A. Graphite
B. Cadmium
C. Zircaloy (an alloy of zirconium and aluminium)
D. Stainless steel
A. Highly purified water
B. A compound of oxygen and deuterium
C. Water having dissolved salts of heavy metals
D. None of these
A. Froth floatation technique
B. Leaching with sulphuric acid
C. Smelting in a furnace
D. Dissolving in water
A. 3/4th of it will disintegrate in two months
B. It will completely disintegrate in two months
C. It will completely disintegrate in four months
D. 1/8th of it will remain intact at the end of four months
A. Th-232
B. U-238
C. U-233
D. None of these
A. 1/2
B. 1/4
C. 1/8
D. 1/16
A. Fissile atoms are evenly distributed throughout the mass of nuclear reactor
B. Same substance (e.g. heavy water) is used as moderator & coolant
C. The fuel and the moderator is mixed to form a homogeneous material
D. All A., B. and C.