Nuclear Power Plants Mcqs - Set 8

1)   A fission chain reaction in uranium can be developed by________________?

a. slowing down fast neutrons so that Uz fission continues by slow motion neutrons
b. accelerating fast neutrons
c. absorbing all neutrons
d. using moderator
e. enriching U235
Answer  Explanation 

ANSWER: slowing down fast neutrons so that Uz fission continues by slow motion neutrons

Explanation:
No explanation is available for this question!


2)   The fuel needed, with reflector in nuclear power plant, in order to generate sufficient neutrons to sustain a chain reaction, would be________________?

a. more
b. less
c. same
d. zero
e. negative, i.e. fuel would be generated
Answer  Explanation 

ANSWER: less

Explanation:
No explanation is available for this question!


3)   The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is__________________?

a. higher cost of nuclear fuel
b. high initial cost
c. high heat rejection in condenser
d. lower temperature and pressure condi-tions
e. nuclear hazard risk
Answer  Explanation 

ANSWER: lower temperature and pressure condi-tions

Explanation:
No explanation is available for this question!


4)   The presence of reflector in nuclear power plants results in___________________?

a. increased production of neutrons
b. complete absorption of neutrons
c. controlled production of neutrons
d. decreased leakage of neutrons
e. decrease of speed of neutrons
Answer  Explanation 

ANSWER: decreased leakage of neutrons

Explanation:
No explanation is available for this question!


5)   The most practical fuel for a thermo-nuclear reactor, both from econocical and nuclear consideration is____________________?

a. plutonium
b. uranium
c. deuterium
d. thorium
e. lithium
Answer  Explanation 

ANSWER: deuterium

Explanation:
No explanation is available for this question!


6)   The coolant used in boiling water reactor is________________?

a. Co2
b. pressurised water
c. mixture of water and steam
d. liquid metal
e. mercury
Answer  Explanation 

ANSWER: mixture of water and steam

Explanation:
No explanation is available for this question!


7)   Effective moderators are those materials which contain____________________?

a. light weight atoms
b. heavy weight atoms
c. critical atoms
d. zero weight atoms
e. there is no such criterion
Answer  Explanation 

ANSWER: light weight atoms

Explanation:
No explanation is available for this question!


8)   A fast breeder reactor uses_______________?

a. 90% U-235
b. U-238
c. U-235
d. Pu-239
e. U-239
Answer  Explanation 

ANSWER: 90% U-235

Explanation:
No explanation is available for this question!


9)   Pressurised water reactor is designed________________?

a. for boiling pi water in the core
b. to use liquid sodium metal as coolant
c. to use intermediate coolant
d. to prevent the water coolant from boiling in the core
e. to eliminate the coolant loop of the pressurised water
Answer  Explanation 

ANSWER: to prevent the water coolant from boiling in the core

Explanation:
No explanation is available for this question!


10)   In boiling water reactor, moderator is__________________?

a. coolant itself
b. ferrite rod
c. graphite rod
d. liquid sodium metal
e. blanket of thorium
Answer  Explanation 

ANSWER: coolant itself

Explanation:
No explanation is available for this question!