81: In which of the following shapes can a 1 kg plastic sheet be moulded so as to have minimum surface area?
(a) Cylindrical
(b) Spherical
(c) Conical
(d) Cubical
82: Match List I (Distinguished Person) with List II (Area of Work) and select the correct answer using the code given below the lists:
List I List II
(Distinguished Person) (Area of Work)
A. B. V. Rao 1. Automobiles Manufacture
B. C. K. Prahalad 2. Fisheries Economy
C. John Kurien 3. Information Technology and Software
D. Kiran Karnik 4. Poultry Farming
5. Management Science
(A) 2---------3---------1---------5
(B) 4---------3---------2---------5
(C) 4--------5---------2---------3
(D) 2---------5---------1---------3
83: With reference to 'Li-Fi', recently in the news, which of the following statements is/are correct?
1. It uses light as the medium for high-speed data transmission.
2. It is a wireless technology and is several times faster than 'WiFi'.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
84: With reference to Indian economy, consider the following statements:
1. The rate of growth of Real Gross Domestic Product has steadily increased in the last decade.
2. The Gross Domestic Product at market prices (in rupees) has steadily increased in the last
decade.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
85: The largest share of Foreign Direct Investment (1997-2000) went to
(a) Food and food-product sector
(b) Engineering sector
(c) Electronics and electric equipment sector
(d) Service sector