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Welder
Welder Set-1
Gas Metal Arc Welding
93

Gas Metal Arc Welding MCQ with Answers

93) What defect will occur in the weld metal if the arc voltage and travel speed is low in MIG / MAG welding?

Blow hole

Under cut

Wire struck

Weld overlap

Answer is:

Weld overlap

Gas Metal Arc Welding MCQ with Answers

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Related Gas Metal Arc Welding MCQ with Answers

94) What is the effect in MIG / MAG welding for a short stick out distance?

Porosity in weldment

Arc blow in weldment

Less spatter deposit in nozzle

More spatter deposit in nozzle

Answer is:

More spatter deposit in nozzle

95) What is the weld defect if wire feed speed too high?

Porosity

Spatters

Incomplete fusion

Lack of penetration

Answer is:

Spatters

96) Which type of defect is caused if the gas flowing rate is uneven?

Porosity

Distortion

Under cut

Incomplete fusion

Answer is:

Porosity

97) What is the difficulty in starting of arc in GMAW?

Wrong polarity

Unsteady hand

Work piece dirty

Excess of voltage

Answer is:

Wrong polarity

Gas Metal Arc Welding MCQ with Answers

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