WCL Welding Processes & Techniques

Question 1

What is the primary purpose of welding?

Accepted Answer

Join metal parts by fusion

Answer

Cut metal parts

Answer

Paint metal surfaces

Answer

Polish metal parts

Question 2

Which welding process uses a non-consumable tungsten electrode?

Accepted Answer

TIG welding

Answer

MIG welding

Answer

Stick welding

Answer

Oxy-fuel welding

Question 3

What is the role of shielding gas in welding?

Accepted Answer

Protect weld pool from contamination

Answer

Cool the metal

Answer

Add strength to weld

Answer

Clean metal surfaces

Question 4

Which welding process is also called Shielded Metal Arc Welding (SMAW)?

Accepted Answer

Stick welding

Answer

TIG welding

Answer

MIG welding

Answer

Flux-cored arc welding

Question 5

What safety equipment is essential during welding?

Accepted Answer

Welding helmets and gloves

Answer

Regular glasses

Answer

Open shoes

Answer

No protection needed

Question 6

What is porosity in a weld?

Accepted Answer

Gas pockets causing weakness

Answer

Surface cracks

Answer

Excess filler metal

Answer

Smooth surface finish

Question 7

Which welding process uses a continuous wire electrode?

Accepted Answer

MIG welding

Answer

Stick welding

Answer

TIG welding

Answer

Oxy-fuel welding

Question 8

Why is preheating metal important before welding?

Accepted Answer

Reduces thermal shock

Answer

Increases porosity

Answer

Makes weld weaker

Answer

Removes shielding gas

Question 9

What causes weld spatter?

Accepted Answer

Molten metal droplets

Answer

Cool gas flow

Answer

Incorrect electrode size

Answer

Excessive welding speed