2721: '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
2722: In a group of six women there are four dancers, four vocal musicians, one actress and three violinists. Girija and Vanaja are among the violinists while Jalaja and Shailaja do not know how to play on the violin. Shailaja and Tanuja are among the dancers. Jalaja, Vanaja, Shailaja and Tanuja are all vocal musicians and two of them are also violinists. If Pooja is an actress who among the following is both a dancer and a violinists ?
(a) Jalaja
(b) Shailaja
(c) Tanuja
(d) Pooja
2723: With reference to Pondicherry (now Puducherry), consider the following statements:
1. The first European power to occupy Pondicherry were the Portuguese.
2. The second European power to occupy Pondicherry were the French.
3. The English never occupied Pondicherry.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
2724: Assertion (A) :
An iron ball floats on mercury but gets immersed in water.
Reason (R) :
The specific gravity of iron is more than that of mercury.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
2725: Influence of genes in controlling the activity of living organisms is through:
(a) Photosynthesis
(b) Protein synthesis
(c) Vitamins
(d) Hormones