4516: Cryogenic engines find applications in
(a) sub-marine propulsion
(b) frost-free refrigerators
(c) rocket technology
(d) researches in superconductivity
4517: Real owners of the company are:
(a) Debenture holders
(b) Directors of the company
(c) Equity shareholders
(d) Bearer bond holders
4518: During which Five year Plan was the Emergency clamped, new elections took place and the Janata Party was elected?
(a) Fifth
(b) Fourth
(c) Sxith
(d) Third
4519: With reference to 'dugong', a mammal found in India, which of the following statements is/are correct?
1. It is a herbivorous marine animal.
2. It is found along the entire coast of India.
3. It is given legal protection under Schedule I of the Wildlife (Protection) Act, 1972.
Select the correct answer using the code given below.
(a) 1 and 2
(b) 2 only
(c) 1 and 3
(d) 3 only
4520: Virtual water trade is being looked at by experts as a solution the world's water crisis. What does virtual water (VW) imply?
(a) Volume of heavy water required to replace ordinary water.
(b) Volume of water required to produce a commodity or service.
(c) Volume of water saved by using rainwater harvesting
(d) Volume of water utilized by an effective flood control.