Nuclear Reactor

IMPORTANT

Nuclear Reactor: Overview

This topic covers concepts such as Nuclear Reactors, Moderator in a Nuclear Reactor, Control Rods in Nuclear Reactor, Multiplication Factor in Nuclear Reactor, Uncontrolled Nuclear Chain Reaction, Controlled Nuclear Chain Reaction, etc.

Important Questions on Nuclear Reactor

EASY
IMPORTANT

What type of nuclei is (preferably) needed for slowing down fast neutrons?

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A chain reaction is possible when the mass of the fuel is greater than the

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Nuclear reactor drive the propellers of ships otherwise to turn the shafts of electrical _____.

MEDIUM
IMPORTANT

What is the underlying principle of the atomic bomb in respect of nuclear energy.

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Cadmium rods are used in a nuclear reactor for

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IMPORTANT

Which of the following is/are correct?
i. Chain reaction takes place in a nuclear reactor and an atomic bomb.
ii. The chain reaction in a nuclear reactor is controlled.
iii. The chain reaction in a nuclear reactor is not controlled.
iv. No chain reaction takes place in an atom bomb.

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IMPORTANT

In a nuclear power station, a moderator is required to
 

MEDIUM
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The primary purpose of the coolant in a nuclear reactor is to reduce the danger of overheating the structure of the reactor.

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Fast neutrons can easily slowed down by :-

HARD
IMPORTANT

How is a nuclear chain reaction controlled in a nuclear reactor?

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IMPORTANT

What is a controlled nuclear chain reaction?

HARD
IMPORTANT

How can an uncontrolled nuclear chain reaction lead to atomic explosion?

HARD
IMPORTANT

What is an uncontrolled nuclear chain reaction?

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If nuclear reactors can produce large amount of electrical energy from very small amount of nuclear fuel, then why are nuclear reactors not used more frequently?

MEDIUM
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What is radioactive waste? How is it disposed of?

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Which of the following is a true statement in context of nuclear reactor?

MEDIUM
IMPORTANT

Comment on the radioactive pollution caused due to the operation of nuclear reactor.

HARD
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What are some of the disadvantages of nuclear reactors?

HARD
IMPORTANT

200 MeV energy is obtained per fission of U-235. If a reactor with U-235 as fuel generates 1000 kW power, then calculate the number of disintegrations per second for nuclei in this reactor.

HARD
IMPORTANT

Draw a simple diagram of a nuclear reactor and explain its working.