RRB Junior Engineer (JE) Sample Paper: General Science-9

1. The shape of our milky way galaxy is

(a) circular
(b) elliptical
(c) spiral
(d) None of the above

2. The different colours of different stars are due to the variation of

(a) temperature
(b) pressure
(c) density
(d) radiation from them

3. Wollen clothes keep the body warm because

(a) Wool increases the temperature of the body
(b) Wool is a bad conductor
(c) Wool absorbs radiant heat from outer objects
(d) Wool rejects heat from the outer objects

4. If the length of a simple pendulum is halved then its period of oscillation is

(a) doubled
(b) halved
(c) increased by a factor
(d) decreased by a factor

5. Mist is caused by

(a) dry ice
(b) ice at low temperature
(c) water vapour at low temperature
(d) carbon monoxide in solid form

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Study Kit for RRB Junior Engineer EXAM (Phase-1) 

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