Nuclear Power Engineering Mcqs for Chemical - Set 2

1)   Which of the following factors is the most important in the site selection for a nuclear power plant ?

a. Absence of earthquake prone zone in nearby areas
b. Abundant availability of water
c. Remotely located from residential areas
d. Proximity to fuel source
Answer  Explanation 

ANSWER: Absence of earthquake prone zone in nearby areas

Explanation:
No explanation is available for this question!


2)   Graphite is used in nuclear reactor as_____________________?

a. Insulation lining of the reactor
b. Fuel
c. Lubricant
d. Retarder of neutron velocity
Answer  Explanation 

ANSWER: Retarder of neutron velocity

Explanation:
No explanation is available for this question!


3)   Which of the following may not need a moderator ?

a. Candu reactor
b. Fast breeder reactor
c. Homogeneous reactor
d. Pressurised water reactor
Answer  Explanation 

ANSWER: Fast breeder reactor

Explanation:
No explanation is available for this question!


4)   Net efficiency of ordinary light water cooled nuclear reactor is about _____________ percent?

a. 32
b. 52
c. 72
d. 88
Answer  Explanation 

ANSWER: 32

Explanation:
No explanation is available for this question!


5)   Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?

a. < 0.025
b. > 1
c. 1-25
d. > 200
Answer  Explanation 

ANSWER: < 0.025

Explanation:
No explanation is available for this question!


6)   In nuclear reactions, ______________ number is conserved?

a. Mass
b. Atomic
c. Both A. & B.
d. Neither A. nor B.
Answer  Explanation 

ANSWER: Both A. & B.

Explanation:
No explanation is available for this question!


7)   Which of the following ores contains maximum percentage of uranium ?

a. Carnotite
b. Thorium
c. Rescolite
d. Pitchblende
Answer  Explanation 

ANSWER: Pitchblende

Explanation:
No explanation is available for this question!


8)   Plutonium________________?

a. Is recovered from spent fuel from thermal nuclear reactor
b. Has much lower melting point (640°C ) compared to thorium (1690°C)
c. Both A. and B.
d. Neither A. nor B.
Answer  Explanation 

ANSWER: Both A. and B.

Explanation:
No explanation is available for this question!


9)   Tarapur (INDIA) atomic power station____________________?

a. Has two boiling water reactors of American design
b. Has an installed capacity of 400 MW
c. Is the first power reactor in India, which became critical in 1969
d. All A., B. and C.
Answer  Explanation 

ANSWER: All A., B. and C.

Explanation:
No explanation is available for this question!


10)   Thorium-232 (a fertile material) on absorption of a neutron gets converted into ___________ , which is a fissile material?

a. Thorium-233
b. Uranium-235
c. Uranium-233
d. Plutonium-239
Answer  Explanation 

ANSWER: Uranium-233

Explanation:
No explanation is available for this question!


11)   Final product of uranium extraction plant at Jadugoda (Bihar) is________________?

a. Uranium
b. Uranium oxide
c. Uranium carbide
d. Magnesium diuranate
Answer  Explanation 

ANSWER: Magnesium diuranate

Explanation:
No explanation is available for this question!


12)   β-rays emission in radioactive disintegration is always accompanied by the emission of____________________?

a. γ-rays
b. α-rays
c. Neutrons
d. None of these
Answer  Explanation 

ANSWER: γ-rays

Explanation:
No explanation is available for this question!


13)   Which is used as a coolant in nuclear reactor due to its high capture cross-section ?

a. H2
b. N2
c. He
d. CO2
Answer  Explanation 

ANSWER: H2

Explanation:
No explanation is available for this question!


14)   The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the________________?

a. Fuel cost per unit power generated is less
b. Thermal efficiency of the former is higher
c. Maintenance cost of the former is less
d. None of these
Answer  Explanation 

ANSWER: Fuel cost per unit power generated is less

Explanation:
No explanation is available for this question!


15)   Which of the following is not a good moderating material ?

a. Concrete
b. Boron
c. 18/8 stainless steel
d. All A., B. and C.
Answer  Explanation 

ANSWER: All A., B. and C.

Explanation:
No explanation is available for this question!


16)   Percentage of U-238 in natural uranium is around__________________?

a. 0.71
b. 99.29
c. 0.015
d. 29.71
Answer  Explanation 

ANSWER: 99.29

Explanation:
No explanation is available for this question!


17)   Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of___________________?

a. High carbon steel
b. Molybdenum
c. Zircaloy
d. Boron or cadmium
Answer  Explanation 

ANSWER: Boron or cadmium

Explanation:
No explanation is available for this question!


18)   Which of the following is not a naturally occurring nuclear fuel ?

a. Uranium-238
b. Thorium-233
c. Plutonium-239
d. None of these
Answer  Explanation 

ANSWER: Plutonium-239

Explanation:
No explanation is available for this question!


19)   Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor ?

a. Molten sodium cooled
b. CO2 gas cooled
c. Pressurised water
d. Boiling water
Answer  Explanation 

ANSWER: Boiling water

Explanation:
No explanation is available for this question!


20)   Emission of β-particles during radioactive decay of a substance is from__________________?

a. Innermost shell
b. Nucleus
c. Outermost shell
d. None of these
Answer  Explanation 

ANSWER: Nucleus

Explanation:
No explanation is available for this question!