Practice Nuclear physics conductivity - general science mcq Online Quiz (set-1) For All Competitive Exams

Q-1)   Russia has agreed recently to construct how many units of nuclear reactors at Kundankulam in Tamil Nadu?

(a)

(b)

(c)

(d)

Q-2)   The half-life of a radioactive element is 5 years, then the fraction of the radioactive substance that remains after 20 years is

(a)

(b)

(c)

(d)

Q-3)   The highest temperature attained by a super conductor is

(a)

(b)

(c)

(d)

Q-4)   Which Uranium isotope is used in nuclear power plants to produce electricity?

(a)

(b)

(c)

(d)

Q-5)   Cyclotrons are used to accelerate

(a)

(b)

(c)

(d)

Q-6)   What is true for Kalpakkam Fast Breeder Reactor?
  1. In it, only natural uranium is used as a fuel.
  2. In it, Plutonium carbide and natural uranium carbide mixture are used as a fuel.
  3. More than 200 M Watt atomic electricity would be produced from it.
Choose the correct answer from the following alternatives.

(a)

(b)

(c)

(d)

Q-7)   The important nuclear fuel available in India in abundance is

(a)

(b)

(c)

(d)

Q-8)   The ultimate product of radioactive disintegration of uranium is

(a)

(b)

(c)

(d)

Q-9)   Radioactive element which has been found to have large reserves in India is

(a)

(b)

(c)

(d)

Q-10)   Consider the following statements. In a nuclear reactor, self-sustained chain reaction is possible because
  1. More neutrons are released in each of the fission reactions.
  2. The neutrons immediately take park in the fission process.
  3. The fast neutrons are slowed down by graphite.
  4. Every neutron released in the fission reaction initiates further fission.
Which of these statements are correct?

(a)

(b)

(c)

(d)

Q-11)   Stars obtain their energy from
  1. Nuclear fusion
  2. Gravitational contraction
  3. Chemical reaction
  4. Nuclear fission
Select your answer from the codes given below.

(a)

(b)

(c)

(d)

Explanation:

Q-12)   Which of the following element is not included as a nuclear fuel?

(a)

(b)

(c)

(d)

Q-13)   Which of the following is a semiconductor?

(a)

(b)

(c)

(d)

Q-14)   Radioactive substance emits

(a)

(b)

(c)

(d)

Q-15)   The principle of atomic bomb is based on

(a)

(b)

(c)

(d)

Q-16)   The characteristic of super conductor is

(a)

(b)

(c)

(d)

Q-17)   Who is present director of ‘BARC’?

(a)

(b)

(c)

(d)

Q-18)   The stars receive their energy from which of the following?

(a)

(b)

(c)

(d)

Q-19)   The energy of Sun is released due to

(a)

(b)

(c)

(d)

Q-20)   What is Nuclear Reactor?

(a)

(b)

(c)

(d)