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ISRO Technician-B
Welder
ISRO Technician-B Welder 2017
27

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

27) In which type of welding, molten metal is poured to join the metals

GMAW

GTAW

Thermit welding

Gas welding

Answer is:

Thermit 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

28) During a metal cutting operation using an oxy-acetylene flame, the metal is cut due to

Molecular transfer

Intensive oxidation

Evaporation of metal

Burning of metal

Answer is:

Intensive oxidation

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

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

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

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