2126: The purest form of water is obtained from:
(a) A deep tube well
(b) A running stream
(c) Hot water spring
(d) Heavy rains
2127: The known forces of natures can be divided into four classes, viz., gravity, electromagnetism, week nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?
(a) Gravity is the strongest of the four
(b) Electromagnetism act only on particles with an electric charge
(c) Weak nuclear force causes radioactivity
(d) Strong nuclear force holds protons and neutrons inside the nuclear of an atom.
2128: In the 'Index of Eight Core Industries', which one of the following is given the highest weight?
(a) Coal production
(b) Electricity generation
(c) Fertilizer production
(d) Steel production
2129: For pasteurization by the Flash Method, milk is heated to a temperature of:
(a) 0°C
(b) 100°C
(c) - 4°C
(d) 72°C
2130: If it is 10.00 a.m. I.S.T., then what would be the local time at Shillong on 92°E longitude ?
(a) 9.38 a.m.
(b) 10.38 a.m.
(c) 10.22 a.m.
(d) 9.22 a.m.