1986: Consider the following crops of India :

1. Groundnut

2. Sesamum

3. Pearl millet

Which of the above is/are predominantly rainfed crop/crops?

(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
1987: 'Net metering' is sometimes seen in the news in the context of promoting the

(a) production and use of solar energy by the households/consumers
(b) use of piped natural gas in the kitchens of households
(c) installation of CNG kits in motor-cars
(d) installation of water meters in urban households
1988: With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)?

1. LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
2. LTE is data-only technology and VoLTE is voice-only technology.

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
1989: Sepoy mutiny of 1857 failed due to the:

(a) Lack of effective organisation

(b) Lack of unity of purpose

(c) Lack of unified system of leadership

(d) All of the above
1990: The Harappans did not know the use of

(a) Bronze

(b) Gold

(c) Iron

(d) Silver