Nuclear Power Plant MCQ Quiz - Multiple Choice Questions & Answers Page 4

31. The size of the reactor is said to be critical when

1. chain reaction can be initiated
2. it becomes uncontrollable
3. it explodes
4. it produces no power

32. The total energy released in fission of U is

1. 5 MeV
2. 10 MeV
3. 199 MeV
4. 168 MeV

33. The unit of radio-activity is

1. electron-volt
2. electron-ampere
3. curie
4. MeV

34. U235 will undergo fission by

1. high energy (fast) neutrons alone
2. low energy (slow) neutrons alone
3. either fast or slow neutrons
4. medium energy neutrons

35. U238 will undergo fission by

1. high energy (fast) neutrons alone
2. low energy (slow) neutrons alone
3. either fast or slow neutrons
4. medium energy neutrons

36. Uranium-233 is produced

1. as basic raw material
2. by neutron irradiation of Uz
3. by neutron irradiation of thorium
4. artificially

37. Which of the following is the primary fuel

1. Ulii
2. U
3. U238
4. Pu

38. Which of the following nuclear reactor does not need a heat exchanger for generation of steam

1. gas cooled
2. liquid metal cooled
3. pressurised water
4. boiling water