SSC JE Electrical 2019 with solution SET-1
If the field of the synchronous motor is under excited the power factor will be:

Unity
Zero
Lagging
Leading

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SSC JE Electrical 2019 with solution SET-1
 In an AC network, the load connected is (10 + j10). The phase relation between the voltage applied and the current through the load is:

Voltage lags current by 45°
Voltage and current are in phase with each other
Voltage leads current by 45°
Voltage lags current by 30°

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SSC JE Electrical 2019 with solution SET-1
 Split-phase, capacitor, and shaded-pole single-phase motors classified as:

A.C. series motors
Repulsion motors
Un-excited synchronous motors
1-phase induction motors

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