Govt Exams Mock Test FREE | Online Quiz Competition

Q1. For a step up transformer secondary resistance reffered to primary is

less than secondary resistance

equal to secondary resistance

more than secondary resistance

depends on transformer design

Q2. The function of a starter in a dc motor is to

control its speed.

limit the starting current to a safer value.

increase its starting torque.

none of above.

Q3. For which of the following applications is a DC series motor is suitable?

Blower

Fan

Centrifugal pump

Vaccum cleaner

Q4. Magnetizing reactance of transformer compared to primary and secondary leakage reactance (refered to primary) is

very small

almost equal

very large

depends on design

Q5. Tap changing facility is generally provided on

High voltage transformers

Current transformers

Distribution transformers

Step up transformers

Q6. The speed of D.C. series motor at no load is

Zero

1500 rpm

Infinity

None of these

Q7. In an induction motor, if the air gap is increased, its

speed will reduce

power factor will decrease

efficiency will improve

speed will increase

Q8. Open circuit test on a transformer yields________________.

Leakage of reactance

Core losses

Copper losses

Sum of core and copper losses

Q9. A Step Up transformer :

Steps up the level of Voltage

Steps down the level of current

Step up the level of Frequency

(a) and (b) only

Q10. A Transformer______________.

Changes DC to AC

Changes AC to DC

Steps up or down DC Voltages & Current

Steps up or down AC Voltages & Current

Quiz

Year 2025

March
Week # 2 Quiz 3

Q1. For a step up transformer secondary resistance reffered to primary is

Q2. The function of a starter in a dc motor is to

Q3. For which of the following applications is a DC series motor is suitable?

Q4. Magnetizing reactance of transformer compared to primary and secondary leakage reactance (refered to primary) is

Q5. Tap changing facility is generally provided on

Q6. The speed of D.C. series motor at no load is

Q7. In an induction motor, if the air gap is increased, its

Q8. Open circuit test on a transformer yields________________.

Q9. A Step Up transformer :

Q10. A Transformer______________.

Quiz

Year 2025

February Week # 3 Expire on 14 Mar 2025

February Week # 4 Expire on 21 Mar 2025

March Week # 1 Expire on 31 Mar 2025

March Week # 2 Expire on 07 Apr 2025

March Week # 2 Quiz 3

Q1. For a step up transformer secondary resistance reffered to primary is

Q2. The function of a starter in a dc motor is to

Q3. For which of the following applications is a DC series motor is suitable?

Q4. Magnetizing reactance of transformer compared to primary and secondary leakage reactance (refered to primary) is

Q5. Tap changing facility is generally provided on

Q6. The speed of D.C. series motor at no load is

Q7. In an induction motor, if the air gap is increased, its

Q8. Open circuit test on a transformer yields________________.

Q9. A Step Up transformer :

Q10. A Transformer______________.

Record & Track Your Performance

March
Week # 2 Quiz 3