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

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

86) 140 litres of acid contains 90% acid and rest water. The amount of water added to make the water 12.5% of the resulting mixture is

Answer is:

4 litres

87) For thyristors pulse triggering is preferred to dc triggering because

Answer is:

All of these

88) Hard copy means

Answer is:

Output on printer

89) The atomic number of an element is determined by

Answer is:

The number of protons in one atom

Explanation:

The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).

90) A semi conductor Read Only Memory basically is

Answer is:

86) 140 litres of acid contains 90% acid and rest water. The amount of water added to make the water 12.5% of the resulting mixture is

4 litres

87) For thyristors pulse triggering is preferred to dc triggering because

All of these

88) Hard copy means

Output on printer

89) The atomic number of an element is determined by

The number of protons in one atom

90) A semi conductor Read Only Memory basically is

a combinational logic circuit