Preview Questions Welder | Role Specific Skill

Question 1: What is the primary difference between MIG welding and TIG welding in terms of heat input?

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TIG welding has a higher heat input than MIG welding

Neither affects the heat input significantly

Both have the same heat input

MIG welding has a higher heat input than TIG welding

Question 2: How do you prevent porosity in the finished weld when working with dirty metal surfaces?

Which action should you take?

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Use a higher welding current

Weld faster to avoid exposure to contaminants

Increase the shielding gas flow rate

Ensure the surface is clean and dry before welding

Question 3: What is the most critical factor in setting up a welding machine for fieldwork on construction sites?

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Gas pressure and shielding gas type

Cooling system performance

Local power supply compatibility

Voltage regulation and wire feed speed

Question 4: When preparing a surface for welding, why is it important to remove mill scale from steel?

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It has no impact on welding

It ensures a stronger weld bond

It enhances weld bead aesthetics

It reduces electrical conductivity

Question 5: What does the duty cycle of a welding machine refer to?

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The maximum current the machine can handle

The thickness of the material the machine can weld

The number of joints the machine can weld per day

The time the machine can weld without overheating

Question 6: If a blueprint indicates a weld length of 200mm and weld spacing of 10mm, how would this affect your welding process?

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It defines the penetration depth

It indicates the total length of weld needed

It outlines the torch angle

It specifies how often to place weld beads