Nuclear Power Plants Mcqs - Set 7

1)   Supertheated steam is generated in following reactor________________?

a. boiling water
b. gas cooled
c. pressurised water
d. all of the above
e. none of the above
Answer  Explanation 

ANSWER: gas cooled

Explanation:
No explanation is available for this question!


2)   In the breeder reactors the generation of new fissionable atom is_________________?

a. at the lower rate than the consumption
b. at a higher rate than the constuption
c. at an equal rate of the consumption
d. depends on other considerations
e. unpredictable
Answer  Explanation 

ANSWER: at a higher rate than the constuption

Explanation:
No explanation is available for this question!


3)   When a reactor becomes critical, then the production of neutrons is_________________?

a. infinite
b. zero
c. exactly balanced by the loss of neutrons through leakage
d. initiated
e. stopped
Answer  Explanation 

ANSWER: exactly balanced by the loss of neutrons through leakage

Explanation:
No explanation is available for this question!


4)   Reactors designed for propulsion applications are designed for_______________?

a. natural uranium
b. enriched uranium
c. pure uranium
d. any type of uranium
e. none of the above
Answer  Explanation 

ANSWER: enriched uranium

Explanation:
No explanation is available for this question!


5)   Solid- fuel for nuclear reactions may be fabricated into various small shapes such as___________________?

a. plates
b. pallets
c. pins
d. any one of the above
e. none of the above
Answer  Explanation 

ANSWER: any one of the above

Explanation:
No explanation is available for this question!


6)   Which of the following is more appropriate for a moderator. One which_________________?

a. does not absorb neutrons
b. absorbs neutrons
c. accelerates neutrons
d. eats up neutrons
e. regenerates neutrons
Answer  Explanation 

ANSWER: does not absorb neutrons

Explanation:
No explanation is available for this question!


7)   In triggering fission, the following types of neutrons are desirable_________________?

a. fast moving
b. slow moving
c. critical neutrons
d. neutrons at rest
e. none of the above
Answer  Explanation 

ANSWER: slow moving

Explanation:
No explanation is available for this question!


8)   In a fission process, maximum %age of energy is released as___________________?

a. kinetic energy of neutrons
b. kinetic energy of fission products
c. instantaneous release of gamma rays
d. gradual readioactive decay of fission products
e. none of the above
Answer  Explanation 

ANSWER: kinetic energy of fission products

Explanation:
No explanation is available for this question!


9)   The following present serious difficulty in designing reactor shield_________________?

a. alpha particles
b. beta particles
c. thermal neutrons
d. fast neutrons and gamma rays
e. none of the above
Answer  Explanation 

ANSWER: fast neutrons and gamma rays

Explanation:
No explanation is available for this question!


10)   In order to have constant clain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be________________?

a. greater than 1.0
b. less than 1.0
c. equal to zero
d. equal to 1.0
e. equal to infinity
Answer  Explanation 

ANSWER: equal to 1.0

Explanation:
No explanation is available for this question!