RRB Junior Engineer (JE) Sample Paper: General Science-35

1. The residue left after extracting juice from sugar beet and sugarcane is called

(a) molasses
(b) bagasse
(c) whey
(d) biomass

2. The isotope of Uranium used in atomic reactors is

(a) U235
(b) U236
(c) U237
(d) U232

3. The greenhouse effect is caused by the higher level of which gas in the atmosphere ?

(a) Carbon monoxide
(b) Carbon dioxide
(c) Nitrous oxide
(d) Sulphur dioxide

4. Candle is a mixture of

(a) Paraffin was and stearic acid
(b) Bees wax and stearic acid
(c) Higher fatty acids and stearic acid
(d) Bees wax and paraffin wax

5. Ethanol containing 5%. water is known as

(a) rectified spirit
(b) denatured spirit
(c) methylated alcohol
(d) power alcohol

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1(b), 2(a), 3(a), 4(a), 5(d)