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Electrician
Electrician Set-1
Single Phase Motors
19

Single Phase Motors MCQ - Electrician (Set-1) with Answers

19) If a winding makes electrical contact with the stator core, the winding is said to be :

short-circuited

open-circuited

closed

grounded

Answer is:

grounded

Single Phase Motors MCQ - Electrician (Set-1) with Answers

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Related Single Phase Motors MCQ - Electrician (Set-1) with Answers

20) A capacitor-start induction-run, single-phase motor has its capacitance replaced by an inductor of equivalent reactance value. If the motor is connected to the supply, it will

run in the reverse direction

not start with load

run with low torque taking a lower current

start but will not take any load

Answer is:

not start with load

21) A capacitor-start, single-phase motor will usually have a P.F. of :

0.8 leading

0.8 lagging

unity

none of the stated above

Answer is:

0.8 lagging

22) The most economical method of starting a single-phase motor is :

split-phase method

inductance start method

capacitance start method

resistance start method

Answer is:

resistance start method

23) Which of the following motors will give highest starting torque ?

Capacitor-start motor

Universal motor

Shaded pole motor

Reluctance motor

Answer is:

Universal motor

Single Phase Motors MCQ - Electrician (Set-1) with Answers

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