Power Systems Pipes carrying steam are generally of aluminium. steel. cobalt. cast iron. aluminium. steel. cobalt. cast iron. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.0030 0.30 0.60 0.0060 0.0030 0.30 0.60 0.0060 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A pin type insulator has 100 kV puncture voltage. If 10 kV flash over voltage occurred in a transmission line, then find the safety factor of insulator? 0.001 1000 0.1 10 0.001 1000 0.1 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Per unit of any quantity is defined as actual value of quantity /base value of quantity in same units base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in different units base value of quantity /actual value of quantity in different units actual value of quantity /base value of quantity in same units base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in different units base value of quantity /actual value of quantity in different units ANSWER DOWNLOAD EXAMIANS APP
Power Systems Ferranti effect will not occur in which of the following transmission lines medium transmission lines short transmission lines long transmission lines All of these medium transmission lines short transmission lines long transmission lines All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Earth fault relay uses the which of the following sequence currents? positive sequence zero sequence negative sequence any of the above positive sequence zero sequence negative sequence any of the above ANSWER DOWNLOAD EXAMIANS APP
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