11) The material of pipe lines for a system using Freon as a refrigerant should be

Brass

Copper

Steel

Aluminium

Answer is:

Copper

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

For more MCQ's Click Here

12) Absolute humidity is defined as

Actual mass of air in a unit volume of air and water vapour mixture

Actual mass of water vapour in a unit volume of air

Actual mass of water vapour in a unit volume of air and water vapour mixture

Actual mass of air in a unit volume of water vapour

Answer is:

Actual mass of water vapour in a unit volume of air

13) For unsaturated air, the dew point temperature is ______ wet bulb temperature

Less than

Equal to

More than

none of these

Answer is:

Less than

14) A 240 V, 60 W lamp has a working resistanc of

1400 Ohms

60 Ohms

960 Ohms

325 Ohms

Answer is:

960 Ohms

15) In arc welding, the arc length should be approximately equal to

twice the diameter of electrode rod

1.5 times the rod diameter

diameter of the rod

half the diameter of the rod

Answer is:

diameter of the rod

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

For more MCQ's Click Here

11) The material of pipe lines for a system using Freon as a refrigerant should be

Copper

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

Related ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key

12) Absolute humidity is defined as

Actual mass of water vapour in a unit volume of air

13) For unsaturated air, the dew point temperature is ______ wet bulb temperature

Less than

14) A 240 V, 60 W lamp has a working resistanc of

960 Ohms

15) In arc welding, the arc length should be approximately equal to

diameter of the rod

ISRO Technician-B MRAC Question Paper - 2016 (Set -1) with Answer Key