A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line any of the above medium transmission line long transmission line short transmission line TRUE ANSWER : ? YOUR ANSWER : ?
Incremental cost of two generators Ic1 = 0.2 P1+60, Ic2 = 0.3 P2+40 and the ratings of the generator are 150 and 250 MW. Find the load sharing of each generator for a load of 200 MW? P1 = 100 MW, P2 = 100 MW P1 = 60 MW, P2 = 140 MW P1 = 120 MW, P2 = 80 MW P1 = 80 MW, P2 = 120 MW TRUE ANSWER : ? YOUR ANSWER : ?
Merze price current scheme protection is used in transformer. alternator. bus bars. both A and B. TRUE ANSWER : ? YOUR ANSWER : ?
The specific speed of water turbine is the speed at which the turbine develops unit horse power at all heads. a minimum horse power. unit horse power at unit head. maximum horse power. TRUE ANSWER : ? YOUR ANSWER : ?
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 0.1 10 1000 TRUE ANSWER : ? YOUR ANSWER : ?
Making current is a------------ value? average peak value RMS any of the above TRUE ANSWER : ? YOUR ANSWER : ?
The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 3.535 pu 5 pu 5.353 pu 7 pu TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a reaction turbines Pelton turbine and Francis turbine. None of these. Kaplan and Pelton turbine. Francis turbine and Kaplan turbine. TRUE ANSWER : ? YOUR ANSWER : ?
In coal fired thermal power stations, what are the electrostatic precipitators used for? To collect the dust particles from the flue gases All of these To keep the air heaters clean To remove dust particles setting on the bus bar conductors in the station switch yard TRUE ANSWER : ? YOUR ANSWER : ?
Gas turbine power plants for maximum efficient may have All of above. Heat exchangers. Reheating. Multistage compression. TRUE ANSWER : ? YOUR ANSWER : ?