3721: With reference to Indias satellite launch vehicles, consider the following statements:
1. PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites.
2. Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth.
3. GSLV Mk III is a four-staged launch l vehicle with the first and third stages l using solid rocket motors; and the second and fourth stages using liquid rocket engines.
Which of the statements given above is/are correct.?
(a) 1 only
(b) 2 and 3
(c) 1 and 2
(d) 3 only
3722: Which of the following shipyards makes warships?
(a) Cochin Shipyard
(b) Mishra Dhatu Nigam Ltd.
(c) Mazagon Dock
(d) Hindustan Shipyard
3723: The International Development Association, a lending agency, is administered by the
(a) International Bank for Reconstruction and Development
(b) International Fund for Agricultural Development
(c) United Nations Development Programme
(d) United Nations Industrial Development Organization
3724: Which one of the following metals does not form amalgams ?
(a) Zinc
(b) Copper
(c) Magnesium
(d) Iron
3725: Three ladies X, Y and Z marry three men A, B and C. X is married to A, Y is not married to an engineer, Z is not married to a doctor, C is not a doctor and A is a lawyer. Then which of the following statements is correct?
(a) Y is married to C who is an engineer
(b) Z is married to C who is a doctor
(c) X is married to a doctor
(d) None of these