Nuclear Power Plant Design Engineering MCQ - Set 09 - ObjectiveBooks

Nuclear Power Plant Design Engineering MCQ - Set 09

Practice Test: Question Set - 09


1. Pressure in a Pressurized Water Reactor (PWR) is used for
    (A) Maintaining constant pressure in the primary cooling circuit under varying loads
    (B) Superheating the steam
    (C) Pressurizing the water in the primary coolant circuit
    (D) None of these

2. The half life period of a radioactive element depends upon the
    (A) Temperature
    (B) Pressure
    (C) Amount of element present
    (D) None of these

3. The main ore of uranium is
    (A) Pitchblende
    (B) Monazite sand
    (C) Cassiterite
    (D) Chalcopyrite

4. The half life period of a radioactive element depends on its
    (A) Temperature
    (B) Pressure
    (C) Amount
    (D) None of these

5. Commercial power generation from fusion reactor is not yet possible, because
    (A) It is difficult to control fusion reaction
    (B) The fuel required (e.g. deuterium and tritium) is scarce
    (C) It is difficult to initiate fusion reaction
    (D) Quantity of fuel required for initiating fusion reaction is prohibitively high

6. Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.
    (A) Fuel elements
    (B) Operating personnels
    (C) Walls of the reactor
    (D) None of these

7. A fast breeder reactor
    (A) Uses natural uranium as fuel
    (B) Does not require a moderator
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

8. H2 is a better coolant than CO2, due to it’s relatively
    (A) Lower density
    (B) Higher specific heat
    (C) Non-reactivity to uranium
    (D) Lower neutron capture cross-section

9. Uranium ore is currently mined & concentrated (in India) at
    (A) Jadugoda
    (B) Ghatshila
    (C) Khetri
    (D) Alwaye

10. Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.
    (A) 1
    (B) 2200
    (C) 3 × 1011
    (D) 9 × 1021

11. Which of the following accounts for the maximum energy release in the nuclear fission process?
    (A) Kinetic energy of fission products
    (B) Radioactive decay of fission products
    (C) Instantaneous release of γ-rays
    (D) Kinetic energy of neutrons

12. Pick out the wrong statement.
    (A) α-particle emission from a radioactive element makes it electrically negative
    (B) β-particle emission from a radioactive element makes it electrically positive
    (C) A radioactive element having a half life period of 20 years will completely disintegrated in 40 years
    (D) The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration

13. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
    (A) 159
    (B) 1837
    (C) 2537
    (D) 10000

14. __________ moderator is used in a fast breeder reactor.
    (A) Graphite
    (B) Heavy water
    (C) Beryllium
    (D) No

15. The second underground nuclear test was conducted by India at
    (A) Jaisalmer
    (B) Pokhran
    (C) Kalpakkam
    (D) Narora

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