Nuclear Power Engineering — Part 2 MCQs with Explanations

3 is the correct answer to “U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about __________ percent.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Uranium-233 is the correct answer to “Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Electron is the correct answer to “In the nuclear reaction, 93 N 239 → 93 Pu 239 + ?; the missing particle is a/an”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

U-235 is the correct answer to “Enrichment of uranium is done to increase the concentration of __________ in the natural uranium.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

$$\frac{1}{{16}}$$ is the correct answer to “The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be __________ of its original weight.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Operating personnels is the correct answer to “Biological shield is provided in a nuclear power reactor to protect the __________ from radiation damage.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Both A & B is the correct answer to “In nuclear reactions, __________ number is conserved.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Either B or C is the correct answer to “The atomic number of an element is equal to the number of __________ present in its atom.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Fuel & moderator is the correct answer to “In a homogeneous nuclear reactor, the __________ are mixed together.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

$$\frac{1}{{1836}}$$ (approximately) is the correct answer to “An electron has a mass that is approximately __________ that of the proton.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

92 is the correct answer to “Nucleus of 92 U 235 contains __________ protons.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

< 0.025 is the correct answer to “Thermal neutrons which are used to cause the fission of U-235 have energy __________ eV.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Research is the correct answer to “Primary purpose of a __________ nuclear reactor is to supply a high neutron flux of the order of 10 13 to 10 14 neutrons/cm 2 second.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

2200 is the correct answer to “Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Neutrons is the correct answer to “Atoms of U-238 and U-235 differ in structure by three”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

99.29 is the correct answer to “Percentage of U-238 in natural uranium is around”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Natural uranium fuelled heavy water cooled & moderated is the correct answer to “Candu reactor is a __________ nuclcear reactor.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Both B and C is the correct answer to “A control rod”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

All of the above is the correct answer to “A fast breeder reactor”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Fission of U-235 by neutrons is the correct answer to “Heat is generated in a nuclear reactor (thermal) by”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

γ-rays is the correct answer to “β-rays emission in radioactive disintegration is always accompanied by the emission of”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Proton is the correct answer to “A radioactive substance does not emit”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Electromagnetic is the correct answer to “The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Coolant water is allowed to boil in the core of the reactor is the correct answer to “A boiling water reactor is the one, in which the”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

The fuel and the moderator is mixed to form a homogeneous material is the correct answer to “A homogeneous reactor is the one, in which the”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Bacquerrel is the correct answer to “The phenomenon of radioactivity was discovered by”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Thorium as a fertile material is the correct answer to “Fast breeder test reactor at Kalpakkam is designed for using”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Fast breeder is the correct answer to “Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

°Angstrom is the correct answer to “The size of an atom is of the order of one”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Uses slower neutrons for fission is the correct answer to “A thermal nuclear reactor compared to a fast breeder reactor”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Geiger-Muller Counter is the correct answer to “Which of the following may be used to measure the rate of nuclear disintegration”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

All of the above is the correct answer to “Heavy water is preferred over ordinary water as a coolant, because it.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Maintaining constant pressure in the primary cooling circuit under varying loads is the correct answer to “Pressure in a Pressurised Water Reactor (PWR) is used for”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

1012 is the correct answer to “The ratio of volume of an atom to that of its nucleus is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Slow down the secondary neutrons is the correct answer to “The function of moderators in nuclear reactor is to”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Pitchblende is the correct answer to “Which of the following ores contains maximum percentage of uranium”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

92U235 + 0n1 → 56Ba143 + 36Kr90 + 3 0n1 + Q (energy) is the correct answer to “Fission of U-235 on slow neutron bombardment can be represented by”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

β-emission is the correct answer to “The decrease in the atomic number is not observed in case of”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Surrounding it by neutron reflecting material is the correct answer to “The critical mass of a fissionable material can be reduced by”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Enriched uranium is the correct answer to “Nuclear fuel usually used in a Boiling Water Reactor (BWR) is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.