2051: Antigen is a substance which
(a) lowers body temperature
(b) destroys harmful bacteria
(c) triggers the immune system
(d) is used as an antidote to poison
2052: Which of the following is used in diesel engine?
(1) Cylinder
(2) Spark Plug
(3) Piston
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(a) 1, 2 and 3
(b) 1 and 2
(c) 2 and 3
(d) 1 and 3
2053: Consider the following passage:
In the course of a career on the road spanning almost thirty years, he crossed the breadth of the Eastern hemisphere, visited territories equivalent to about 44 modern countries, and put behind him a total distance of approximately 73,000 miles.
The world's greatest traveller of pre-modern times to whom the above passage refers is
(a) Megasthenes
(b) Fa-Hien
(c) Marco Polo
(d) Ibn Battuta
2054: Railway and Telegraphy systems were introduced in India by:
(a) Lord Dalhousie
(b) Lord Cornwallis
(c) Lord Bentinck
(d) Lord Wellesley
2055: Consider the following statements:
1. The United Nations Convention against Corruption (UNCAC) has a Protocol against the Smuggling of Migrants by Land, Sea and Air.
2. The UNCAC is the ever-first legally binding global anti-corruption instrument.
3. A highlight of the United Nations Convention against Transnational Organized Crime (UNTOC) is the inclusion of a specific chapter aimed at returning assets to their rightful owners from whom they had been taken illicitly.
4. The United Nations Office on Drugs and Crime (UNODC) is mandated by its member States to assist in the implementation of both UNCAC and UNTOC.
Which of the statements given above are correct?
(a) 1 and 3 only
(b) 2, 3 and 4 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4