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.Management Sciences
Category: Power Generation
The isentropic expansion of steam through nozzle for the steam initially dry saturated at inlet is approximated by equation?
0
A. pv = C
B. pv1A = C
C. pv1i = C
D. pv
In coal preparation plant, magnetic separators are used to remove___________?
A. dust
B. clinkers
C. iron particles
D. sand
The fuel used in nuclear reactor is_____________?
A. radium
B. cadmium
C. uranium
D. all of the above
Mercury is a choice with steam in binary vapour cycle because it has____________?
A. higher critical temperature and pressure
B. higher saturation temperature than other fluids
C. relatively low vapourisation pressure
D. all above
The energy radiated by sun on a bright sunny day is approximately______________?
A. 700 W/m2
B. 800 W/m2
C. 1 kW/m2
D. 2 kW/m2
Caking coals are those which__________?
A. burn completely
B. burn freely
C. do not form ash
D. form lumps or masses of coke
Diesel power plant are generally used as___________?
A. peak load plant
B. base load plant
C. standby plant
D. none of the above
(more…)
The overall efficiency of a steam power station is ________ its thermal efficiency.
A. less than
B. equal to
C. greater than
D. none of the above
Which of the following power plant usually offer highest maintenance cost___________?
A. Nuclear power plants
B. Hydro-electric power plants
C. Thermal power plants
D. Diesel engine power plant
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