Power Plant Engineering Objective Questions and Answers - Set 02 - ObjectiveBooks

Power Plant Engineering Objective Questions and Answers - Set 02

Practice Test: Question Set - 02

1. The process by which a heavy nucleus is spitted into two light nuclei is known as
    (A) Splitting
    (B) Fission
    (C) Fusion
    (D) Disintegration

2. Which of the following is more appropriate for a moderator? One which
    (A) Does not absorb neutrons
    (B) Absorbs neutrons
    (C) Accelerates neutrons
    (D) Eats up neutrons

3. A nuclear reactor is said to be critical when the neutron population in the reactor core is
    (A) Rapidly increasing leading to the point of explosion
    (B) Decreasing from the specified value
    (C) Reduced to zero
    (D) Constant

4. The most commonly used moderator in nuclear plants is
    (A) Heavy water
    (B) Concrete and bricks
    (C) Graphite and concrete
    (D) Graphite

5. Reactors for propulsion applications are designed for
    (A) Any form of uranium
    (B) Natural uranium
    (C) Enriched uranium
    (D) Plutonium

6. The following present serious difficulty in designing reactor shield
    (A) Alpha particles
    (B) Beta particles
    (C) Thermal neutrons
    (D) Fast neutrons and gamma rays

7. Ferrite material is
    (A) The most fissionable material
    (B) The basic fuel for nuclear paints
    (C) Basic raw material for nuclear plants
    (D) The material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material

8. Reflector in nuclear power plants _________ neutron leakage.
    (A) Increases
    (B) Decreases
    (C) Have no effect on
    (D) None of these

9. Effective moderators are those materials which contain
    (A) Light weight atoms
    (B) Heavy weight atoms
    (C) Critical atoms
    (D) Zero weight atoms

10. The fuel needed, with reflector in nuclear power plant, in order to generate sufficient neutrons to sustain a chain reaction, would be
    (A) More
    (B) Less
    (C) Same
    (D) Zero

11. Nuclear reactors are used
    (A) To produce heat for thermoelectric power
    (B) To produce fissionable material
    (C) To propel ships, submarines, aircrafts
    (D) All of these

12. The main interest of shielding in nuclear reactor is protection against
    (A) X-rays
    (B) Infrared rays
    (C) Neutrons and gamma rays
    (D) Electrons

13. 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

14. The coolant used in boiling water reactor is
    (A) CO2
    (B) Pressurised water
    (C) Mixture of water and steam
    (D) Liquid metal

15. A moderator
    (A) Absorbs neutrons
    (B) Does not absorb neutrons
    (C) Accelerates neutrons
    (D) None of these

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