Power system MCQ #12
Power system MCQ 169 to 172:
169) Which material is used in controlling chain reaction in a nuclear reactor?
169) Which material is used in controlling chain reaction in a nuclear reactor?
(a)
Thorium
(b) Heavy
water
(c) Boron
(d)
Beryllium
170) Reflectors of a nuclear reactor are made of
(a) cast
iron
(b) beryllium
(c) steel
(d) boron
171) Which one of the following is employed as a moderator
by CANDU type of slow thermal nuclear reactor?
(a) water
(b) heavy
water
(c)
graphite
(d)
beryllium
172) Which one of the following fuels is used by the slow
thermal reactors for power generation?
(a) U235
(b) U238
(c) TH232
(d) PU239
ANSWER: | 169-c | 170-b | 171-b | 172-a |
Power system MCQ 173 to 176:
Power system MCQ 173 to 176:
173) Large size steam plants and nuclear plants are
suitable for
(a) peak
load
(b)
intermediate load
(c) base
load
(d) both
base and peak load
174) The average ash content in Indian coal is around
(a) 50%
(b) 20%
(c) 10%
(d) 5%
175) The coal has highest ash content is
(a) lignite
(b)
coking coal
(c)
bituminous coal
(d) steam
coal
176) In small power plants, coal is unloaded by means of
(a) belt
conveyor
(b) coal
accelerators
(c) lift
trucks
(d) all
of the above
ANSWER: | 173-c | 174-b | 175-a | 176-b |
Power system MCQ 177 to 180:
Power system MCQ 177 to 180:
177) Pulverized coal is
(a) non-smoking
coal
(b) coal
free from ash
(c) coal
broken in fine particles
(d) coal
which burns for long time
178) Which of the following enters the superheater?
(a)
superheated steam
(b) wet
steam
(c) hot water
(d) cold
water
179) In a steam power plant water is used for cooling
purpose in
(a)
economizer
(b) condenser
(c)
superheater
(d)
electrostatic precipitator
180) The overall efficiency of a thermal power plant is
equal to
(a) that
of Rankine cycle
(b) product
of boiler efficiency, turbine efficiency and generator efficiency
(c) that
of binary vapor cycle
(d) that
of regenerative cycle
ANSWER: | 177-c | 178-b | 179-b | 180-b |
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