2141: Ice skating can be used to demonstrate that when ice is under pressure, its:
(a) Melting point is lowered
(b) Melting point is raised
(c) Melting point remains unchanged
(d) Coefficient of friction with metal is reduced
2142: The most effective contribution made by Dadabhai Naoroji to the cause of Indian National Movement was that he
(a) Brought the problems of Indians to the notice of the British.
(b) Exposed the economic exploitation of India by the British.
(c) Interpreted the ancient Indian texts and restored the self-confidence of Indians.
(d) Stressed the need for eradication of all the social evils before anything else.
2143: Metals used in voltaic cell are:
(a) Zinc and lead
(b) Carbon and zinc
(c) Zinc and copper
(d) Carbon and nickel
2144: Which of the following Constitutional Amendments are related to raising the number of Members of Lok Sabha to be elected from the States?
(a) 6th and 22nd
(b) 13th and 38th
(c) 7th and 31st
(d) 11th and 42nd
2145: At a time when empires in Europe were crumbling before the might of Napoleon which one of the following Governors- General kept the British flag flying high in India ?
(a) Warren Hastings
(b) Lord Cornwallis
(c) Lord Wellesley
(d) Lord Hastings