200 Important Electrical Power Generation MCQ Question and Answer | PDF Free Download
1.For high head and low discharge, the water turbine used is
- APelton Wheel
- BKaplan Turbine
- CFrancis Turbine
- DPropeller Turbine
2.An impulse turbine
- AIs most suited for low head and high discharge power plants
- BOperates by initial complete conversion to kinetic energy
- CMakes use of a draft tube
- DAlways operates submerged
3.The maximum head of a Kaplan turbine is limited to
- A25 m
- B70 m
- C125 m
- DNone of the above
4.In India, pumped storage power plant
- ADoes not exist at all
- BExists is Rajasthan alone
- CExists in Kadampurai (TN)
- DExists in Haryana
5.Rotameter is used for measuring
- AFluid discharge
- BFluid density
- CFluid viscosity
- DAll of the above
6.A steam power station needs space
- ALess than that required by the diesel power station of the same output.
- BLess than that required by atomic power station of the same output.
- CLess than that required by hydropower station of the same capacity.
- DLess than that required by a gas turbine power station of the same output.
7.The Operating cost of steam power station is
- ALess than that of nuclear power plants.
- BLess than that of diesel/gas turbine power plants.
- CLess than that of hydroelectric power plants.
- DIs the same as that of nuclear power plants.
8.The public sector unit associated with the manufacturing of steam power plant equipment in India is
- ABharat Heavy Electricals Ltd.
- BN.T.P.C.
- CHeavy Engineering Corporation
- DNeyveli Lignite Corporation
9.The Public sector undertaking associated with erection and commissioning of steam power plants in India is
- AIndian Electricity Authority
- BNational Thermal Power Corporation Ltd.
- CBharat Coking Coal Ltd.
- DCoal Indian Ltd.
10.On which one of the following cycles does a modern steam power plant work?
- ACarnot cycle
- BRankine cycle
- COtto cycle
- DBell-Coleman cycle
11.Rankine cycle efficiency of a steam power plant is in the range of
- A20 - 30%
- B30 - 45%
- C45 - 60%
- D60 - 80%
12.What is the approximate efficiency of a normal thermal power station?
- A30 ? 40%
- B45 ? 55%
- C20 ? 25%
- D60 ? 70%
13.Which of the following contributes to the Rankine cycle efficiency improvement in a steam power plant?
- AUse of high pressure
- BReheat of steam at intermediate stages
- CUse of steam for heating of boiler feed water
- DAll of the above
14.The efficiency of steam power plant can be improved by
- AUsing large quantity of water
- BBurning large quantity of coal
- CUsing high pressure and high temperature steam
- DDecreasing the load on the plant
15.The average load factor of thermal power plants in India is
- A100%
- B80 ? 95%
- C50 ? 60%
- D35 ? 45%
16.As the size of a thermal generating unit increases, the capital cost per kW of installed capacity
- AIncreases
- BDecreases
- CRemains the same
- DMay increase or decrease
17.In a thermal power plant, the feed water coming to the economizer is heated using
- AHP steam
- BLP steam
- CDirect heat in the furnace
- DFlue gases
18.In bleeder turbines, part of the steam is extracted for
- ACondensation
- BReheating
- CFeed water heating
- DSecondary air heating
19.Which of the following is not a fire tube boiler?
- ABabcock and Wilcox
- BLancashire
- CLocomotive
- DCochron
20.Water is supplied to the boiler at
- AAtmospheric pressure
- BMore that steam pressure on the boiler
- CSlightly more than atmospheric pressure
- DAny pressure