MSSC Maintenance Awareness Test – Questions
and Correct Answers (Complete Exam
Preparation Guide)
This document contains a full set of MSSC Maintenance Awareness test questions with
their correct answers. It covers key topics such as preventive and predictive maintenance,
shaft alignment, lubrication, bearings, hydraulics, electrical circuits, safety procedures, and
workplace ergonomics. The material is designed to help students and professionals
prepare for the MSSC exam by practicing with realistic question formats and verified
answers.
Torches are designed to avoid mixing oxygen and acetylene by using
__________. - ,,,,answer,,,,..Reverse-flow check valves at torch inlets or
regulator outlets
To prevent leakage around the valve during use, __________ -
,,,,answer,,,,..An oxygen cylinder valve should be opened all the way
An explosion can occur if __________ comes in contact with oil. -
,,,,answer,,,,..High pressure oxygen
A green welding hose normally indicates that this hose carries
__________. - ,,,,answer,,,,..Oxygen
A __________ is a non-destructive test that uses a colored spray to
reveal imperfections in a weld. - ,,,,answer,,,,..dye-penetrant test
A red welding hose indicates that this hose carries __________. -
,,,,answer,,,,..acetylene
,When using the __________ in welding, the electrode should be leaned
15 to 25 degrees in the direction of travel. - ,,,,answer,,,,..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. - ,,,,answer,,,,..Filler
Metals treated by __________ processes become soft. -
,,,,answer,,,,..annealing
Oxy-acetylene welding requires no __________ and is not sensitive to
wind or drafts like Gas Metallic Arc Welding or Gas Tungsten Arc
Welding. - ,,,,answer,,,,..electricity
A magnaflux test is used to show what flaw in ferrous metal? -
,,,,answer,,,,..Cracks in the surface
A spot welding system consists of an electrical supply, moveable
arm, and a(n) __________. - ,,,,answer,,,,..stationary arm
What device should be stored a minimum of 20 feet from flammable
materials? - ,,,,answer,,,,..Oxygen Cylinders
The gas metal arc welding (GMAW) process uses __________ to melt
metal wire and fuse it with the base metal being welded. -
,,,,answer,,,,..Electricity
Circuit testers determine if __________ electricity is present. -
,,,,answer,,,,..AC
A knife switch consists of a lever and one or more sets of __________. -
,,,,answer,,,,..contacts
,The component of an electrical circuit that gives the operator
control is the __________. - ,,,,answer,,,,..input device
The type of current that only flows in one direction is __________. -
,,,,answer,,,,..DC
Constant voltage power supplies will maintain a constant voltage
under varying __________. - ,,,,answer,,,,..loads
10mA would be an example of __________ value. - ,,,,answer,,,,..current
A(n) __________ is used to measure resistance. -
,,,,answer,,,,..ohmmeter
Voltage is a(an) electrical __________. - ,,,,answer,,,,..force
If a wire has continuity, it__________. - ,,,,answer,,,,..will have almost no
resistance
Current in a __________ circuit is divided among the branches of the
circuit. - ,,,,answer,,,,..parallel
As branches are added to a parallel circuit the resistance __________. -
,,,,answer,,,,..decreases
A multimeter is a multipurpose device that can measure _________. -
,,,,answer,,,,..voltage, current, and resistance
In a parallel circuit with a constant voltage power supply, the
voltage drop across each branch is __________. - ,,,,answer,,,,..equal to
the power supply voltage
A(n) __________ circuit is one in which there is more than one path for
current to travel. - ,,,,answer,,,,..parallel
, An ammeter is used to measure __________. - ,,,,answer,,,,..current
The two ways to measure voltage are __________ and __________. -
,,,,answer,,,,..across a component, from a reference
Both analog and digital voltmeters measure __________. -
,,,,answer,,,,..potential difference
When current in a circuit is too high, it is usually the result of too
many loads or a __________. - ,,,,answer,,,,..short circuit
Electrical wiring that runs in exposed locations must be protected
by pipe or tubing called __________. - ,,,,answer,,,,..conduit
The total power in __________ electrical circuit is calculated by finding
the sum of the individual component power consumption. -
,,,,answer,,,,..any
The amount two electrical waveforms are out of phase is measured
in __________. - ,,,,answer,,,,..degrees
The Ohm's Law formula for calculating voltage is __________. -
,,,,answer,,,,..E=I(current)*R(resistance)
What is the power formula? - ,,,,answer,,,,..P = I(current)*E(voltage)
The type of overload protection that protects the motor by
disconnecting it physically instead of electrically is a(n) __________. -
,,,,answer,,,,..overload clutch
The measure of energy consumed by a circuit is called __________. -
,,,,answer,,,,..power
and Correct Answers (Complete Exam
Preparation Guide)
This document contains a full set of MSSC Maintenance Awareness test questions with
their correct answers. It covers key topics such as preventive and predictive maintenance,
shaft alignment, lubrication, bearings, hydraulics, electrical circuits, safety procedures, and
workplace ergonomics. The material is designed to help students and professionals
prepare for the MSSC exam by practicing with realistic question formats and verified
answers.
Torches are designed to avoid mixing oxygen and acetylene by using
__________. - ,,,,answer,,,,..Reverse-flow check valves at torch inlets or
regulator outlets
To prevent leakage around the valve during use, __________ -
,,,,answer,,,,..An oxygen cylinder valve should be opened all the way
An explosion can occur if __________ comes in contact with oil. -
,,,,answer,,,,..High pressure oxygen
A green welding hose normally indicates that this hose carries
__________. - ,,,,answer,,,,..Oxygen
A __________ is a non-destructive test that uses a colored spray to
reveal imperfections in a weld. - ,,,,answer,,,,..dye-penetrant test
A red welding hose indicates that this hose carries __________. -
,,,,answer,,,,..acetylene
,When using the __________ in welding, the electrode should be leaned
15 to 25 degrees in the direction of travel. - ,,,,answer,,,,..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. - ,,,,answer,,,,..Filler
Metals treated by __________ processes become soft. -
,,,,answer,,,,..annealing
Oxy-acetylene welding requires no __________ and is not sensitive to
wind or drafts like Gas Metallic Arc Welding or Gas Tungsten Arc
Welding. - ,,,,answer,,,,..electricity
A magnaflux test is used to show what flaw in ferrous metal? -
,,,,answer,,,,..Cracks in the surface
A spot welding system consists of an electrical supply, moveable
arm, and a(n) __________. - ,,,,answer,,,,..stationary arm
What device should be stored a minimum of 20 feet from flammable
materials? - ,,,,answer,,,,..Oxygen Cylinders
The gas metal arc welding (GMAW) process uses __________ to melt
metal wire and fuse it with the base metal being welded. -
,,,,answer,,,,..Electricity
Circuit testers determine if __________ electricity is present. -
,,,,answer,,,,..AC
A knife switch consists of a lever and one or more sets of __________. -
,,,,answer,,,,..contacts
,The component of an electrical circuit that gives the operator
control is the __________. - ,,,,answer,,,,..input device
The type of current that only flows in one direction is __________. -
,,,,answer,,,,..DC
Constant voltage power supplies will maintain a constant voltage
under varying __________. - ,,,,answer,,,,..loads
10mA would be an example of __________ value. - ,,,,answer,,,,..current
A(n) __________ is used to measure resistance. -
,,,,answer,,,,..ohmmeter
Voltage is a(an) electrical __________. - ,,,,answer,,,,..force
If a wire has continuity, it__________. - ,,,,answer,,,,..will have almost no
resistance
Current in a __________ circuit is divided among the branches of the
circuit. - ,,,,answer,,,,..parallel
As branches are added to a parallel circuit the resistance __________. -
,,,,answer,,,,..decreases
A multimeter is a multipurpose device that can measure _________. -
,,,,answer,,,,..voltage, current, and resistance
In a parallel circuit with a constant voltage power supply, the
voltage drop across each branch is __________. - ,,,,answer,,,,..equal to
the power supply voltage
A(n) __________ circuit is one in which there is more than one path for
current to travel. - ,,,,answer,,,,..parallel
, An ammeter is used to measure __________. - ,,,,answer,,,,..current
The two ways to measure voltage are __________ and __________. -
,,,,answer,,,,..across a component, from a reference
Both analog and digital voltmeters measure __________. -
,,,,answer,,,,..potential difference
When current in a circuit is too high, it is usually the result of too
many loads or a __________. - ,,,,answer,,,,..short circuit
Electrical wiring that runs in exposed locations must be protected
by pipe or tubing called __________. - ,,,,answer,,,,..conduit
The total power in __________ electrical circuit is calculated by finding
the sum of the individual component power consumption. -
,,,,answer,,,,..any
The amount two electrical waveforms are out of phase is measured
in __________. - ,,,,answer,,,,..degrees
The Ohm's Law formula for calculating voltage is __________. -
,,,,answer,,,,..E=I(current)*R(resistance)
What is the power formula? - ,,,,answer,,,,..P = I(current)*E(voltage)
The type of overload protection that protects the motor by
disconnecting it physically instead of electrically is a(n) __________. -
,,,,answer,,,,..overload clutch
The measure of energy consumed by a circuit is called __________. -
,,,,answer,,,,..power
