Most recently Economics of Power Generation Multiple choice Questions and Answers pdf

41. Air will not be the working substance in which of the following ?
(a)    Closed cycle gas turbine
(b)    Open cycle gas turbine
(c)    Diesel engine
(d)    Petrol engine
Ans: a

42. A nuclear power plant is invariably used as a
(a)    peak load plant
(b)    base load plant
(c)    stand-by plant
(d)    spinning reserve plant
(e)    any of the above
Ans: b

43. power plant is expected to have the longest life.
(a) Steam
(b) Diesel
(c) Hydroelectric
(d) Any of the above
Ans: c

44.     power plant cannot have single unit of 100 MW.
(a) Hydroelectric
(b) Nuclear
(c) Steam
(d) Diesel
(e) Any of the above
Ans: d

45.   Which of the following, in a thermal power plant, is not a fixed cost ?
(a) Fuel cost
(b) Interest on capital
(c) Depreciation
(d) Insurance charges
Ans: a

46. _______ will offer the least load.
(a) Vacuum cleaner
(b) Television
(c) Hair dryer
(d) Electric shaver
Ans: d

47.    In ______ fuel transportation cost is least.
(a)     nuclear power plants
(b)     diesel generating plants
(c)    steam power stations
Ans: a

48.    Which of the following equipment provides fluctuating load ?
(a)     Exhaust fan 
(b)     Lathe machine
(c)    Welding transformer
(d)    All of the above
Ans: c

49.    The increased load during summer months is due to
(a)     increased business activity
(b)     increased water supply
(c)    increased use of fans and air conditioners
(d)    none of the above
Ans: c

50    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
Ans: b

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