Govt Exams Mock Test FREE | Online Quiz Competition

Q1. When load on a transformer is increased, the eddy current

Is increased.

Remains unchanged.

Is decreased.

Becomes zero.

Q2. Power factor of a synchronous motor can be varied by varying

supply frequency

load

applied voltage

excitation

Q3. The maximum speed variation in 3 phase synchronous motor is

0.1

0.06

0.02

0

Q4. Which of the following is a constant speed motor?

DC series motor

Squirrel cage induction motor

Synchronous motor

Universal motor

Q5. It is advisable to start a d.c. series motor with some load to

limit flux

limit current

limit speed

avoid sparing

Q6. The regulation of an alternator is

the reduction in terminal voltage when alternator is loaded at

the variation of terminal voltage under the conditions of maximum

the increase in terminal voltage when load is thrown off at lagging P.F.

the change in terminal voltage from lagging power factor to leading power factor.

Q7. Stray loss is equal to__________.

frictional loss & copper loss

mechanical loss & iron loss

copper loss and iron loss

field copper loss & iron loss

Q8. Buchholz relay is

voltage sensitive device

current sensitive device

frequency sensitive device

gas actuated device

Q9. "V"curves of a synchronous motor give relation between

armature current and field current

applied voltage and field current

power factor and field current

armature current and power factor

Q10. The mechanical power developed by the armature of a dc motor is equal to

armature current multiplied by back emf

power input minus losses

power output multiplied by efficiency

power output plus iron losses

Quiz

Year 2024

December
Week # 2 Quiz 3

Q1. When load on a transformer is increased, the eddy current

Q2. Power factor of a synchronous motor can be varied by varying

Q3. The maximum speed variation in 3 phase synchronous motor is

Q4. Which of the following is a constant speed motor?

Q5. It is advisable to start a d.c. series motor with some load to

Q6. The regulation of an alternator is

Q7. Stray loss is equal to__________.

Q8. Buchholz relay is

Q9. "V"curves of a synchronous motor give relation between

Q10. The mechanical power developed by the armature of a dc motor is equal to

Quiz

Year 2024

November Week # 4 Expire on 21 Dec 2024

December Week # 1 Expire on 31 Dec 2024

December Week # 2 Expire on 07 Jan 2025

December Week # 3 Expire on 14 Jan 2025

December Week # 2 Quiz 3

Q1. When load on a transformer is increased, the eddy current

Q2. Power factor of a synchronous motor can be varied by varying

Q3. The maximum speed variation in 3 phase synchronous motor is

Q4. Which of the following is a constant speed motor?

Q5. It is advisable to start a d.c. series motor with some load to

Q6. The regulation of an alternator is

Q7. Stray loss is equal to__________.

Q8. Buchholz relay is

Q9. "V"curves of a synchronous motor give relation between

Q10. The mechanical power developed by the armature of a dc motor is equal to

Record & Track Your Performance

December
Week # 2 Quiz 3