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ISRO Technician-B
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ISRO Technician-B Welder 2016
19

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

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

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

23) The purpose of setting root gap in a butt weld joint is:

To control distortion

To obtain required depth of fusion

To maintain the alignment

To deposit more metal

Answer is:

To obtain required depth of fusion

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

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