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Fitter Set-1
Welding
23

Welding MCQ with Answers

23) In a gas cut plate, the cut shows grooves and has deep drag lines. This is due to

tip too close to the cut surface

too much travel speed

less oxygen pressure

smaller size cutting nozzle

Answer is:

tip too close to the cut surface

Welding MCQ with Answers

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24) In a gas cut plate, the cut is high quality although there is some surface roughness caused by vertical drag lines. This is due to

less preheating flame

impure cutting oxygen

too slow cutting speed

smaller size cutting nozzle

Answer is:

too slow cutting speed

25) The size of the cutting nozzle used in oxy-acetylene cutting process depends mainly on

thickness of metal to be cut

purity of oxygen

duration of cut

type of cutting blowpipe

Answer is:

thickness of metal to be cut

26) The size of a welding machine is determined by

Input amperage

Output amperage

Open circuit voltage

Closed circuit voltage

Answer is:

Output amperage

27) Leakage should be checked before using oxy-acetylene welding equipment. What type of water can be used on the acetylene connection ?

Salt Water

Soap Water

Hard Water

Fresh Water

Answer is:

Soap Water

Welding MCQ with Answers

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