Welding Practice Test 2025 EDITION Latest
Update 2025-2026 Questions and 100% Verified
Correct Answers Guaranteed A+
1. What is the major function of the coating on an
arc welding electrode?
a. Acts as a scavenger, removes oxides and
impurities
b. Influences incomplete penetration
c. Liquefies the base metal
d. Adds moisture and accelerates the cooling
rate
2. Square wave refers to the ____________.
a. shape of the filler metal
b. shape of the tungsten electrode
c. shape of the output power
d. shape of the power source control box
3. Shielding gases are used to protect the molten metal from _______.
a. being overheated and cooling to fast
b. porosity and brittleness
c. heat and distortion
d. being too cold and not penetrating
, 4. Weld backing is used with a process that uses a separate flux and electrode to _______
.
a. make the overall weld joint stiffer
b. provide more weight to the weldment
c. make the material thicker where it is needed
d. support the highly fluid weld pool so it will not fall through the joint
5. _________ is the weight of a volume of material compared with an equal volume of
water.
a. Mass
b. Density
c. Specific gravity
d. Heft
6. A medium carbon steel has a carbon content of what percentage range?
a. 0.05% to 0.15%
b. 0.16% to 0.60%
c. 0.60% to 1.70%
d. 1.70% to 2.15%
7. If a liquid weld pool is at a very high level of energy, at what approximate temperature
will the steel begin to solidify?
a. 1333 F
b. 2780 F
c. 3200 F
d. 3780 F
Update 2025-2026 Questions and 100% Verified
Correct Answers Guaranteed A+
1. What is the major function of the coating on an
arc welding electrode?
a. Acts as a scavenger, removes oxides and
impurities
b. Influences incomplete penetration
c. Liquefies the base metal
d. Adds moisture and accelerates the cooling
rate
2. Square wave refers to the ____________.
a. shape of the filler metal
b. shape of the tungsten electrode
c. shape of the output power
d. shape of the power source control box
3. Shielding gases are used to protect the molten metal from _______.
a. being overheated and cooling to fast
b. porosity and brittleness
c. heat and distortion
d. being too cold and not penetrating
, 4. Weld backing is used with a process that uses a separate flux and electrode to _______
.
a. make the overall weld joint stiffer
b. provide more weight to the weldment
c. make the material thicker where it is needed
d. support the highly fluid weld pool so it will not fall through the joint
5. _________ is the weight of a volume of material compared with an equal volume of
water.
a. Mass
b. Density
c. Specific gravity
d. Heft
6. A medium carbon steel has a carbon content of what percentage range?
a. 0.05% to 0.15%
b. 0.16% to 0.60%
c. 0.60% to 1.70%
d. 1.70% to 2.15%
7. If a liquid weld pool is at a very high level of energy, at what approximate temperature
will the steel begin to solidify?
a. 1333 F
b. 2780 F
c. 3200 F
d. 3780 F
