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Welder
GAS METAL ARC WELDING
Set 21
Set 21
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Q13106
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What is the name of the welding defect, with weld metal contracting during welding process?
A
Distortion
B
Excessive penetration
C
Lack of penetration
D
Porosity
Q13107
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What is the name of the defect occuring to an unsteady hand in GMAW?
A
Over fusion
B
Burn through
C
Distortion
D
Waviness of bead
Q13108
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What defects occurs to a weld joint, if it is provided with insufficient heat input?
A
Lack of fusion
B
Lack of penetration
C
Lack of metal deposit
D
Uneven bead deposit
Q13109
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What gas combination will reduce spatter defect and improve arc stability in a MIG/MAG welding process?
A
CO2 / Neon
B
Argon / CO2
C
Helium CO2
D
Argon / CO2 / O2
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