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ISRO Technician-B
Welder
ISRO Technician-B Welder 2017
29

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

29) Welding of steel structures on-site of a building is done by

Spot welding

Arc welding

Projection welding

Thermit welding

Answer is:

Arc welding

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

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

30) Main criteria for selection of electrode in an arc welding process is

Material beign welded

Type of welding process

Thickness of material

Welding parameters used

Answer is:

Thickness of material

31) In arc welding process, the current employed is decided by

Size of the electrode

Thickness of the material

Length of weldment

Speed of welding

Answer is:

Size of the electrode

32) In manual GTAW process, the angle of the electrode holder with the direction of welding is normally

30 degree

45 degree

70 degree

90 degree

Answer is:

70 degree

33) Arc length in an arc welding process should be nearly equal to

Diameter of the electrode (d)

1.5 d

2d

3d

Answer is:

Diameter of the electrode (d)

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

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