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Fitter Set-1
Welding
3

Welding MCQ with Answers

3) Which type of fire extinguisher is used in a welding shop ?

Foam type extinguisher

Dry powder extinguisher

Carbon dioxide extinguisher

Halon extinguisher

Answer is:

Carbon dioxide extinguisher

Welding MCQ with Answers

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Related Welding MCQ with Answers

4) The arc utilized in electric arc welding is a

High voltage, high current discharge

Low voltage, low current discharge

Low voltage, high current discharge

High voltage, low current discharge

Answer is:

Low voltage, high current discharge

5) Which one of the following is the type of transformer used in arc welding ?

Step down

Step up

One-to-one

Capable of increasing supply voltage

Answer is:

Step down

6) The welding machine, which is used to convert AC welding supply to DC welding supply is

Motor generator set

Engine generator set

Rectifier set

Welding transformer

Answer is:

Rectifier set

7) In DC welding heat distribution is possible between electrode and the base metal due to the chance of polarity. The distribution of heat is

Positive 2/3 and negative 1/3

Positive 1/3 and negative 2/3

Positive 3/4 and negative 1/4

Positive 1/4 and negative 3/4

Answer is:

Positive 2/3 and negative 1/3

Welding MCQ with Answers

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