2926: What number comes next?
4, 196, 16, 144, 36, 100, 64,...
(a) 36
(b) 100
(c) 80
(d) 64
2927: Which one of the following important trade centres of ancient India was on the trade route connecting Kalyana with Vengi ?
(a) Tagara
(b) Sripura
(c) Tripuri
(d) Tamralipti
2928: Who wrote the book "the story of the Integration of the Indian States"?
(a) C.Rajagopalachari
(b) Krishna Menon
(c) V. P. Menon
(d) B. N. Rao
2929: With reference to 'fly ash' produced by the power plants using coal as fuel, which of the following statements is/are correct?
1. Fly ash can be used in the production of bricks for building construction.
2. Fly ash can be used as a replacement for some of the Portland cement concrete.
3. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements.
Select the correct answer using the code given below.
(a) 1 and 2
(b) 2 only
(c) 1 and 3
(d) 3 only
2930: Dalbergia species is associated with which one of the following ?
(a) Cashew nut
(b) Tea
(c) Coffee
(d) Rosewood