Nuclear Power Engineering — Part 1 MCQs with Explanations

N2 is the correct answer to “Which of the following gases has very high neutron capture cross-section, making it unsuitable as a coolant in nuclear reactor”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Both A & B is the correct answer to “Heavy water (D 2 O) in a nuclear reactor serves as a”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Poor absorber of neutrons is the correct answer to “Moderating material used in a thermal-reactor should be a”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

90U234 is the correct answer to “The 92 U 238 emits an a-particle. The product is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

All of the above is the correct answer to “Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Isobars is the correct answer to “__________ have the same mass number, but different nuclear charge.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

All of the above is the correct answer to “Water is a better coolant than a gas (like CO 2 , He, N 2 etc.), because it”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Sodium is the correct answer to “Which is the most commonly used molten metal for cooling of nuclear reactors”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Nuclear is the correct answer to “Radioactive decay is a __________ change.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

A compound of oxygen and deuterium is the correct answer to “Heavy water used in the nuclear reactors to slow down the speed of neutrons is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Deuterium is the correct answer to “Hydrogen bomb employs the nuclear fusion of”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Rapid heat transfer from the core is the correct answer to “Use of molten metal as a coolant in fast breeder reactor helps in”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Plutonium is the correct answer to “Fuel for a fast breeder reactor is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Leaching with sulphuric acid is the correct answer to “Uranium is recovered from its ore (pitchblende) by”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

18 is the correct answer to “The time taken for a radioactive element to reduce to 50% of its original weight is __________ years, if its half life period is 12 years.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

$$\gamma $$-rays is the correct answer to “Which of the following is the most harmful for the human being”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

A mixture of water & steam is the correct answer to “Coolant used in a boiling water reactor is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

A- Z is the correct answer to “The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Chemical is the correct answer to “Extraction of uranium from its ore is done by __________ method.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Retarder of neutron velocity is the correct answer to “Graphite is used in nuclear reactor as”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

92U238 is the correct answer to “The most abundant isotope of natural uranium is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Both B and C is the correct answer to “Which of the following is artificially produced as it does not occur in nature”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Absorption of neutrons is the correct answer to “Function of control rod in a nuclear reactor is to control”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Isotones is the correct answer to “Atoms with same number of neutrons, but different number of nucleons are called”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Neutrons plus protons (i.e., nucleons) is the correct answer to “The mass number of an element is equal to the number of __________ in the nucleus.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Curie is the correct answer to “Radioactivity of an isotope is expressed in”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Talcher (Orissa) is the correct answer to “Out of the followingplaces, a nuclear power plant is not located at”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Talcher (Orissa) is the correct answer to “Nuclear power plant is not located at”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Progressively decreases is the correct answer to “The disintegration rate of a radioactive element”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Isotones is the correct answer to “When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Nucleons is the correct answer to “An element having large number of __________ is most easily subjected to nuclear fission.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

98 is the correct answer to “Sodium melts (at atmospheric pressure) at a temperature of __________ °C.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Kinetic energy of fission products is the correct answer to “Which of the following accounts for the maximum energy release in the nuclear fission process”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

More atomic weight and less atomic number is the correct answer to “The emission of an a-particle causes the resultant nucleus to have”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Iodine is the correct answer to “The radioisotope used to study the thyroid gland is”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

931 is the correct answer to “Energy equivlant to one atomic mass unit (amu) is __________ MeV.”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

0.015 is the correct answer to “Percentage of the heavy water in ordi water is around”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Ramagundam is the correct answer to “Heavy water plant is not located at”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

Ramagundam is the correct answer to “Out of the following places, heavy water plant is not located at”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.

10-24 cm2 is the correct answer to “Absorption/scattering cross-section of an element is expressed in "barn", which is equivalent to”. This question is standard in competitive examination syllabi for Nuclear Power Engineering.