RRB Junior Engineer (JE) Sample Paper: General Science-21

1. A polymeric substance used to make parachute is

(a) Rayon
(b) Viscose
(c) Cotton
(d) Terylene

2. Drinking soda is

(a) Alkaline
(b) Acidic
(c) Neutral
(d) Oxidant (BSC

3. The cathode of a lead storage battery is made up of

(a) Zinc
(b) Lead
(c) Lead oxide
(d) Manganese dioxide

4. Which one of the following is radioactive ?

(a) Cesium
(b) Platinum
(c) Strontium
(d) Thorium

5. Aluminum can be purified by

(a) oxidation
(b) distillation
(c) electrolysis
(d) ozonolysis

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

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