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.Management Sciences
Category: Economics of Power Generation
Annual depreciation of the plant it proportional to the earning capacity of the plant vide
A. sinking fund depreciation
B. straight line depreciation
C. reducing balances depreciation
D. none of the above
_____________can generate power at unpredictable or uncontrolled times?
A. Solar power plant
B. Tidal power plant
C. Wind power plant
D. Any of the above
The load factor of domestic load is usually____________?
A. 10 to 15%
B. 30 to 40%
C. 50 to 60%
D. 60 to 70%
In which’of the following power plants the maintenance cost is usually high?
A. Nuclear power plant
B. Hydro-electric power plants
C. Thermal power plants
D. Diesel engine power plants
Air will not be the working substance in which of the following?
A. Open cycle gas turbine
B. Closed cycle gas turbine
C. Diesel engine
D. Petrol engine
Low power factor is usually not due to___________?
A. arc lamps
B. induction motors
C. fluorescent tubes
D. incandescent lamp
Which of the following is the disadvantage of a synchronous condenser?
A. High maintenance cost
B. Continuous losses in motor
C. Noise
D. All of the above
Different generating stations use following prime movers?
A. diesel engine
B. hydraulic turbine
C. gas turbine
D. steam turbine
E. any of the above
Generators for peak load plants are usually designed for maximum efficiency at____________?
A. 25 to 50 percent full load
B. 50 to 75 percent full load
C. full load
D. 25 percent overload
____________is the reserved generating capacity available for service under emergency conditions which is not kept in operation but in working order.
A. Hot reserve
B. Cold reserve
C. Spinning reserve
D. Firm power
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