Nuclear Power Engineering Exam Questions - Set 14 - ObjectiveBooks

Nuclear Power Engineering Exam Questions - Set 14

Practice Test: Question Set - 14

1. The most abundant isotope of natural uranium is
    (A) 92U238
    (B) 92U235
    (C) 92U234
    (D) None of these

2. A fast breeder reactor
    (A) Utilizes fast neutrons for causing fission
    (B) Converts fertile material (e.g., U-238) into fissile material (Pu-239)
    (C) Normally employs molten sodium as coolant
    (D) All (a), (b) and (c)

3. A moderator __________ the neutrons.
    (A) Slows down
    (B) Absorbs
    (C) Accelerates
    (D) Reflects

4. Which is the most commonly used molten metal for cooling of nuclear reactors?
    (A) Calcium
    (B) Sodium
    (C) Mercury
    (D) Zinc

5. Extraction of uranium from its ore is done by __________ method.
    (A) Chemical
    (B) Pyrometallurgical
    (C) Physical beneficiation
    (D) Electrometallurgical

6. Percentage of the heavy water in ordinary water is around
    (A) 0.015
    (B) 7.54
    (C) 0.71
    (D) 32.97

7. Pick out the wrong statement.
    (A) The ratio of the density of the 'nucleus' to that of the 'atom' is 1012
    (B) α-particle is identical with a doubly charged helium ion
    (C) The mass of deuterium atom is half that of helium atom
    (D) Gamma rays are high energy electrons

8. The 92U238 emits an a-particle. The product is
    (A) 90U234
    (B) 90U238
    (C) 90U236
    (D) 92U236

9. The atomic number of a radioactive element is not changed, when it emits __________ rays.
    (A) α
    (B) β
    (C) γ
    (D) α & β

10. Coolant used in a boiling water reactor is
    (A) Hydrogen gas
    (B) Water
    (C) Steam
    (D) A mixture of water & steam

11. Isotopes of an element have different
    (A) Mass number
    (B) Electronic configuration
    (C) Nuclear charge
    (D) Chemical properties

12. The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is
    (A) 1
    (B) 0.5
    (C) 2
    (D) 4

13. The ratio of atomic radius to its nuclear radius is about
    (A) 105
    (B) 108
    (C) 1012
    (D) 1015

14. Fast breeder Test Reactor (FBTR) is located at
    (A) Kalpakkam (near Madras)
    (B) Kota (in Rajasthan)
    (C) BARC (Trombay)
    (D) Tarapur (in Maharashtra)

15. Out of the following places, heavy water plant is not located at
    (A) Baroda
    (B) Ramagundam
    (C) Talcher
    (D) Tuticorin

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