economics of power generation MCQs – Page 5

Practise focused economics of power generation questions with marked answers for exam preparation and subject revision.

economics of power generation Mcqs
81. Load curve is useful in deciding the_____________?
comments icon0

A. operating schedule of generating units

B. sizes of generating units

C. all of the above

D. total installed capacity of the plant

82. Air will not be the working substance in which of the following?
comments icon0

A. Petrol engine

B. Open cycle gas turbine

C. Closed cycle gas turbine

D. Diesel engine

83. Annual depreciation of the plant it proportional to the earning capacity of the plant vide
comments icon0
A. reducing balances depreciation

B. none of the above

C. sinking fund depreciation

D. straight line depreciation

84. _________offers the highest electric load.
comments icon0

A. Vacuum cleaner

B. Washing machine

C. Toaster

D. Television set

85. __________ industry has the least power consumption per ton of product?
comments icon0

A. Caustic soda

B. Soap

C. Vegetable oil

D. Sugar

86. In power plants insurance cover is provided for which of the following?
comments icon0

A. Equipment only

B. Skilled workers only

C. All of the above

D. Unskilled workers only

87. A load curve indicates___________?
comments icon0
A. average kWh (kW) energy consumption during the period

B. average power used during the period

C. none of the above

D. either of the above

88. Salvage value of the plant is always____________?
comments icon0
A. any of the above

B. negative

C. zero

D. positive

89. Direct conversion of heat into electrical energy is possible through____________?
comments icon0

A. none of the above

B. fuel cells

C. MHD generators

D. solar cells

90. Annual depreciation as per straight line method, is calculated by__________?
comments icon0

A. the capital cost divided by number of year of life

B. increasing a uniform sum of money per annum at stipulated rate of interest

C. the capital cost minus the salvage value, is divided by the number of years of life

D. none of the above

91. Which of the following equipment provides fluctuating load?
comments icon0

A. Lathe machine

B. Exhaust fan

C. Welding transformer

D. All of the above

92. Which of the following source of power is least reliable?
comments icon0

A. Geothermal power

B. Wind power

C. Solar energy

D. iMHD
93. Maximum demand on a power plant is_________________?
comments icon0
A. the greatest of all short time interval averaged demand during a period

B. instantaneous maximum value of kVA supplied during a period

C. both A. or B.

D. none of the above

94. ____________is the reserved generating capacity available for service under emergency conditions which is not kept in operation but in working order.
comments icon0

A. Hot reserve

B. Cold reserve

C. Spinning reserve

D. Firm power

95. power plant is expected to have the longest life?
comments icon0

A. Diesel

B. Hydroelectric

C. Any of the above

D. Steam

96. Power plant having maximum demand more than the installed rated capacity will have utilization factor?
comments icon0

A. none of the above

B. equal to unity

C. less than unity

D. more than unity
97. Which of the following is the disadvantage due to low power factor?
comments icon0

A. Increased transmission losses

B. Poor voltage regulation

C. All of the above

D. High cost of equipment for a given load

98. Following power plant has instant starting?
comments icon0

A. nuclear power plant

B. hydro power plant

C. diesel power plant

D. both B and C

E. none of the above