181: During a thunderstorm, the thunder in the skies is produced by the

1. meeting of cumulonimbus clouds in the sky

2. lightning that separates the nimbus clouds

3. violent upward movement of air and water particles

Select the correct answer using the codes given below.

(a) 1 only

(b) 2 and 3

(C) 1 and 3

(d) None of the above produces the thunder
182: The Prime Minister of India, at the time of his/her appointment

(a) need not necessarily be a member of one of the Houses of the Parliament but must become a member of one of the" Houses within six months

(b) need not necessarily be a member of one of the Houses of the Parliament but must become a member of the Lok Sabha within six months

(c) must be a member of one of the Houses of the Parliament

(d) must be a member of the Lok Sabha
183: LMNOP, is a semi-circle with centre at R and diameter LP, LSR and RQP are also semi-circles with centres at T and U and diameters LR = RP = 1/2 LP. The ratio of perimeters of LMNOP and LSRQP is


(a) 0.75 : 1
(b) 1 : 1
(c) 1 : 0.75
(d) 1.25 : 1
184: Match List-I and List-II, Select the correct answer using the code given below the lists:

List-I (Person) List-II (Company)

A. Vishwapati Trivedi 1. Essar Group

B. Tulsi R. Tanti 2.Info Edge India(which runs nakuri.com)

C. Shashi Ruia 3. Indian (Indian Airlines)

D. S. Bikhchandani 4. Suzlon Energy

(A) 3 1 4 2
(B) 2 1 4 3
(C) 3 4 1 2
(D) 2 4 1 3
185: What is/are the purpose/purposes of 'District Mineral Foundations' in India?

1. Promoting mineral exploration activities in mineral-rich districts
2. Protecting the interests of the persons affected by mining operations
3. Authorizing State Governments to issue licences for mineral exploration

Select the correct answer using the code given below.

(a) 1 and 2 only
(b) 2 only
(c) 1 and 3 only
(d) 1, 2 and 3