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55.

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

56.

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

57.

Reactors for propulsion applications use

A.	natural uranium	B.	molten lead
C.	any form of uranium	D.	thorium

58.

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

59.

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

60.

In triggering fission, which type of neutrons are more effective

A.	fast	B.	slow
C.	in bulk	D.	static

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