Electrical Engineering MCQs

Page No. 261

A schrage motor can run on___________?


azero slip


bnegative slip


cpositive slip


dall of the above


View Answer all of the above

A universal motor can run on___________?


aA.C. only


bD.C. only


ceither A.C. or D.C.


dnone of the above


View Answer either A.C. or D.C.

Which of the following motors is preferred for tape-recorders ?


aShaded pole motor


bHysteresis motor


cTwo value capacitor motor


dUniversal motor


View Answer Hysteresis motor

A single-phase induction motor is__________?


a inherently self-starting with high torque


binherently self-starting with low torque


cinherently non-self-starting with low torque


d inherently non-self-starting with high torque



For which of the applications a reluctance motor is preferred ?


aElectric shavers


b Refrigerators


cSignalling and timing devices


dLifts and hoists



The motor used on small lathes is usually_________?


auniversal motor


b D.C. shunt motor


c single-phase capacitor run motor


d3-phase synchronous motor



A hysteresis motor works on the principle of__________?


ahysteresis loss


bmagnetisation of rotor


ceddy current loss


d electromagnetic induction


View Answer hysteresis loss

Which of the following motor will give the highest starting torque ?


aD.C. shunt motor


b Schrage motor


cRepulsion start and induction run motor


dUniversal motor


View Answer Schrage motor

The power factor of a single-phase induction motor is usually?


a lagging


balways leading


cunity


dunity to 0.8 leading


View Answer lagging

A shaded pole motor can be used for_____________?


atoys


bhair dryers


ccirculators


dany of the above


View Answer any of the above

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