3076: Helium is used for respiration in deep water instead of nitrogen because:
(a) It is heavier than nitrogen
(b) It is lighter than nitrogen
(c) It mixes less in blood than nitrogen
(d) It helps oxygen burn more quickly
3077: The court language of Mughals was:
(a) Urdu
(b) Arabic
(c) Persian
(d) Turkish
3078: The process by which metal surface is coated with thin layer of zinc is called:
(a) Vulcanising
(b) Galvanising
(c) Electroplating
(d) None of these
3079: Who among the following was a proponent of Fabianism as a movement?
(a) Annie Besant
(b) A. O. Hume
(c) R. Palme Dutt
(d) Michael Madhusudan Dutt
3080: The growth rate of per capita income at current prices is higher than that of per capita income at constant prices, because the latter takes into account the rate of
(a) growth of population
(b) increase in price level
(c) growth of money supply
(d) increase in the wage rate