FREE ASME Principles of Welding Questions and Answers

Question 1

Square wave refers to the ____________.

Accepted Answer

shape of the output power

Answer

shape of the filler metal

Answer

shape of the tungsten electrode

Answer

shape of the power source control box

Question 2

Shielding gases are used to protect the molten metal from _______.

Accepted Answer

porosity and brittleness

Answer

being overheated and cooling to fast

Answer

heat and distortion

Answer

being too cold and not penetrating

Question 3

Weld backing is used with a process that uses a separate flux and electrode to _______.

Accepted Answer

support the highly fluid weld pool so it will not fall through the joint

Answer

make the overall weld joint stiffer

Answer

provide more weight to the weldment

Answer

make the material thicker where it is needed

Question 4

If a liquid weld pool is at a very high level of energy, at what approximate temperature will the steel begin to solidify?

Accepted Answer

2780 F

Answer

1333 F

Answer

3200 F

Answer

3780 F

Question 5

__________ is a groove melted into the base metal next to the weld toe or weld root and has not been filled in.

Accepted Answer

Undercut

Answer

Cracks

Answer

Craters

Answer

Under fill

Question 6

If the weld does not combine with another weld or the base metal it is referred to as:

Accepted Answer

incomplete fusion

Answer

incomplete penetration

Answer

incomplete bonding

Answer

incomplete inclusion

Question 7

Which term best describes the operation where a welder or welding operator has control of a molten weld pool and the weld pool has a side-to-side motion that is transverse to the travel direction?

Accepted Answer

Weaving

Answer

Oscillation

Answer

Whipping

Answer

Both A and C

Question 8

A broken surface is being observed. A small pore or inclusion-type discontinuity appears as a round bright area. Which term fits this description?

Accepted Answer

Fisheye

Answer

Nucleation

Answer

Crack

Answer

Spider web

Question 9

Arc time is:

Accepted Answer

the time the arc is on during the arc welding operation.

Answer

the total time the welder is clocked into work.

Answer

the non-arc time.

Answer

the total arc and non-arc time.

Question 10

What is the difference between back and backing welds?

Accepted Answer

Sequence of when the welds are made

Answer

Equipment used

Answer

Materials used

Answer

None of the above