RRB Junior Engineer (JE) Sample Paper: General Science-31

1. The chemical name of Common salt is

(a) Sodium chloride
(b) Sodium nitrate
(c) Ammonium chloride
(d) Calcium chloride

2. Denatured spirit is ethanol mixed with

(a) Petrol
(b) Kerosene
(c) Water
(d) Pyridine

3. The most abundant inert gas in the atmosphere is

(a) Helium
(b) Neon
(c) Argon
(d) Krypton

4. Which metal is extracted from seawater?

(a) Potassium
(b) Magnesium
(c) Aluminium
(d) Beryllium

5. Percentage of lead in lead pencils is

(a) 0
(b) 66
(c) 40
(d) 80

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

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