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Power Plant Engineering - section-1
  1. Breeder reactors employ liquid metal coolant because it

    2. A.

     Acts as good moderator
    B.

     Produces maximum steam
    C.

     Transfers heat from core at a fast rate
    D.

     Breeds neutrons

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  2. A pressurized water reactor employs pressurizes for the following application

    3. 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 sub cooled water at high pressure

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  3. Moderator in nuclear plants is used to

    4. A.

     Reduce temperature
    B.

     Extract heat from nuclear reaction
    C.

     Control the reaction
    D.

     Cause collision with the fast moving neutrons to reduce their speed

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  4. Reflector in nuclear plants is used to

    5. A.

     Return the neutrons back into the core
    B.

     Shield the radioactivity completely
    C.

     Check pollution
    D.

     Conserve energy

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  5. The presence of reflector in nuclear power plants results in

    6. A.

     Increased production of neutrons
    B.

     Complete absorption of neutrons
    C.

     Controlled production of neutrons
    D.

     Decreased leakage of neutrons

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  6. A moderator generally used in nuclear power plants is

    7. A.

     Graphite
    B.

     Heavy water
    C.

     Concrete
    D.

     Graphite and concrete

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  7. The primary fuel used in nuclear power plants is

    8. A.

     U₂₃₅
    B.

     U₂₃₈
    C.

     Pu₂₃₉
    D.

     Pu₂₃₃

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  8. The secondary fuel used in nuclear power plants is

    9. A.

     U₂₃₃ and Pu₂₃₉
    B.

     U₂₃₅ and Th₂₃₂
    C.

     U₂₃₅ and Pu₂₃₈
    D.

     U₂₃₃ and Pu₂₃₈

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  9. Boiling water reactor employs

    10. A.

     Boiler
    B.

     Direct cycle of coolant system
    C.

     Double circuit system of coolant cycle
    D.

     Multi passes system

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  10. Ideally the neutron flux in reactor should be

    11. A.

     Maximum in centre and zero at side
    B.

     Maximum at side and zero in canter
    C.

     Uniform throughout
    D.

     Zero throughout

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