Synchronous Machines Quiz Questions and Answers Pdf - 2

Question: 6

For V-curves for a synchronous motor the graph is drawn between

(A) Armature current and power factor

(B) Field current and armature current

(C) Power factor and field current

(D) Terminal voltage and load factor

Question: 7

The armature of an alternator

(A) Consists of the winding into which current is induced

(B) Is the farme

(C) Is a resolving member

(D) Is a stationary member

Question: 8

A 3-phase synchronous motor is widely used for

(A) Power factor improvement

(B) Control of voltage at the end of a transmission line

(C) High torque loads

(D) Both a and b

Question: 9

Which type of alternator is used in hydroelectric power stations?

(A) Turbo generator

(B) Non salient pole alternator

(C) Steam turbine alternator

(D) Salient pole alternator

Question: 10

An ideal synchronous motor has no starting torque because the

(A) Relative velocity between the stator and the rotor mmfs is zero

(B) Relative velocity between the stator and rotor mmfs is not zero

(C) Rotor winding is highly reactive

(D) Rotor is made up of salient poles