RRB JE Mechanical Question Paper 2014 (Set-2) with Answers

RRB JE Mechanical Question Paper 2014 (Set-2) with Answers

121) The organic acid present in vinegar is

Answer is:

Ethanoic acid

Explanation:

Vinegar contains acetic acid. Acetic acid is also called ethanoic acid. Since acetic acid is the primary component present, the chemical formula of vinegar is the same.

122) For a Broad gauge route with M+7 sleeper density, the number of sleepers per rail length is

Answer is:

20

Explanation:

Sleeper density = M+x
where M= Rail length
For broad gauge Rail length is equal to 12.8 approximately equal to 13m
M +7= 13+7=20

123) A body of mass 20 kg is dropped from a height of 2 m. If g is taken as 10 m/ square second, the kinetic energy of the body, just before striking the ground, will be

Answer is:

400 J

124) An accurate ammeter must have a resistance of

Answer is:

Very low value

125) A shopkeeper says he sells his goods at cost price, but he uses weight of 800 gms instead of 1 kg. Thus he makes a gain of

Answer is:

121) The organic acid present in vinegar is

Ethanoic acid

122) For a Broad gauge route with M+7 sleeper density, the number of sleepers per rail length is

20

123) A body of mass 20 kg is dropped from a height of 2 m. If g is taken as 10 m/ square second, the kinetic energy of the body, just before striking the ground, will be

400 J

124) An accurate ammeter must have a resistance of

Very low value

125) A shopkeeper says he sells his goods at cost price, but he uses weight of 800 gms instead of 1 kg. Thus he makes a gain of

25%