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ISRO Technician-B
Welder
ISRO Technician-B Welder 2016
18

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

18) A welder qualification test is to verify

Skill of the welder

The quality of the material

The non-destructive test procedures

The manufacturing method

Answer is:

Skill of the welder

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

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

19) Guided bend test is used to determine:

Ductility

Impact value

Tensile strength

Percentage of elongation

Answer is:

Ductility

20) What is the effect if the tungsten electrode tip melts and deposits in the weld metal?

Poor penetration

Crack

Contamination in weld metal

Lack of fusion

Answer is:

Contamination in weld metal

21) In spot welding process, the size of nugget is controlled by:

Time

Current

Pressure

Electrode contact area

Answer is:

Electrode contact area

22) The probable defect if cast iron is welded without preheating is

Porosity

Blow hole

Under cut

Crack

Answer is:

Crack

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

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