2311: Stainless steel contains which of the following?
(a) Aluminium and Zinc
(b) Chromium and Carbon
(c) Zinc and Mercury
(d) Copper and Cadmium
2312: Assertion (A):
A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.
Reason (R):
The density of copper is more than that of glass.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
2313: Which of the following is the chief characteristic of 'mixed farming'?
(a) Cultivation of both cash crops and food crops
(b) Cultivation of two or more crops in the same field
(c) Rearing of animals and cultivation of crops together
(d) None of the above
2314: Who among the following wrote 'The Communist Manifesto' along with Karl Marx ?
(a) Emile Durkheim
(b) Max Weber
(c) Friedrich Engels
(d) Robert Owen
2315: Assertion (A):
The amount of moisture in the atmosphere is related to latitude.
Reason (R):
The capacity to hold moisture in the form of water vapour is related to temperature.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true