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Economics of Power Generation - Interview Questions and Answers

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81. The expected useful life of an hydroelectric power station is around
A. 15 years
B. 30 years
C. 60 years
D. 100 years
Explanation:
82. An alternator coupled to a _____ runs at slow speed, as compared to as compared to others.
A. diesel engine
B. hydraulic turbine
C. steam turbine
D. gas turbine
Explanation:
83. For the same cylinder dimensions and speed, which of the following engine will produce least power ?
A. Supercharged engine
B. Diesel engine
C. Petrol engine
D. All of the above engines will equal power
Explanation:
84. The primary reason for low power factor is supply system is due to installation of
A. induction motors
B. synchronous motors
C. single phase motors
D. d.c. motors
Explanation:
85. Which of the following plants is almost inevitably used as base load plant ?
A. Diesel engine plant
B. Gas turbine plant
C. Nuclear power plant
D. Pumped storage plant
Explanation:
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