Question 11 : Thorium can be converted into U-233 in a __________ reactor.
1. fast breeder
2. liquid metal reactor
3. Curtis reactor
4. none of the mentioned
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Question 12 : Commercial power generation from fusion reactor is not yet possible, because
1. it is hard to control fission
2. it is hard to initiate fission
3. it is a non-periodic process
4. none of the mentioned
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Question 13 : Which is the most commonly used molten metal for cooling of nuclear reactors?
1. Zinc
2. Sulphur
3. Sodium
4. Manganese
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Question 14 : Fuel for a nuclear reactor (thermal) is
1. Uranium
2. Plutonium
3. Radium
4. None of the mentioned
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Question 15 : The nuclear activity occurring in the radioisotope Strontium 90 is?
1. Alpha emission
2. Gamma Emission
3. Beta emission
4. None of the mentioned
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Question 16 : The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element?
1. Z
2. A
3. A+Z
4. A-Z
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Question 17 : Which of the following is not used as a nuclear fuel cladding material
1. Cadmium
2. Zircalloy
3. Ceramics
4. Stainless Steel
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Question 18 : Function of control rod in a nuclear reactor is to control
1. pressure
2. temperature
3. fuel consumption
4. absorption of neutrons
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Question 19 : Commercial power generation from fusion reactor is not yet possible, because
1. it is difficult to initiate fusion reaction
2. the fuel required (e.g. deuterium and tritium) is scarce
3. it is difficult to control fusion reaction
4. quantity of fuel required for initiating fusion reaction is prohibitively high
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Question 20 : In terms of speed, the newly produced neutrons are classed into how many types?
1. 2
2. 3
3. 4
4. 5
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