Power Plant Special MCQ Part 1
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Power Plant Special MCQ Part One
1. Combined cycle power plants may need
(a) MHD generator
(b) Thermionic converter
(c) Thermoelectric generator
(d) All of the above
Answer-D
2.Depreciation charges are high in the case of
(a) Thermal plant
(b) Diesel plant
(c) Hydroelectric plant
(d) Wind power plant
Answer-A
3.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
Answer-A
Power Plant Special MCQ Part 1
4.The overall efficiency of a thermal power plant is equal to
(a) Ranking cycle efficiency
(b) Carnot cycle efficiency
(c) Regenerative cycle efficiency
(d) Boiler efficiency X Turbine efficiency X Generator efficiency
Answer-D
5.Which of the following coals has the highest calorific value?
(a) Peat
(b) Lignite
(c) Bituminous
(d) Anthracite
Answer-D
6.Compounding of steam is done for
(a) Reducing the work done
(b) Increasing the rotor speed
(c) Reducing the rotor speed
(d) Balancing the turbine
Answer-C
7.Major share of power generated in India is through
(a) Thermal power plants
(b) Nuclear power plants
(c) Hydro-electric power plants
(d) Solar energy
Answer-A
Power Plant Special MCQ Part 1
8.The advantage of using pulverized fuel include
(a) Higher boiler efficiency
(b) Easy and complete combustion
(c) Low air requirement
(d) All of these
Answer-D
9.In a thermal power plant, feed water heaters, super heater and air preheaters are mainly
used to
(a) Have a better dust removal in the plant
(b) Have a better Ash removal in the plant
(c) Increase the efficiency of the plant
(d) None of the above
Answer-C
10.Through which source is maximum electricity generated in the world?
(a) Water
(b) Nuclear power
(c) Coal
(d) Solar power
Answer-C
11.Coal used in power plant is also known as
(a) Steam coal
(b) Charcoal
(c) Coke
(d) Soft coal
Answer-A
Power Plant Special MCQ Part 1
12.The cost of the fuel transportation is minimum in
(a) Steam power plant
(b) Diesel power plant
(c) hydro-electric plant
(d) Coal based power plant
Answer-C
13.In thermal power plant, the pressure of working cycle is developed by
(a) Condense
(b) Super heater
(c) Feed water pump
(d) Turbine
Answer-C
14.The pH value of water used for boiler of thermal power plant is
(a) Unity
(b) 7
(c) Slightly more than 7
(d) 10
Answer-C
15.For the proper combustion of fuel in a thermal power plant, a proper circulation of air is also needed. The same is provide with the help of
(a) Draft fan
(b) Economiser
(c) Condenser
(d) Cooling Tower
Answer-A
Power Plant Special MCQ Part 1
16.Super heater is employed to
1. Remove moisture from the vapours
2. Increase the temperature of vapours
3. Heat the feed water
Which of the given statements is incorrect?
(a) 2 and 3
(b) Only 3
(c) 1 and 2
(d) Only 1
Answer-C
17.What is separated with the help of magnetic separators in a coal preparation plant?
(a) Pebbles
(b) Iron particles
(c) Dust
(d) Sand
Answer-B
18.A condenser in a thermal power plant condenses steam coming out of
(a) Boiler
(b) Turbine
(c) Economiser
(d) Super heater
Answer-B
19. In a thermal power plant, which is true for a superheater?
(a) In a superheater pressure rises and temperature remains the same
(b) In a superheater, temperature rises and pressure drops
(c) In a superheater, pressure rises and temperature drops
(d) In a superheater, temperature rises and pressure remains unchanged
Answer-D
20. Which is not fundamental element of cogeneration plant?
(a) Prime mover
(b) Electricity generator
(c) Heat recovery system
(d) Power factor improvement system
Answer-D
Power Plant Special MCQ Part 1