PLASMA ARC CUTTING AND RESISTANCE WELDING - Practice Mode

1) What is the temperature in the weld area plasma arc welding process?

15,000 Degree K to 20,000 Degree K 20,000 Degree K to 30,000 Degree K 30,000 Degree K to 35,000 Degree K 35,000 Degree K to 40,000 Degree K

Correct Answer: 15,000 Degree K to 20,000 Degree K

2) What material is used to make electrode in spot welding?

Iron electrode Copper alloy electrodes Silicon electrodes Cast iron electrodes

Correct Answer: Copper alloy electrodes

3) Which resistance welding machine is provided with an electrode in wheel shape?

Spot welding Seam welding Projection welding Flash butt welding

Correct Answer: Seam welding

4) Which welding process effects weld joints under heavy pressure, with supply cut off?

Flash-butt welding Fusion welding Thermit welding Spot welding

Correct Answer: Flash-butt welding

5) Which resistance welding process produces a bulge at weld joint?

Flash butt Spot Seam Projection

Correct Answer: Flash butt

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