chemical engineering nuclear power engineering MCQs – Page 2

Practise multiple-choice questions from chemical engineering nuclear power engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering nuclear power engineering Mcqs
21. An ideal coolant for a nuclear reactor should ________________?
comments icon0

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
22. The decrease in the atomic number is not observed in case of________________?
comments icon0

A. ?-emission

B. Positron emission

C. Electron capture

D. ?-emission
23. The electric power generation cost in nuclear power plant is less than that in a coal based thermal power plant, mainly because the________________?
comments icon0

A. Thermal efficiency of the former is higher

B. Fuel cost per unit power generated is less

C. Maintenance cost of the former is less

D. None of these

24. Out of the following places, a nuclear power plant is not located at______________?
comments icon0
A. Talcher (Orissa)

B. Kalpakkam (Tamilnadu)

C. Kaiga (Karnataka)

D. Rawatbhata (Rajasthan)

25. Which is used as a coolant in nuclear reactor due to its high capture cross-section ?
comments icon0
A. H2

B. He

C. N2

D. CO2

26. Thorium can be converted into U-233 in a _____________ reactor?
comments icon0

A. Liquid metal cooled

B. Swimming pool

C. Thermal

D. Fast breeder
27. Fuel for a nuclear reactor (thermal) is___________________?
comments icon0

A. None of these

B. Radium

C. Uranium

D. Plutonium

28. 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 __________________?
comments icon0
A. 3

B. 4

C. 2

D. 1

29. A nuclear reactor cant be used for_________________?
comments icon0

A. Marine ship propulsion

B. None of these

C. Supplying intense fields or beams of neutron for scientific experiments

D. The production of radioisotopes

30. Use of molten metal as a coolant in fast breeder reactor helps in_________________?
comments icon0
A. Rapid heat transfer from the core

B. Breeding neutrons

C. Accelerating the neutrons

D. Accelerating the reaction rate in the core

31. Plutonium________________?
comments icon0

A. Is recovered from spent fuel from thermal nuclear reactor

B. Has much lower melting point (640C ) compared to thorium (1690C)

C. Both A. and B.

D. Neither A. nor B.

32. Primary purpose of a ____________ nuclear reactor is to supply a high neutron flux of the order of 1013 to 1014neutrons/cm2 second?
comments icon0
A. Research

B. Breeder

C. Power

D. Homogeneous

33. Graphite is used in nuclear reactor as_____________________?
comments icon0

A. Insulation lining of the reactor

B. Retarder of neutron velocity

C. Lubricant

D. Fuel

34. 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____________?
comments icon0

A. 1/8th of it will remain intact at the end of four months

B. It will completely disintegrate in two months

C. It will completely disintegrate in four months

D. 3/4th of it will disintegrate in two months

35. The mass number of an element is not changed, when it emits _______________ radiations?
comments icon0

A. ?, ?, & ?

B. ? & ?

C. ? & ?

D. ? & ?

36. Thermal nuclear reactors using enriched uranium as fuel contains a maximum of ____________ percent fissile material i.e. U-235?
comments icon0

A. 7

B. 3

C. 2

D. 1

37. Both tritium and deuterium have the same number of_______________?
comments icon0
A. Neutrons

B. Electrons

C. Nucleons

D. Protons

38. Spent fuel from the nuclear thermal reactor contains__________________?
comments icon0
A. All A., B. & C.

B. Fission products

C. Plutonium

D. Unused fuel

39. Candu reactor is a ______________ nuclear reactor?
comments icon0

A. Fast breeder

B. Homogeneous

C. Natural uranium fuelled heavy water cooled & moderated

D. Highly enriched uranium (85% U-235) fuelled

40. Hydrogen has ______________ isotopes?
comments icon0
A. Three

B. Two

C. One

D. No