Other Skilled Trades Welding 2

Question 1

What does TIG stand for in TIG welding?

Accepted Answer

Tungsten Inert Gas

Answer

TIG stands for Tungsten Inert Gas, a welding process that uses a non-consumable tungsten electrode and a separate filler rod, shielded by an inert gas.

Question 2

What is the correct shade number for a welding lens when MIG welding at 200 amps?

Accepted Answer

Shade 10

Answer

AWS recommends shade 10 for MIG welding in the 150–250 amp range to protect the eyes from the intense arc light.

Question 3

What type of weld symbol on a blueprint indicates a weld all around the joint?

Accepted Answer

A circle at the junction of the arrow and reference line

Answer

A small circle at the junction of the arrow line and reference line on a weld symbol means the weld is to be made all around the joint.

Question 4

Which defect is caused by insufficient fusion between the weld metal and the base metal?

Accepted Answer

Incomplete fusion

Answer

Incomplete fusion occurs when the weld metal does not properly bond to the base metal or previous weld passes, creating a weak joint.

Question 5

What is the function of flux in Stick (SMAW) welding electrodes?

Accepted Answer

To generate shielding gas and slag to protect the weld pool

Answer

The flux coating on SMAW electrodes burns during welding to create shielding gases and a protective slag layer that shields the molten weld pool from atmospheric contamination.

Other Skilled Trades Practice Test

Other Skilled Trades Practice Test

Other Skilled Trades Welding 2