Electrical power system quiz for psu

power system 

1.For a detection of the occurrence of the severe synchronizing power surges

(a) impedance relays are best suited   (b) reactance relays are best suited

(c) MHO relays are best suited              (d) split.phase relays are best suited.

2.The protection from negative sequence currents is provided for

(a) transformers           (b) generators

(c) motors                     (d) transmission lines.

3.If the height of the transmission tower is decreased, the capacitance of the line will

(a) increase                     (b) decrease

(c) remain same            (d) decrease exponentially.

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