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Nuclear Science and Radioactivity [ Science Set 17] | UPPSC Prelims PYQ of Last 30 Years |Important | Objective Question Answer, MCQ and QUIZ

Nuclear Science and Radioactivity [ Science Set 17] | UPPSC Prelims PYQ of Last 30 Years |Important | Objective Question Answer, MCQ and QUIZ

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1. The Magnetic Resonance Imaging ( MRI) is based on the phenomenon of 

a) Nuclear Magnetic Resonance 

b) Electron Spin Resonance

c) Electron Paramagnetic Resonance 

d) Diamagnetism of Human tissues


Answer. a) Nuclear Magnetic Resonance ;

. 



2. Radioactivity is measured by ( UPPSC PYQ)

a) Hydrometer

b) Geiger Counter

c) Seismometer

d) Ammeter


Answer. b) Geiger Counter;

.


3. Radioactivity was discovered by 

a) Rutherford

b) Becquerel

c) Bohr

d) Madam Curie


Answer. b) Becquerel;

.



4. The substance used as the moderator and coolant, in nuclear reactors is 

a) Ordinary water

b) Heavy water

c) Liquid Ammonia

d) Liquid Hydrogen


Answer. b) Heavy water;

.



5. Heavy water

a) Contains more dissolved air

b) Contains deuterium in place of hydrogen

c) Contains more dissolved miners and salts

d) Contains organic impurities


Answer. b) Contains deuterium in place of hydrogen;

.


6. The hydrogen bomb was developed by

a) Edward Taylor

b) Wernher Von Braun

c) J Robert Oppen Heimer

d) Samuel Cohen


Answer. a) Edward Taylor;

.



7. Enhanced Uranium is

a) Uranium rods placed in a special shell

b) Natural uranium in which the component of the radioactive U235 isotope is artificially enhanced

c) Mixture of natural uranium and thorium

d) Uranium sticks coated with chromium


Answer. b) Natural uranium in which the component of the radioactive U235 isotope is artificially enhanced;

.


8. The official code name of the Pokharan nuclear test 1974-

a) Smiling Buddha

b) Thunder Bolt

c) Flying Garud

d) Agni Pareeksha


Answer. a) Smiling Buddha;

.



9. "Operation Shakti-98" is the name-

a) Given to nuclear test carried out a Pokharan in 1998

b) Given to air exercises carried out by Indian Air Force SU 30 planes

c) Given to the pro-active Programme of the Union Home Minister to contain terrorism in J&K

d) Given military action against extremists in Tripura


Answer. a) Given to nuclear test carried out a Pokharan in 1998;

.



 10. With reference to the radioactivity, which of the following statements is/are correct?

1. Radioactivity is a nuclear property.

2. A hydrogen bomb is prepared on the principle of nuclear fission. 

Select the correct answer using the codes given below. ( UPPSC PYQ)

Codes:

a) only 1

b) only 2

c) Both 1 and 2

d) Neither 1 nor 2


Answer. a) only 1;

.


11. The energy of the sun is produced by

a) Nuclear fusion

b) Oxidation

c) Gravitation

d) Nuclear fission


Answer. a) Nuclear fusion;

. 


12. "Solar Energy" is due to

a) Fusion reaction

b) Fission reaction

c) Chemical reaction

d) Combustion reaction


Answer. a) Fusion reaction


13.  Consider the following statements

Statement ( A): Ernest Rutherford said before the Royal Society that nuclear power would never be available to man.

Reason ( B): He believed that the law of Einstein would fail and quantity would not be converted into energy

Select your answer from the code scheme given below:

a) Both A and R are true, and R is the correct explanation of A

b) Both A and R are true, but R is not the correct explanation of A.

c) A is true, but R is false

d) A is false, but R is true


Answer. a) Both A and R are true, and R is the correct explanation of A


14. Cyclotrons are used to accelerate-

a) Neutrons

b) Protons

c) Atoms

d) Ions


Answer. b) Protons;

.



15. The stars get their energy-

1. By nuclear fusion

2. By Gravitational contraction

3. By Chemical reaction

4. By nuclear fission

Select your answer from the code given below-

Code:

a) 1 and 2

b) 1,2, and 3

c) 1 and 4

d) 2 and 4


Answer. a) 1 and 2;

.



16. What is a nuclear reactor?

a) Atomic bomb manufacturing site

b) Heavy water pond

c) Emitter of U238

d) Molecular furnace


Answer. d) Molecular furnace;

.


17. Consider the following statements regarding nuclear fusion reactors:

1. They operate on the principle of fragmentation of heavy nuclei

2. They usually have a tokamak design

3. They operate at very high temperatures

among these

a) Only 1 and 3 are correct

b) Only 1 and 2 are correct

c) Only 2 and 3 are correct

d) All three I, II, and II are correct


Answer. c) Only 2 and 3 are correct;



Answer. b) The chain reaction in the nuclear reactor is controlled ;

.


19. Which one of the following can not be used as a nuclear fuel?

a) Uranium

b) Thorium

c) Calcium

d) Plutonium


Answer. c) Calcium;

.




20. The working principle of the atomic bomb is nuclear fission of uranium and the working principle of the hydrogen bomb is -

a) Nuclear fusion of deuterium

b) Nuclear fission of thorium

c) Explosion of bomb involving hydrogen gas

d) Explosion involving dynamite and T.N.T


Answer. a) Nuclear fusion of deuterium;




21. The hydrogen bomb is based on the principle of -

a) Controlled fusion reaction

b) Uncontrolled fusion reaction

c) Controlled fission reaction

d) Uncontrolled fission reaction


Answer. b) Uncontrolled fusion reaction;

.



22. What are the links between Dhruva, Purnima, and Cirus?

a) They are Indian research reactors

b) They are stars

c) These are names of famous books

d) They are power plants


Answer. a) They are Indian research reactors;

.



23. The Indira Gandhi Atomic Research Centre is located in

a) Maharashtra

b) Tamil Nadu

c) Uttar Pradesh

d) Karnataka


Answer. b) Tamil Nadu;

.


24. Which of the following is not correctly matched?

a) Indira Gandhi Centre for Atomic Research - Kalpakkam

b) Atomic Minerals directorate for exploration and Research - Hyderabad

c) Harishchandra Research Institute - Chennai

d) Saha Institute of Nuclear Physics - Kolkata


Answer. c) Harishchandra Research Institute - Chennai;



25. Heavy Water is manufactured in India at?

a) Trombay

b) Assam

d) Delhi

d) Bhilai


Answer. a) Trombay;

.


26. Match List I with List II and select the correct answer using the codes given below the lists:

            List I                                            List II

    ( Nuclear Power Center)        ( State with location)

A. Kalpakkam                        1. Uttar Pradesh

B. Narora                                2. Gujarat

C. Kakrapar                            3. Tamil Nadu

D. Trombay                            4. Maharashtra

Codes:

    A    B    C    D

a) 1    2    3    4

b)  3    1    2    4

c)  3    1    4    2

d)  2    3    4    1


Answer. b)  3    1    2    4;

.



27. The atomic power plants are located at

Select the correct answer from the codes given below-

1. Narora

2. Ghatshilla

3. Kalpakkam

4. Nangal

Codes:

a) 2 and 4

b) 1 and 3

c) only 4

d) only 2


Answer. b) 1 and 3;



28. Which of the following nuclear plant IV of India is located in the seismic belt?

a) Kaiga

b) Kalpakkam

c) Narora

d) Tarapur


Answer. c) Narora;


29. What is true for the 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 MW of atomic electricity would be produced from it.

Choose the correct answer from the following alternatives-

a) 1 and 2

b) 1 and 3

c) 2 and 3

d) 1,2, and 3


Answer. c) 2 and 3;


30. Which one of the following is used as the coolant in the "Fast Breeder Test Reactor" at Kalpakkam?

a) Carbon dioxide

b) Heavy Water

c) Seawater

d) Molten Sodium


Answer. d) Molten Sodium;

.


31. Which one of the following is used as a moderator in a nuclear reactor?

a) Thorium

b) Graphite

c) Radium

d) Ordinary Water


Answer. b) Graphite;

.


32. Graphite is used in the Nuclear reactor as

a) Fuel

b) Lubricant

c) Moderator

d) None of these


Answer. c) Moderator


33. Which one of the following is used as a moderator in a nuclear reactor?

a) Thorium

b) Heavy water

c) Radium

d) Ordinary water


Answer. b) Heavy water;

. 



34. A Breeder reactor is that which-

a) Does not require fissionable material at all

b) Use only heavy water

c) Produces more fissionable material than it burns

d) None of these


Answer. c) Produces more fissionable material than it burns;

.


35. Who is associated with the development of India's Atomic Bomb.

a) A.P.J Abdul Kalam

b) Homi Bhabha

c) Raja Rammanna

d) Kastoorirangan


Answer. c) Raja Rammanna;

.



36. Who is the author of " Nuclear Reactor Time Bomb"

a) C C Park

b) E P Odum

c) S Polasky

d) Takashi Hirose


Answer. d) Takashi Hirose;


37. Consider the following statements

Assertion A: India's nuclear policy incorporates its unpreparedness to open its nuclear plants to International inspection.

Reason R: India will not produce any nuclear bomb

Select your answer from the code given below

a) Both A and R are true and R is the correct explanation of A

b) Both A and R are true, but R is not the correct explanation

c) A is true, but R is false

d) A is false, but R is true.


Answer. c) A is true, but R is false;



38. The first heavy water plant was established in

a) Bangalore

b) Bhopal

c) Nangal

d) Hyderabad


Answer. c) Nangal;

.



39. Which of these is used as a Controller rod in a Nuclear reactor?

a) Cadmium

b) Uranium

c) Plutonium

d) All of the above


Answer. a) Cadmium

.


40. 


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