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

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

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

The following present serious difficulty in designing reactor shield_________________?

A. Alpha particles
B. Beta particles
C. Thermal neutrons
D. Fast neutrons and gamma rays

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

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

A. Fast moving
B. Slow moving
C. Critical neutrons
D. Neutrons at rest

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

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

Reactors designed for propulsion applications are designed for_______________?

A. Natural uranium
B. Enriched uranium
C. Pure uranium
D. Any type of uranium

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