MSSC MAINTENANCE AWARENESS EXAM AND STUDY GUIDE
150 QUESTIONS AND CORTRECT ANSWERS 2024-2025
LATEST//GRADED A+
Torches are designed to avoid mixing oxygen and acetylene by using __________. - ANS-Reverse-flow
check valves at torch inlets or regulator outlets
To prevent leakage around the valve during use, __________ - ANS-An oxygen cylinder valve should be
opened all the way
An explosion can occur if __________ comes in contact with oil. - ANS-High pressure oxygen
A green welding hose normally indicates that this hose carries __________. - ANS-Oxygen
A __________ is a non-destructive test that uses a colored spray to reveal imperfections in a weld. -
ANS-dye-penetrant test
A red welding hose indicates that this hose carries __________. - ANS-acetylene
When using the __________ in welding, the electrode should be leaned 15 to 25 degrees in the
direction of travel. - ANS-pull technique
__________ metal is a metal 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. - ANS-Filler
Metals treated by __________ processes become soft. - ANS-annealing
Oxy-acetylene welding requires no __________ and is not sensitive to wind or drafts like Gas Metallic
Arc Welding or Gas Tungsten Arc Welding. - ANS-electricity
A magnaflux test is used to show what flaw in ferrous metal? - ANS-Cracks in the surface
, A spot welding system consists of an electrical supply, moveable arm, and a(n) __________. - ANS-
stationary arm
What device should be stored a minimum of 20 feet from flammable materials? - ANS-Oxygen Cylinders
The gas metal arc welding (GMAW) process uses __________ to melt metal wire and fuse it with the
base metal being welded. - ANS-Electricity
Circuit testers determine if __________ electricity is present. - ANS-AC
A knife switch consists of a lever and one or more sets of __________. - ANS-contacts
The component of an electrical circuit that gives the operator control is the __________. - ANS-input
device
The type of current that only flows in one direction is __________. - ANS-DC
Constant voltage power supplies will maintain a constant voltage under varying __________. - ANS-
loads
10mA would be an example of __________ value. - ANS-current
A(n) __________ is used to measure resistance. - ANS-ohmmeter
Voltage is a(an) electrical __________. - ANS-force
If a wire has continuity, it__________. - ANS-will have almost no resistance
Current in a __________ circuit is divided among the branches of the circuit. - ANS-parallel
150 QUESTIONS AND CORTRECT ANSWERS 2024-2025
LATEST//GRADED A+
Torches are designed to avoid mixing oxygen and acetylene by using __________. - ANS-Reverse-flow
check valves at torch inlets or regulator outlets
To prevent leakage around the valve during use, __________ - ANS-An oxygen cylinder valve should be
opened all the way
An explosion can occur if __________ comes in contact with oil. - ANS-High pressure oxygen
A green welding hose normally indicates that this hose carries __________. - ANS-Oxygen
A __________ is a non-destructive test that uses a colored spray to reveal imperfections in a weld. -
ANS-dye-penetrant test
A red welding hose indicates that this hose carries __________. - ANS-acetylene
When using the __________ in welding, the electrode should be leaned 15 to 25 degrees in the
direction of travel. - ANS-pull technique
__________ metal is a metal 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. - ANS-Filler
Metals treated by __________ processes become soft. - ANS-annealing
Oxy-acetylene welding requires no __________ and is not sensitive to wind or drafts like Gas Metallic
Arc Welding or Gas Tungsten Arc Welding. - ANS-electricity
A magnaflux test is used to show what flaw in ferrous metal? - ANS-Cracks in the surface
, A spot welding system consists of an electrical supply, moveable arm, and a(n) __________. - ANS-
stationary arm
What device should be stored a minimum of 20 feet from flammable materials? - ANS-Oxygen Cylinders
The gas metal arc welding (GMAW) process uses __________ to melt metal wire and fuse it with the
base metal being welded. - ANS-Electricity
Circuit testers determine if __________ electricity is present. - ANS-AC
A knife switch consists of a lever and one or more sets of __________. - ANS-contacts
The component of an electrical circuit that gives the operator control is the __________. - ANS-input
device
The type of current that only flows in one direction is __________. - ANS-DC
Constant voltage power supplies will maintain a constant voltage under varying __________. - ANS-
loads
10mA would be an example of __________ value. - ANS-current
A(n) __________ is used to measure resistance. - ANS-ohmmeter
Voltage is a(an) electrical __________. - ANS-force
If a wire has continuity, it__________. - ANS-will have almost no resistance
Current in a __________ circuit is divided among the branches of the circuit. - ANS-parallel
