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

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

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

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 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

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

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

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

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

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

A. Plutonium
B. Uranium
C. Deuterium
D. Thorium

The coolant used in boiling water reactor is________________?

A. Co2
B. Pressurised water
C. Mixture of water and steam
D. Liquid metal