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Objective Type Question or MCQ of Power Generation page-12

111. The cross-sectional area of the penstock will be smaller if the velocity of water is to be

a) High
b) Low
c) Under pressure
d) Both (b) and (c) above

Ans: (a)

112. In a nuclear power station, moderator is used to

a) Stop the chain reaction
b) Accelerate the speed of neutrons
c) Reduce the speed of neutrons
d) Absorb neutrons

Ans: (c)

113. Water hammer is developed in

a) Turbine
b) Surge tank
c) Dam
d) Penstock

Ans: (b)

114. Commonly used atomic fuels are

a) Uranium, U-235
b) Thorium, Th-232
c) Plutonium, Pu-239
d) All of these

Ans: (d)

115. Effect of water hammer is reduced by using

a) Surge tank
b) An anvil
c) Spillway
d) Overhead tank

Ans: (a)

116. The heat produced by 1 kg of atomic fuel is equal to that produced by coal of weight

a) 1 ton
b) 100 tons
c) 1000 tons
d) 4237 tons

Ans: (d)

117. Steam produced by geothermal field is

a) Dry
b) Wet
c) Both (a) and (b) above
d) None of these

Ans: (c)

118. Coolants used in reactors are

a) Air, hydrogen, helium
b) Water, graphite
c) Liquid metals, lead-bismuth alloys
d) All of these

Ans: (d)

119. Water steam mixture in geothermal field is separated by the use of

a) Filters
b) Evaporators
c) Bypass valve
d) Centrifugal action

Ans: (d)

120. Reactor used in nuclear reactor servers to

a) Reflect back the escaping neutrons
b) Improve its economy
c) Both (a) and (b) above
d) None of these

Ans: (a)

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