Question 31 : Shield is made of _________
1. Iron Metal enclosure
2. Concrete and water
3. Ceramics walls
4. Copper metal
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Question 32 : Select the desirable property of a moderator?
1. Moderator should absorb neutrons but slow down the neutrons as early as possible
2. It should have low thermal conductivity for better heat transfer
3. It shouldn't be chemically unstable
4. It should have low resistance to corrosion
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Question 33 : Which nuclear fuel is usually used in thermal nuclear reactor to create fission?
1. U234
2. U235
3. U236
4. U237
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Question 34 : What makes the best moderators in nuclear power plant?
1. Material with low atomic number
2. Materials with low atomic mass
3. Materials with high atomic number
4. Materials with high mass number
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Question 35 : Control rods are made of __________
1. Cesium
2. Cadmium
3. Tin
4. Gallium
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Question 36 : On which law is the nuclear energy explained?
1. Einstein's law
2. Newton's law
3. Rutherford law
4. Mendeleev law
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Question 37 : How is High Level solidified nuclear wastes (HLW) stored?
1. Concrete tanks
2. Canisters
3. Packed rock salt
4. Soil bins
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Question 38 : Select the incorrect statement about PWR.
1. High primary circuit pressure requires a strong pressure vessel
2. Corrosion is less in PWR
3. During fuel charging in PWR, the reactor has to be shut down at least for a month
4. PWR results in uneven heating
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Question 39 : LLW stands for ____________
1. Low Level Water
2. Low Laser width
3. Low Level Waste
4. Loss of Levels in water
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Question 40 : Reactor power is directly proportional to neutron density?
1. True
2. False
3.
4.
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