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Welder
Welder Set-1
Welding Techniques
23

Welding Techniques MCQ with Answers

23) Which type of polarity is used in welding non ferrous metals?

AC Transformer

Reverse polarity

Straight polarity

DC Motor generator

Answer is:

Reverse polarity

Welding Techniques MCQ with Answers

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Related Welding Techniques MCQ with Answers

24) Which is used for arc welding if there is no electric power supply?

Rectifier set

Transformer set

Motor generator set

Engine generator set

Answer is:

Engine generator set

25) What is the angle of electrode while welding in vertical position?

60 Degree to 70 Degree

70 Degree to 80 Degree

80 Degree to 90 Degree

90 Degree to 100 Degree

Answer is:

80 Degree to 90 Degree

26) Which type of arc produces humming sound?

Long arc length

Short arc length

Normal arc length

Too long arc length

Answer is:

Long arc length

27) Which types of arc length used in thin sheet metals?

Long arc length

Short arc length

Medium arc length

Deep short arc length

Answer is:

Short arc length

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