Single Phase Induction Motors MCQ Questions & Answers | Electrical Engineering

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51.
In a shaded pole motor, the shading coil usually consist of

A. a single turn of heavy wire which is in parallel with running winding

B. a single turn of heavy copper wire which is short-circuited and carries only induced current

C. a multilayer fine gauge copper wire in parallel with running winding

D. none of the above

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52.
The shaded pole motor is used for

A. high starting torque

B. low starting torque

C. medium starting torque

D. very high starting torque

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53.
When a D.C. series motor is connected to A.C. supply, the power factor will be low because of

A. high inductance of field and armature circuits

B. induced current in rotor due to variations of flux

C. fine copper wire winding

D. none of the above

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54.
The motor used on small lathes is usually

A. universal motor

B. D.C. shunt motor

C. single-phase capacitor run motor

D. 3-phase synchronous motor

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55.
The speed of a universal motor is generally reduced by using

A. gear trains

B. V-belts

C. brakes

D. chains

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Single Phase Induction Motors MCQ Questions & Answers | Electrical Engineering

51. In a shaded pole motor, the shading coil usually consist of

Answer & Solution

52. The shaded pole motor is used for

Answer & Solution

53. When a D.C. series motor is connected to A.C. supply, the power factor will be low because of

Answer & Solution

54. The motor used on small lathes is usually

Answer & Solution

55. The speed of a universal motor is generally reduced by using

Answer & Solution

Read More Section(Single Phase Induction Motors)

51.
In a shaded pole motor, the shading coil usually consist of

52.
The shaded pole motor is used for

53.
When a D.C. series motor is connected to A.C. supply, the power factor will be low because of

54.
The motor used on small lathes is usually

55.
The speed of a universal motor is generally reduced by using