of D.C. traction than in the case of AC. traction
2. low in case of D.C. traction than in the case of AC. traction
3. equal in both AC. and D.C. traction
4. any of the above

Correct Ans: B

Q62.The bridge used for the measurement of the value of the capacitance is

1. Wien's bridge
2. Wheatstone bridge
3. Schering bridge
4. Hay's bridge

Correct Ans: C

Q64.In a capacitor, the electric charge is stored in

1. metal plates
2. dielectric
3. dielectric as well as metal plates
4. none of the above

Correct Ans: B

Q66.Gilbert is a unit of

1. electromotive force
2. magnetomotive force
3. conductance
4. permittivity

Correct Ans: B

Q69.Which of the following are the constants of the transmission lines?

1. Resistance
2. Inductance
3. Capacitance
4. All of the above

Correct Ans: D

Q71.A booster is a

1. series wound generator
2. shunt wound generator
3. synchronous generator
4. none of the above

Correct Ans: A

Q72.The distributors for residential areas are

1. single phase
2. three phase
3. three phase four wire
4. none of the above

Correct Ans: C

Q74.The power factor of industrial loads is generally

1. unity
2. lagging
3. leading
4. zero

Correct Ans: B

Q76.Fault diverters are basically

1. fuses
2. circuit breakers
3. relays
4. fast switches

Correct Ans: D

Q82.Which of the following capacitor is preferred in case of single phase motor?

1. Mica capacitor
2. Paper capacitor
3. Electrolytic capacitor
4. Ceramic capacitor

Correct Ans: C

Q86.Which of the following braking systems is used on steam locomotives ?

1. Hydraulic system
2. Pneumatic system
3. Vacuum system
4. None of the above

Correct Ans: C

Q87.______was the first city in India to adopt electric traction.

1. Delhi
2. Madras
3. Calcutta
4. Bombay

Correct Ans: D

Q89.Method can bring the locomotive to dead stop.

1. Plugging braking
2. Rheostatic braking
3. Regenerative braking
4. None of the above

Correct Ans: A

Q91.The reflection coefficient at the open circuited end of a transmission line.

1. zero
2. infinity
3. unity
4. none of the above

Correct Ans: C

Q92.Which of the following is an advantage of electric traction over other methods of traction ?

1. Faster acceleration
2. No pollution problems
3. Better breaking action
4. All of the above

Correct Ans: D

Q99.A keeper is used to

1. change the direction of magnetic lines
2. amplify flux
3. restore lost flux
4. provide a closed path for flux

Correct Ans: D

Q102.A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is

1. 0.024 F
2. 0.12 F
3. 0.6 F
4. 0.8 F

Correct Ans: A

Q106.The return circuit for tramcars is through

1. neutral wire
2. rails
3. cables
4. common earthing

Correct Ans: B

Q107.The kinetic energy of a bounded electron is

1. less than that of unbounded electron
2. greater than that of unbounded electron
3. equal to that of unbounded electron
4. none of the above

Correct Ans: A

Q109.Carbon electrodes are not used in

1. GLS lamps
2. electric arc furnace
3. dry cells
4. cinema projectors

Correct Ans: A

Q111.The Biosavart's law is general modification of

1. Kirchhoff's law
2. Lenz's law
3. Ampere's law
4. Faraday's laws

Correct Ans: C

Q112.Temporary magnets are used in

1. loudspeakers
2. generators
3. motors
4. all of the above

Correct Ans: D

Q114.Insulation resistance of high voltage circuit breakers is more than

1. \(0.5 M \Omega\)
2. \(1 M \Omega\)
3. \(100 M \Omega\)
4. \(200 M \Omega\)

Correct Ans: C

Q116.Which of the following methods is used for laying of underground cables ?

1. Direct laying
2. Draw in system
3. Solid system
4. All of the above

Correct Ans: D

Q117.To reduce short circuit fault currents are used

1. reactors
2. resistors
3. capacitors
4. none of the above

Correct Ans: A

Q119.In a steam locomotive electric power is provided through

1. overhead wire
2. battery system
3. small turbo generator
4. diesel engine generator

Correct Ans: C

Q121.For given maximum axle load, tractive efforts of AC. locomotive will be

1. less than that of D.C. locomotive
2. more than that of D.C. locomotive
3. equal to that of D.C. locomotive
4. none of the above

Correct Ans: B

Q122.For three phase induction motors which of the following is the least efficient method of speed control ?

1. Cascade control
2. Pole changing
3. Rheostat control
4. Combination of cascade control and pole changing

Correct Ans: C

Q124.Out of the following which is not a poor conductor ?

1. Cast iron
2. Copper
3. Carbon
4. Tungsten

Correct Ans: B

Q127.In a circuit a 33 \(\Omega\) resistor carries a current of 2 A. The voltage across the

1. 33 V
2. 66 V
3. 80 V
4. 132 V

Correct Ans: B

Q129.The rating of fuse wire is always expressed in \(_{-----------}\)

1. amperes
2. volts
3. ampere-volts
4. ampere hours

Correct Ans: A

Q131.Which of the following statement is true ?

1. A galvanometer with low resistance in parallel is a voltmeter
2. A galvanometer with high resistance in parallel is a voltmeter
3. A galvanometer with low resistance in series is an ammeter
4. A galvanometer with high resistance in series is an ammeter

Correct Ans: C

Q132.Which method can be used for absolute measurement of resistances ?

1. Lorentz method
2. Releigh method
3. Ohm's law method
4. Wheatstone bridge method

Correct Ans: D

Q134.An efficient and a well designed protective relaying should have

1. good selectivity and reliability
2. economy and simplicity
3. high speed and selectivity
4. all of the above

Correct Ans: D

Q136.Mercury as an electric contact material is

1. a liquid
2. a metal
3. a metal liquid
4. a gas

Correct Ans: C

Q137.Galvanised steel wire is generally used as

1. stay wire
2. earth wire
3. structural components
4. all of the above

Correct Ans: D

Q139.Which of the following D.C. distribution system is the simplest and lowest in first cost?

1. Radial system
2. Ring system
3. Interconnected system
4. None of the above

Correct Ans: A

Q141.Most of the high voltage transmission lines in India are

1. underground
2. overhead
3. either of the above
4. none of the above

Correct Ans: B

Q142.The material commonly used for insulation in high voltage cable is

1. lead
2. paper
3. rubber
4. none of the above

Correct Ans: B

Q144.By which of the following systems electric power may be transmitted ?

1. Overhead system
2. Underground system
3. Both (A) and (B)
4. None of the above

Correct Ans: C

Q146.Solder is an alloy of

1. copper and aluminium
2. tin and lead
3. nickel, copper and zinc
4. silver, copper and lead

Correct Ans: B

Q147.A good electric contact material should have all of the following properties except

1. high resistivity
2. high resistance to corrosion
3. good thermal conductivity
4. high melting point

Correct Ans: A

Q149.Electrical machines having a power output up to about 750 W may be called__________machines.

1. small size
2. medium size
3. large size
4. any of the above

Correct Ans: A