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

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

11) Which one of the following motors can reverse its direction of rotation by simply reversing the supply connections ?

Answer is:

None of the above

12) What is the function of a centrifugal switch ?

Answer is:

To disconnect the starting winding when the motor attains 75% of its rated speed

13) A D.O.L. starter is necessary for a single phase motor of more than one H.P. for :

Answer is:

all the above three reasons

14) Capacitor-start and capacitor-start-capacitor-run motors employ :

Answer is:

paper or non-polarised electrolytic capacitors

15) The rotational speed of a universal motor can be controlled by :

Answer is:

any one of the above stated methods