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Fitter Set-1
Welding
16

Welding MCQ with Answers

16) Which fuel gas is used for cutting in deep under water ?

Acetylene

Hydrogen

LPG

Methane

Answer is:

Hydrogen

Welding MCQ with Answers

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Related Welding MCQ with Answers

17) If L (mm) is the length of the inner cone of the flame, the tip-to-metal distance should be

L mm

L + 2 mm

L + 4 mm

L + 6 mm

Answer is:

L + 2 mm

18) The correct flame for preheating before cutting is

oxidizing flame

neutral flame

carburizing flame

slightly carburizing flame

Answer is:

neutral flame

19) While gas cutting the nozzle should

almost touch the work

be 10 mm away from the work

be 2 mm away from the work

be 5 mm away from the work

Answer is:

be 5 mm away from the work

20) If the blowpipe is moved to and fro frequently while cutting the kerf will

be more

of correct size

be less

not be affected

Answer is:

be more

Welding MCQ with Answers

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