51. Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal
(a) centrifugal
(b) axial
(c) reciprocation
(d) electromagnetic
(e) diaphragm.
Ans: d
52. Which of the following is the primary fuel
(a) Ulii
(b) U
(c) U238
(d) Pu:
(e) Pu
Ans: b
53. Which of the following is secondary fuel
(a) Th232andU238
(b) U233andPu239
(c) U233andPu238
Ans: c
54. A pressurized water reactor employs pressurizer for the following application
(a) to maintain constant pressure in primary circuit under varying load
(b) to Supply high pressure steam
(c) to increase pressure of water in primary circuit
(d) to provide subcooled water at high pressure
(e) all of the above.
Ans: a
55. Which of the following can be used as a coolant in nuclear plant
(a) light or heavy water
(b) molten lead
(c) carbon dioxide
(d) freon
(e) carbon tetrachloride.
Ans: a
56. Reactors for propulsion applications use
(a) natural uranium
(b) molten lead
(c) any form of uranium
(d) thorium
(e) plutonium.
Ans: b
57. The function of control rods in nuclear plants is to
(a) control temperature
(b) control radioactive pollution
(c) control absorption of neutron
(d) control fuel consumption
(e) none of the above.
Ans: c
58. Breeder reactors employ liquid metal coolant because it
(a) acts as good moderator
(b) produces maximum steam
(c) transfers heat from core at a fast rate
(d) breeds neutrons
(e) increases rate of reaction in core.
Ans: c
59. In triggering fission, which type of neutrons are more effective
(a) fast
(b) slow
(c) in bulk
(d) static
(e) activated.
Ans: b
60. For economical operation of a nuclear plant
(a) used fuel should be reprocessed
(b) moderator should be used
(c) coolant should be employed
(d) control rods should be used
(e) reflector should be used.
Ans: a
(a) centrifugal
(b) axial
(c) reciprocation
(d) electromagnetic
(e) diaphragm.
Ans: d
52. Which of the following is the primary fuel
(a) Ulii
(b) U
(c) U238
(d) Pu:
(e) Pu
Ans: b
53. Which of the following is secondary fuel
(a) Th232andU238
(b) U233andPu239
(c) U233andPu238
Ans: c
54. A pressurized water reactor employs pressurizer for the following application
(a) to maintain constant pressure in primary circuit under varying load
(b) to Supply high pressure steam
(c) to increase pressure of water in primary circuit
(d) to provide subcooled water at high pressure
(e) all of the above.
Ans: a
55. Which of the following can be used as a coolant in nuclear plant
(a) light or heavy water
(b) molten lead
(c) carbon dioxide
(d) freon
(e) carbon tetrachloride.
Ans: a
56. Reactors for propulsion applications use
(a) natural uranium
(b) molten lead
(c) any form of uranium
(d) thorium
(e) plutonium.
Ans: b
57. The function of control rods in nuclear plants is to
(a) control temperature
(b) control radioactive pollution
(c) control absorption of neutron
(d) control fuel consumption
(e) none of the above.
Ans: c
58. Breeder reactors employ liquid metal coolant because it
(a) acts as good moderator
(b) produces maximum steam
(c) transfers heat from core at a fast rate
(d) breeds neutrons
(e) increases rate of reaction in core.
Ans: c
59. In triggering fission, which type of neutrons are more effective
(a) fast
(b) slow
(c) in bulk
(d) static
(e) activated.
Ans: b
60. For economical operation of a nuclear plant
(a) used fuel should be reprocessed
(b) moderator should be used
(c) coolant should be employed
(d) control rods should be used
(e) reflector should be used.
Ans: a
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