Power System - I (3140914) MCQs

MCQs of Conventional Generation, Load Curves and Tariffs

Showing 251 to 260 out of 425 Questions
251.
Graphite is used in nuclear power plant as a
(a) Fuel
(b) Coolant
(c) Moderator
(d) Electrode
Answer:

Option (c)

252.
Which of the following materials cannot be used as a moderator?
(a) Deuterium
(b) Graphite
(c) Heavy water
(d) Beryllium
Answer:

Option (a)

253.
Consider the following moderators used in nuclear reactors:
1. Graphite
2. Beryllium
3. Heavy water
There correct sequence in increasing order of their neutron absorption cross-section is
(a) 1, 3, 2
(b) 2, 1, 3
(c) 3, 1, 2
(d) 3, 2, 1
Answer:

Option (d)

254.
Which material is used in controlling chain reaction in a nuclear reactor?
(a) Thorium
(b) Heavy water
(c) Boron
(d) Beryllium
Answer:

Option (c)

255.
Control rods is used in nuclear reactors are made of
(a) Zirconium
(b) Boron
(c) Beryllium
(d) Lead
Answer:

Option (b)

256.
In a nuclear reactor, chain reaction is controlled by introducing
(a) Iron rods
(b) Cadmium rods
(c) Graphite rods
(d) Brass rods
Answer:

Option (b)

257.
Heavy water is used in nuclear power plant as
(a) Fuel
(b) Coolant
(c) Moderator
(d) Both (b) and (c)
Answer:

Option (d)

258.
Which of the following materials can be used as a coolant?
(a) Heavy water
(b) CO2
(c) Helium
(d) Any of above
Answer:

Option (d)

259.
The function of reflector in a nuclear reactor is to
(a) Bounce back most of the neutrons that escape from the fuel core
(b) Reduce the speed of the neutrons
(c) Stop the chain reaction
(d) All of above
Answer:

Option (a)

260.
Reflectors of a nuclear reactor are made of
(a) Cast iron
(b) Beryllium
(c) Steel
(d) Boron
Answer:

Option (b)

Showing 251 to 260 out of 425 Questions