48) The function of a gas regulator during a gas welding operation is

Get the different types of flames

Mix the gases in the required proportion

Change the volume of gases flowing to the blow pipe

Set the working pressure

Answer is:

Set the working pressure

ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key

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49) The welding position in which an electro slag welding operation is performed is

Flat

Horizontal

Vertical

Overhead

Answer is:

Vertical

50) In braze welding of cast iron, the base metal is heated to a temperature of

300 degree celsius

650 degree Celsius

1000 degree celsius

1300 degree celsius

Answer is:

650 degree Celsius

51) For welding dissimilar metals, which of the following properties should not have wide variations.

Density

Tensile strength

Thermal expansion

Ductility

Answer is:

Thermal expansion

52) Rating of soldering iron normally used for electronics works is in the range

50 - 100 Watts

250 - 500 Watts

500 - 750 Watts

750 - 1000 Watts

Answer is:

50 - 100 Watts

ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key

For more MCQ's Click Here

48) The function of a gas regulator during a gas welding operation is

Set the working pressure

ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key

Related ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key

49) The welding position in which an electro slag welding operation is performed is

Vertical

50) In braze welding of cast iron, the base metal is heated to a temperature of

650 degree Celsius

51) For welding dissimilar metals, which of the following properties should not have wide variations.

Thermal expansion

52) Rating of soldering iron normally used for electronics works is in the range

50 - 100 Watts

ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key