386: 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
387: Match List-I (Institute) with List-II (Located At) and select the correct answer using the codes given below the Lists :
List-I List-II
(Institute) (Located At)
A. Indian Institute of Geomagnetism 1. Coimbatore Institute
B. International Research Centre for Powder Metallurgy and New Materials 2. Mumbai Advanced
C. Salim Ali Centre for Ornithology and Natural History 3. Jabalpur
D. Tropical Forestry Research Institute 4. Hyderabad
Codes:
A B C D
(a) 2 3 1 4
(b) 1 4 2 3
(c) 2 4 1 3
(d) 1 3 2 4
388: Even though the Railways are the most pervasive mode of transport in India, it is the road transport which received the maximum impetus in most of the post-independence period. Which of the following are the reasons for this ?
I. Railways are cheap to operate but the associated capital costs are very high.
II. Given the geographic spread of the human settlements, it is unrealistic that the railways alone can serve the needs of transport.
III. The per unit (tonne/km) cost of transport is cheaper in road compared to rail transport.
IV. Given the indivisible nature of the Railways, it is not always convenient for the population to avail of it with the same ease as private cars, buses or two-wheelers.
Select the correct answer from the codes given below
Codes:
(a) I, II and III
(b) I, II and IV
(c) I, III and IV
(d) II, III and IV
389: Brahmo Samaj was founded by:
(a) Raja Ram Mohan Roy
(b) David Hare
(c) Derozio
(d) Alexander
390: Which of the following republics, besides Russia, are nuclear powers?
1. Ukraine
2. Georgia
3. Belarus
4. Kazakhstan
(a) 1, 2 and 4
(b) 2, 3 and 4
(c) 1, 2 and 3
(d) 1, 3 and 4