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Nuclear Reactions – 1 – 1

1. The most important advantage of nuclear energy is :

(a) less time is required to generate the energy
(b) a small nuclear fuel is sufficient to produce huge amount of energy
(c) less safety measures are sufficient
(d) many operational difficulties are not there

Answer
Answer : (b)

Explanation
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2. Which one of the following nuclear reactions is correct ?

(a) 7N14 2He→ 8Fe19 → 8O16 1H1
(b) 7N14 1H→ 8Fe15 → 6O16 2H1
(c) 7N14 2He→ 8Fe18 → 8O17 1H1
(d) all are the true

Answer
Answer : (c)

Explanation
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3. Moderator is used to :

(a) Accelerate the bombarding neutrons
(b) Slow down the bombarding neutrons
(c) To eject more electrons
(d) To arrest the nuclear reaction

Answer
Answer : (b)

Explanation
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4. The control rod in a nuclear reactor is made of :

(a) Uranium
(b) Cadmium
(c) Plutomium 
(d) Graphite

Answer
Answer : (b)

Explanation
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5. Which of the following isotopes normally fissonable :

(a) 92U233
(b) 92U235
(c) 92U238
(d) 92U240

Answer
Answer : (b)

Explanation
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