1786: A weightless rubber balloon is filled with 200 cc of water. Its weight in water is equal to:

(a) (9.8/5) N

(b) (9.8/10) N

(c) (9.8/2) N

(d) zero
1787: Vitamins do not act as a/an:

(a) Source of energy

(b) Stimulant in the growth of the body

(c) Agent in regulating the chemical processes in the body metabolism

(d) All of the above
1788: Gypsum is added to cement clinker to

(a) Increase the tensile strength of the cement

(b) Bind the particles of calcium silicate

(c) Decrease the rate of setting of cement

(d) Facilitate the formation of colloidal gel
1789: Community Development Programme was launched on the birthday of Gandhiji in the year:

(a) 1950

(b) 1952

(c) 1956

(d) 1963
1790: Which one of the following sets of economists strongly favoured a market economy?

(a) Adam Smith, Keynes, Hicks

(b) Adam Smith, Marx, Strumlin

(c) Adam Smith, Hayek, Friedman

(d) Adam Smith, Ricardo, J.K. Galbraith