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The critical mass of a nuclear reaction is (1) The initial mass to start a nuclear fission (2) The minimum mass for the chain reaction (3) The size of the reactor core (4) The size of the reactor core + size of the moderator
2 4612India carried out underground ?Nuclear Explosion? in Rajasthan at: (a) Jaduguda (b) Jaisalmer (c) Sriganganagar (d) Pokhran
2 4962The first nuclear test was conducted in India in the year: (a) 1975 (b) 1974 (c) 1973 (d) 1977
2 5741The NPT (nuclear Non-Proliferation Treaty) came into force in : (A) 1968 (B) 1972 (C) 1970 (D) 1974
2 4058The second unit of the nuclear power station at Kaiga has a generation capacity of: (A) 210 MW (B) 220 MW (C) 440 MW (D) 110 MW
4 5685To control nuclear reactions in a nuclear reactor so that explosion does not occur, one uses, (1) Cadmium rods (2) Carbon rods (3) Heavy water (4) Aluminium rods
1 3502What nuclear fuel does bombarding thorium with neutrons produce? (1) Heavy water (2) Hydrogen sulphate (3) Uranium-233 (4) None of the above
1 4153. Nuclear power stations are located at (1) Rarapur (maharashtra) (2) Kota (Rajasthan) (3) Kalpakam (near Madras) and Narora (U.P.) (4) All the three
1 4053A moderator is used in nuclear reactors in order to 1 Increase the number of neutrons 2 Decrease the number of neutrons 3 Slow down the speed of neutrons 4 Accelerate the neutrons
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