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Nuclear Power Engineering
Comments
Question
The most commonly used nuclear fuel in boiling water reactor is
Options
A. enriched uranium
B. natural uranium
C. plutonium
D. monazite sand
Correct Answer
enriched uranium
Nuclear Power Engineering problems
Search Results
1. Graphite is used in nuclear reactor as
Options
A. insulation lining of the reactor.
B. fuel.
C. lubricant.
D. retarder of neutron velocity.
Show Answer
Scratch Pad
Discuss
Correct Answer: retarder of neutron velocity.
2. How many atoms are present in one gm-atom of an element?
Options
A. 2 x 10
23
B. 6 x 10
23
C. 6 x 10
32
D. 5 x 10
5
Show Answer
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Discuss
Correct Answer: 6 x 10
23
3. Which one is different for the neutral atoms of the isotopes of an element?
Options
A. Atomic weights
B. Atomic numbers
C. Number of protons
D. Number of electrons
Show Answer
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Discuss
Correct Answer: Atomic weights
4. Thorium can be converted into U-233 in a __________ reactor.
Options
A. liquid metal cooled
B. fast breeder
C. thermal
D. swimming pool
Show Answer
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Discuss
Correct Answer: fast breeder
5. Thermal shield is used in high powered nuclear reactors to
Options
A. protect the walls of the reactor from radiation damage.
B. absorb the fast neutrons.
C. slow down the secondary neutrons.
D. protect the fuel element from coming in contact with the coolant.
Show Answer
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Discuss
Correct Answer: protect the walls of the reactor from radiation damage.
6. If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same istotope will be __________ days.
Options
A. 5
B. 10
C. 20
D. 30
Show Answer
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Correct Answer: 10
7. Thermal neutrons which are used to cause the fission of U-235 have energy __________ eV.
Options
A. < 0.025
B. > 1
C. 1-25
D. > 200.
Show Answer
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Correct Answer: < 0.025
8. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).
Options
A. 15
B. 45
C. 65
D. 85
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Correct Answer: 85
9. Uranium ore is currently mined & concentrated at
Options
A. Jadugoda
B. Ghatsila
C. Khetri
D. Alwaye
Show Answer
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Discuss
Correct Answer: Jadugoda
10. Fuel for a nuclear reactor (thermal) is
Options
A. uranium
B. plutonium
C. radium
D. none of these
Show Answer
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Discuss
Correct Answer: uranium
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