Mechanical Engineering Track Study
questions 2026-2027 Questions And
Answers Latest 160+ Scenario Based
Practice Questions with Detailed
1. ____________ arc welding does not require external
shielding gas, which makes it more portable than other
welding processes.
a. Plasma
b. Gas tungsten
c. Flux cored
d. Shielded metal
D. shielded metal
2. _____________ welding is the most commonly used
oxyfuel gas welding process.
a. Oxyacetylene
b. Propane
c. Hydrogen
d. Methylaceylene- propadiene
A. oxyacetylene
,3. The ________ welding process is used primarily for
high-production welding.
a. Oxyacetylene
b. Shielded metal arc
c. Gas tungsten arc
d. Gas metal arc
D. Gas metal arc
1. The gas metal arc welding process ______________.
a. Uses oxygen as a shielding gas
b. Deposits weld metal at a slower rate than shielded
metal arc welding
c. Uses a continuous wire electrode
d. Can be used with or without filler meal
C. uses a continous wire electrode
5. __________ refers to the way the molten filler metal
crosses the arc to become part of the weld.
a. Metal transfer
b. Flux
c. Fabrication
d. Shielding
A. metal transfer
,6. When using oxygen and acetylene cylinders, open the
valves _______.
a. Quickly
b. Slowly
c. With a pair of pliers
d. At least three time
B. slowly
7. The maximum safe operating pressure for acetylene
is ______ PSI.
a. 2
b. 5
c. 10
d. 15
D.15
8. All wind or air movement (ventilation) should be
________ the body.
a. Above
b. In front of
c. Behind
d. Across
D. across
, 9. A respirator is used when welding metals that give off
______ fumes.
a. Toxic
b. Flammable
c. Corrosive
d. Combustible
A. toxic
10. _______ should be worn to protect the face from
metal particles when grinding.
a. Safety glasses
b. Arc welding masks
c. Goggles
d. Face shields
D. face shields
11. The ________ is the area where filler metal
intersects the base metal and extend the furthest into
the welding joint.
a. Weld root
b. Weld leg
c. Root pass
d. Joint root
A. weld root
questions 2026-2027 Questions And
Answers Latest 160+ Scenario Based
Practice Questions with Detailed
1. ____________ arc welding does not require external
shielding gas, which makes it more portable than other
welding processes.
a. Plasma
b. Gas tungsten
c. Flux cored
d. Shielded metal
D. shielded metal
2. _____________ welding is the most commonly used
oxyfuel gas welding process.
a. Oxyacetylene
b. Propane
c. Hydrogen
d. Methylaceylene- propadiene
A. oxyacetylene
,3. The ________ welding process is used primarily for
high-production welding.
a. Oxyacetylene
b. Shielded metal arc
c. Gas tungsten arc
d. Gas metal arc
D. Gas metal arc
1. The gas metal arc welding process ______________.
a. Uses oxygen as a shielding gas
b. Deposits weld metal at a slower rate than shielded
metal arc welding
c. Uses a continuous wire electrode
d. Can be used with or without filler meal
C. uses a continous wire electrode
5. __________ refers to the way the molten filler metal
crosses the arc to become part of the weld.
a. Metal transfer
b. Flux
c. Fabrication
d. Shielding
A. metal transfer
,6. When using oxygen and acetylene cylinders, open the
valves _______.
a. Quickly
b. Slowly
c. With a pair of pliers
d. At least three time
B. slowly
7. The maximum safe operating pressure for acetylene
is ______ PSI.
a. 2
b. 5
c. 10
d. 15
D.15
8. All wind or air movement (ventilation) should be
________ the body.
a. Above
b. In front of
c. Behind
d. Across
D. across
, 9. A respirator is used when welding metals that give off
______ fumes.
a. Toxic
b. Flammable
c. Corrosive
d. Combustible
A. toxic
10. _______ should be worn to protect the face from
metal particles when grinding.
a. Safety glasses
b. Arc welding masks
c. Goggles
d. Face shields
D. face shields
11. The ________ is the area where filler metal
intersects the base metal and extend the furthest into
the welding joint.
a. Weld root
b. Weld leg
c. Root pass
d. Joint root
A. weld root
