MSSC MAINTENANCE AWARENESS EXAM 2024-
2025 ACTUAL EXAM 150 QUESTIONS AND
CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
Terms in this set (148)
Torches are designed to Reverse-flow check valves at torch inlets or regulator
avoid mixing oxygen and outlets
acetylene by using __________.
To prevent leakage around An oxygen cylinder valve should be opened all the way
the valve during use,
__________
An explosion can occur if High pressure oxygen
__________ comes in contact
with oil.
A green welding hose Oxygen
normally indicates that this
hose carries __________.
A __________ is a non- dye-penetrant test
destructive test that uses a
colored spray to reveal
imperfections in a weld.
A red welding hose acetylene
indicates that this hose
carries __________.
, When using the __________ in pull technique
welding, the electrode
should be leaned 15 to 25
degrees in the direction of
travel.
__________ metal is a metal Filler
similar in composition to the
metal being joined. It
strengthens the weld by
filling the gap created
between the two pieces of
metal during welding.
Metals treated by __________ annealing
processes become soft.
Oxy-acetylene welding electricity
requires no __________ and is
not sensitive to wind or
drafts like Gas Metallic Arc
Welding or Gas Tungsten
Arc Welding.
A magnaflux test is used to Cracks in the surface
show what flaw in ferrous
metal?
A spot welding system stationary arm
consists of an electrical
supply, moveable arm, and
a(n) __________.
What device should be Oxygen Cylinders
stored a minimum of 20 feet
from flammable materials?
2025 ACTUAL EXAM 150 QUESTIONS AND
CORRECT DETAILED ANSWERS WITH
RATIONALES (VERIFIED ANSWERS)
Terms in this set (148)
Torches are designed to Reverse-flow check valves at torch inlets or regulator
avoid mixing oxygen and outlets
acetylene by using __________.
To prevent leakage around An oxygen cylinder valve should be opened all the way
the valve during use,
__________
An explosion can occur if High pressure oxygen
__________ comes in contact
with oil.
A green welding hose Oxygen
normally indicates that this
hose carries __________.
A __________ is a non- dye-penetrant test
destructive test that uses a
colored spray to reveal
imperfections in a weld.
A red welding hose acetylene
indicates that this hose
carries __________.
, When using the __________ in pull technique
welding, the electrode
should be leaned 15 to 25
degrees in the direction of
travel.
__________ metal is a metal Filler
similar in composition to the
metal being joined. It
strengthens the weld by
filling the gap created
between the two pieces of
metal during welding.
Metals treated by __________ annealing
processes become soft.
Oxy-acetylene welding electricity
requires no __________ and is
not sensitive to wind or
drafts like Gas Metallic Arc
Welding or Gas Tungsten
Arc Welding.
A magnaflux test is used to Cracks in the surface
show what flaw in ferrous
metal?
A spot welding system stationary arm
consists of an electrical
supply, moveable arm, and
a(n) __________.
What device should be Oxygen Cylinders
stored a minimum of 20 feet
from flammable materials?
