Power Systems On which one of the following cycles does a modern steam power plant work? Otto cycle Carnot cycle Rankine cycle Bell-Coleman cycle Otto cycle Carnot cycle Rankine cycle Bell-Coleman cycle ANSWER DOWNLOAD EXAMIANS APP
Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of high energy loss in boilers high energy loss in condenser low steam turbine mechanical efficiency low alternator efficiency high energy loss in boilers high energy loss in condenser low steam turbine mechanical efficiency low alternator efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Offset mho relay is used for the protection of equipment when either 1 or 2 loss of excitation of the generator failure of prime mover of the generator None of these either 1 or 2 loss of excitation of the generator failure of prime mover of the generator None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The daily energy produced in thermal power station is 720 MWh at a load factor of 0.6. What is the maximum demand of the station? 720 MW 50 MW 30 MW 72 MW 720 MW 50 MW 30 MW 72 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems The radiation shield for a nuclear power reactor for biological safety is provided by having the reactor encased thick metal wall. immersed in water pool. encased by thick concrete wall. isolated from outside word with strong magnetic field. encased thick metal wall. immersed in water pool. encased by thick concrete wall. isolated from outside word with strong magnetic field. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 3 and 1 pu 2 and 5 pu 2 and 2 pu 1 and 3 pu 3 and 1 pu 2 and 5 pu 2 and 2 pu 1 and 3 pu ANSWER DOWNLOAD EXAMIANS APP