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
(D) decrease of speed of neutrons
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
(D) nuclear hazard risk
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
(D) negative, i.e. fuel would be generated
When heat is transferred form hot body to cold body, in a straight line, without affecting the intervening medium, it is referred as heat transfer by __________________?
(A) conduction
(B) convection
(C) radiation
(D) conduction and convection
(D) convection and radiation
Heat transfer takes place as per ________________?
(A) zeroth law of thermodynamics
(B) first law of thermodynamic
(C) second law of the thermodynamics
(D) Kirchoff’s law
(D) Stefan’s law
Which of the following type of pump is used in liquid metal cooled reactor for circulation of liquid metal_________________?
(A) centrifugal
(B) axial
(C) reciprocation
(D) electromagnetic
(D) diaphragm
A boiling water reactor uses following as fuel________________?
(A) enriched uranium
(B) plutonium
(C) thorium
(D) U
(D) natural uranium.
In nuclear fission___________________?
(A) the original elements change into completely different elements
(B) the electrons of the element change
(C) the molecules rearrange themselves to form other molecules
(D) none of the above
For economical operation of a nuclear plant__________________?
(A) used fuel should be reprocessed
(B) moderator should be used
(C) coolant should be employed
(D) control rods should be used
(D) reflector should be used
Each fission of U235 produces following number of fast neutrons per fission________________?
(A) 1 neutron
(B) 1 — neutrons
(C) 1 – 2 neutrons
(D) 2 — neutrons
(D) infinite