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WELDING
Set 4
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Q10543
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Which acid is used as a flux for stainless steel in soldering?
A
Hydrochloric acid
B
Nitric acid
C
Phosphoric acid
D
Sulphuric acid
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Which flux is used in iron and steel while brazing?
A
Mixture of 70% borax powder with 30% boric acid
B
Mixture of 75% borax powder with 25% boric acid
C
Mixture of 80% borax powder with 20% boric acid
D
Mixture of 85% borax powder with 15% boric acid
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What is the name of brazing if parts to be brazed are submerged in a molten or chemical both?
A
Induction brazing
B
Dip brazing
C
Furnace brazing
D
Torch brazing
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Which one is closed first while shutdown oxy-acetylene plant?
A
Oxygen cylinder valve closed first
B
Acetylene cylinder valve closed first
C
Blow pipe oxygen valve closed first
D
Blow pipe actylene valve closed first
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What is the angle of blow pipe held in right ward welding?
A
Blow pipe held at an angle of 40 Degree- 50 Degree
B
Blow pipe held at an angle of 30 Degree- 40 Degree
C
Blow pipe held at an angle of 20 Degree- 30 Degree
D
Blow pipe held at an angle of 10 Degree- 20 Degree
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