New Chemical Engineering MCQs – Nuclear Power Engineering MCQs Competitive
This post is comprising of latest ” Nuclear Power Engineering MCQs – Latest Competitive Chemical Engineering MCQs “. Here you’ll get latest mechanical engineering mcqs for written test, interview with answers. If you want to improve your knowledge regarding mechanical engineering then read these mcqs of Design of Steel Structures.
Latest Chemical Engineering MCQs
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Latest Nuclear Power Engineering Mcqs
The most occurred mcqs of Nuclear Power Engineering in past papers. Past papers of Nuclear Power Engineering Mcqs. Past papers of Nuclear Power Engineering Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Nuclear Power Engineering Mcqs. The Important series of Nuclear Power Engineering Mcqs are given below:
The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235, followed by nuclear fission is __________________?
A. 2
B. 1
C. 3
D. 4
An ideal coolant for a nuclear reactor should ________________?
A. Have high density, but low heat transfer co-efficient
B. Be capable of attaining high temperature, only when it is pressurised
C. Be a good absorber of neutrons
D. Be free from radiation damage and non-corrosive
Heavy water is preferred over ordinary water as a coolant, because it?
A. Acts both as an efficient coolant as well as a moderator
B. Is less prone to radiation damage
C. Can be heated to a higher temperature without pressurizing
D. All A., B. and C.
Primary purpose of a ____________ nuclear reactor is to supply a high neutron flux of the order of 1013 to 1014neutrons/cm2 second?
A. Research
B. Breeder
C. Power
D. Homogeneous
Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of ____________ percent of U-235 (i.e. fissile material)?
A. 45
B. 15
C. 65
D. 85
Water is a better coolant than a gas (like CO2, He, N2 etc.), because it_________________?
A. Require comparatively smaller pumps and heat exchanger for a given heat transfer rate
B. Is a better neutron moderator as well
C. Has a better heat transfer characteristics, and it can be pressurised to attain a high temperature
D. All A., B. and C.
Materials And Construction Mcqs
Fuel for a nuclear reactor (thermal) is___________________?
A. Uranium
B. Radium
C. Plutonium
D. None of these
A heterogeneous reactor is the one, in which the moderator and the________________?
A. Coolant are present in different phases (e.g., heavy water and graphite)
B. Coolant are different materials
C. Fuel are present in different phases (e.g. uranium and heavy water)
D. None of these
The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is one month, then____________?
A. It will completely disintegrate in four months
B. It will completely disintegrate in two months
C. 3/4th of it will disintegrate in two months
D. 1/8th of it will remain intact at the end of four months
Liquid metal (e.g., molten sodium) is preferred as a coolant in case of a/an ______________ reactor?
A. Graphite moderated
B. Homogeneous
C. Fast breeder
D. Enriched uranium (3% U-235) fuelled
Unit of radioactivity is_________________?
A. Fermi
B. Barn
C. Angstrom
D. Curie
Out of the following places, a nuclear power plant is not located at______________?
A. Talcher (Orissa)
B. Rawatbhata (Rajasthan)
C. Kaiga (Karnataka)
D. Kalpakkam (Tamilnadu)
Radioactive decay of a material involves a _____________ order reaction?
A. Second
B. Third
C. First
D. Zero
The main purpose of control rod in a nuclear reactor is to control the___________________?
A. Chain reaction and hence the power output by regulating the number of secondary neutrons causing fission
B. Conversion of fissile material into fertile material
C. Emission of hazardous radiation
D. Velocity of the secondary neutrons
The decrease in the atomic number is not observed in case of________________?
A. α-emission
B. β-emission
C. Electron capture
D. Positron emission
Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is_______________?
A. 3
B. 200
C. 235
D. 92
Thorium can be converted into U-233 in a _____________ reactor?
A. Thermal
B. Fast breeder
C. Liquid metal cooled
D. Swimming pool
Isotopes of an element have the same__________________?
A. Mass number
B. Number of neutrons
C. Electronic configuration
D. Atomic weight
Use of molten metal as a coolant in fast breeder reactor helps in_________________?
A. Rapid heat transfer from the core
B. Accelerating the reaction rate in the core
C. Accelerating the neutrons
D. Breeding neutrons
A nuclear reactor can’t be used for_________________?
A. Marine ship propulsion
B. Supplying intense fields or beams of neutron for scientific experiments
C. The production of radioisotopes
D. None of these
Which of the following factors is the most important in the site selection for a nuclear power plant ?
A. Absence of earthquake prone zone in nearby areas
B. Remotely located from residential areas
C. Abundant availability of water
D. Proximity to fuel source
Graphite is used in nuclear reactor as_____________________?
A. Fuel
B. Insulation lining of the reactor
C. Lubricant
D. Retarder of neutron velocity
Which of the following may not need a moderator ?
A. Homogeneous reactor
B. Fast breeder reactor
C. Candu reactor
D. Pressurised water reactor
Net efficiency of ordinary light water cooled nuclear reactor is about _____________ percent?
A. 32
B. 72
C. 52
D. 88
Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?
A. < 0.025
B. 1-25
C. > 1
D. > 200
In nuclear reactions, ______________ number is conserved?
A. Atomic
B. Mass
C. Both A. & B.
D. Neither A. nor B.
Which of the following ores contains maximum percentage of uranium ?
A. Thorium
B. Carnotite
C. Rescolite
D. Pitchblende
Plutonium________________?
A. Has much lower melting point (640°C ) compared to thorium (1690°C)
B. Is recovered from spent fuel from thermal nuclear reactor
C. Both A. and B.
D. Neither A. nor B.
Tarapur (INDIA) atomic power station____________________?
A. Has an installed capacity of 400 MW
B. Has two boiling water reactors of American design
C. Is the first power reactor in India, which became critical in 1969
D. All A., B. and C.
Thorium-232 (a fertile material) on absorption of a neutron gets converted into ___________ , which is a fissile material?
A. Uranium-235
B. Thorium-233
C. Uranium-233
D. Plutonium-239
Final product of uranium extraction plant at Jadugoda (Bihar) is________________?
A. Uranium oxide
B. Uranium
C. Uranium carbide
D. Magnesium diuranate
β-rays emission in radioactive disintegration is always accompanied by the emission of____________________?
A. γ-rays
B. Neutrons
C. α-rays
D. None of these
Fluid Mechanics Mcqs
Which is used as a coolant in nuclear reactor due to its high capture cross-section ?
A. H2
B. He
C. N2
D. CO2
The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the________________?
A. Fuel cost per unit power generated is less
B. Maintenance cost of the former is less
C. Thermal efficiency of the former is higher
D. None of these
Which of the following is not a good moderating material ?
A. Boron
B. Concrete
C. 18/8 stainless steel
D. All A., B. and C.
Percentage of U-238 in natural uranium is around__________________?
A. 0.015
B. 99.29
C. 0.71
D. 29.71
Safety rods provided in nuclear reactors to guard against accidents, in case of earthquake are made of___________________?
A. Molybdenum
B. High carbon steel
C. Zircaloy
D. Boron or cadmium
Which of the following is not a naturally occurring nuclear fuel ?
A. Thorium-233
B. Uranium-238
C. Plutonium-239
D. None of these
Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor ?
A. CO2 gas cooled
B. Molten sodium cooled
C. Pressurised water
D. Boiling water
Emission of β-particles during radioactive decay of a substance is from__________________?
A. Outermost shell
B. Nucleus
C. Innermost shell
D. None of these
Solar energy results from _______________ reaction?
A. Combustion
B. Fission
C. Thermonuclear
D. None of these
Heavy water used in the nuclear reactors to slow down the speed of neutrons is __________________?
A. Water having dissolved salts of heavy metals
B. A compound of oxygen and deuterium
C. Highly purified water
D. None of these
The ratio of volume of an atom to that of its nucleus is__________________?
A. 1012
B. 10-8
C. 10-12
D. 108
A control rod________________?
A. Should have small absorption cross-section
B. Should have large absorption cross-section
C. Is generally made of boron, hafnium or cadmium
D. Both B. and C.
Which of the following types of nuclear reactors is most prone to radioactive hazards ?
A. Gas cooled reactor
B. Pressurised water reactor
C. Molten sodium cooled reactor
D. Boiling water reactor
Uranium Corporation of India Limited (UCIL) engaged in the mining & concentration of uranium ore is located at_______________?
A. Kalpakkam (in Tamilnadu)
B. Jadugoda (in Jharkhand)
C. Alwaye (in Kerala)
D. Gopalpur coast (in Orissa)
Coolant used in a fast breeder reactor is____________________?
A. Molten sodium
B. Ordinary water
C. Heavy water
D. Helium
Hydrogen bomb employs the nuclear fusion of __________________ ?
A. Tritium
B. Deuterium
C. Hydrogen
D. Helium
Pressure of CO2 gas (which is a coolant) in the Calder-Hall nuclear reactor is ______________ kgf/cm2?
A. 35
B. 7
C. 0.2
D. 50
Furnace Technology Mcqs
Which of the following may be used to measure the rate of nuclear disintegration ?
A. Geiger-Muller Counter
B. Cold chamber
C. Cyclotron
D. Mass spectrograph
Which of the following undergoes fission reaction easily ?
A. U-235
B. Th-232
C. U-238
D. None of these
The function of moderators in nuclear reactor is to _________________?
A. Slow down the secondary neutrons
B. Control the chain reaction
C. Absorb the secondary neutrons
D. None of these
Spent fuel from the nuclear thermal reactor contains__________________?
A. Plutonium
B. Fission products
C. Unused fuel
D. All A., B. & C.
The molecular weight of heavy water is_________________?
A. 18
B. 10
C. 20
D. 36
In the nuclear reaction, 93N239→ 94Pu239 + ?; the missing particle is a/an__________________?
A. Electron
B. Neutron
C. Proton
D. Position
Heavy water has maximum density at ______________ °C ?
A. 0
B. 11.6
C. 4
D. 18.6
The most commonly used nuclear fuel in boiling water reactor is___________________?
A. Enriched uranium
B. Plutonium
C. Natural uranium
D. Monazite sand
The phenomenon of nuclear fission is opposite to that of__________________?
A. Thermionic emission
B. Radioactive decay
C. Nuclear fusion
D. Combustion
The disintegration rate of a radioactive element _______________?
A. Remains constant throughout
B. Progressively decreases
C. Progressively increases
D. May increase or decrease depending on the material
The largest stable nucleus is ________________?
A. U-235
B. Pb-206
C. U-238
D. Bi-209
In β-decay of radioactive material, the ratio of neutron to proton____________________?
A. Remain same
B. Increases
C. Decreases
D. Is unpredictable; may increase or decrease
Thermal nuclear reactors using enriched uranium as fuel contains a maximum of ____________ percent fissile material i.e. U-235?
A. 2
B. 1
C. 3
D. 7
The phenomenon of radioactivity was discovered by___________________?
A. Roentgen
B. Becquerel
C. Madam Curie
D. J.J. Thomson
First experimental observation of nuclear fission was done by ____________________?
A. Rutherford
B. Plane
C. Fermi
D. Hahn and Strassmann
Ordinary water is not used as a moderator because, it___________________?
A. Has a low scattering cross-section
B. Has a low absorption cross-section
C. Absorbs neutrons
D. Does not absorb neutrons
Percentage of heavy water in ordinary water is around__________________?
A. 0.015
B. 0.71
C. 7.54
D. 32.97
Atoms with same number of neutrons, but different number of nucleons are called___________________?
A. Isotones
B. Isotopes
C. Isobars
D. Isostere
The emission of an a-particle causes the resultant nucleus to have____________________?
A. More atomic weight and less atomic number
B. Less atomic weight and more atomic number
C. Less atomic weight and less atomic number
D. None of these
Neutrons have mass approximately equal to that of _____________ atoms?
A. Hydrogen
B. Deuterium
C. Helium
D. None of these
Which of the following is artificially produced as it does not occur in nature ?
A. Uranium-233
B. Uranium-235
C. Plutonium-239
D. Both B. and C.