Nuclear Science Quiz 5 (20 MCQs)

Quiz Instructions

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1. What type of decay is shown here23892U $\rightarrow$ 23490Th + 42He.

Correct Answer: A) Alpha.

2. Which of the following is NOT a nuclear accident that occurred at a power plant?

Correct Answer: D) Hiroshima.

3. The main ore of uranium is

Correct Answer: C) Pitchblende.

4. 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?

Correct Answer: D) A- Z.

5. Thorium-232 is converted into uranium-233 in a/an ..... nuclear reactor.

Correct Answer: B) Fast breeder.

6. K.E of the ejected electron

Correct Answer: B) Eb-b.

7. Which process leads to a more stable nucleus because it ADDS on to it?

Correct Answer: B) Fusion.

8. If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same istotope will be ..... days.

Correct Answer: A) 10.

9. Which is a fertile nuclear fuel?

Correct Answer: D) Th-232.

10. Which of the following is an adverse effect of the generation of nuclear energy?

Correct Answer: D) Produces hazardous radioactive wastes.

11. Nuclear fuel complex, Hyderabad is engaged in the job of

Correct Answer: C) Manufacture of nuclear fuel elements/assemblies .

12. What is a disadvantage to Hydroelectricity?

Correct Answer: D) Increases potential for flooding.

13. The main ore of thorium is

Correct Answer: D) Monazite sand.

14. Where does fusion occur naturally?

Correct Answer: D) On the sun.

15. On the periodic table, how is atomic mass represented?

Correct Answer: A) As an average of the mass of different isotopes.

16. What would two different isotopes of an atom have in common?

Correct Answer: B) Number of protons.

17. Which of the following is a CON about nuclear energy?

Correct Answer: C) Both of these are true.

18. ..... have the same mass number, but different nuclear charge.

Correct Answer: A) Isobars.

19. Which atom is mostly likely used during nuclear fusion?

Correct Answer: C) Hydrogen.

20. During beta decay, a nucleus .....

Correct Answer: D) Gains a proton and loses a neutron.