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Electrical MCQ™
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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
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In India production and distribution of electrical energy is confined to
(A) Private sector
(B) Public sector (C) Government sectors (D) Joint sector
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________ will be least affected due to charge in supply voltage frequency.
(A) Electric clock
(B) Mixer grinder (C) Ceiling fan (D) Room heater
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Generating capacity connected to the bus bars and ready to take load when switched on is known as
(A) Firm power
(B) Cold reserve (C) Hot reserve (D) Spinning reserve
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A nuclear power plant is invariably used as a
(A) Peak load plant (B) Base load plant (C) Standby plant (D) Spinning reserve plant
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Ships are generally powered by
(A) Nuclear power plants
(B) Hydraulic turbines (C) Diesel engines (D) Steam accumulators
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Salvage value of the plant is always
(A) Positive
(B) Negative (C) Zero (D) Any of the above
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Load curve is useful in deciding the
(A) Operating schedule of generating units
(B) Sizes of generating units (C) Total installed capacity of the plant (D) All of the above
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n two part tariff, variation in load factor will affect
(A) Fixed charges
(B) Operating or running charges (C) Both (A) and (B) (D) Either (A) or (B)
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A consumer has to pay lesser fixed charges in
(A) Flat rate tariff
(B) Two part tariff (C) Maximum demand tariff (D) Any of the above
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The load factor of domestic load is usually
(A) 10 to 15 %
(B) 30 to 40 % (C) 50 to 60 % (D) 60 to 70 %
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Following power plant has instant starting
(A) Nuclear power plant
(B) Hydro power plant (C) Diesel power plant (D) Both (B) and (C)
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Which of the following place is not associated with nuclear power plants in India?
(A) Narora
(B) Tarapur (C) Kota (D) Bangalore
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Direct conversion of heat into electric power is possible through
(A) Fuel cell
(B) Batteries (C) Thermionic converter (D) All of the above
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_______ will offer the least load.
(A) Vacuum cleaner (B) Television (C) Hair dryer (D) Electric shaver
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By the use of which of the following power factor can be improved?
(A) Phase advancers
(B) Synchronous compensators (C) Static capacitors (D) Any of the above
