MSSC
MSSC Maintenance Awareness Practice Test
Study Questions and Answers 2026
A burn or pungent odor of oil indicates -Correct Answer ✔-excessive temperature
A Chain should be replaced when its length becomes ______longer than the
original length. -Correct Answer ✔-3 percent
A common sign of a misaligned coupling is _____________. -Correct Answer ✔-
excessive vibration
A multimeter is a multipurpose devise that can measure -Correct Answer ✔-
voltage, current, and resistance
A power diagram is used in addition to a ladder diagram to determine_________.
-Correct Answer ✔-All of these (How the input functions on the machine, The
sequence of operations, How the output functions on the machine)
A power tool has the ground prong broken off of the plug on the power cord.
What should be done? -Correct Answer ✔-Remove the power tool from service
A shaft coupling may be out of round if dial indicator shows _____________. -
Correct Answer ✔-any movement
A sight glass in a reservoir usually indicates the ______ of fluid. -Correct Answer
✔-level
A tool should be sharpened -Correct Answer ✔-When an unacceptable surface
finish is present
A viscos meter is a device used for measuring the viscosity of an oil and is
generally _______ accurate. -Correct Answer ✔-95%-99%
MSSC
, MSSC
A well designed workstation places tools and equipment where they can be -
Correct Answer ✔-available with minimum stress
A workstation should be designed to minimize motions that can -Correct Answer
✔-cause repetitive/ stress injuries
All documentation of preventive maintenance should be kept -Correct Answer ✔-
in a designated, safe and secure location
An electrical diagram that arranges wires of a circuit into order rows is called a(n)
_____________. -Correct Answer ✔-ladder diagram
An employee come to work on a rainy day and finds water dripping on tools in
their workstation. What should the employee do first? -Correct Answer ✔-report
the situation to the supervisor
Because dial indicators are fairly delicate, they should _________ during
adjustment of the motor position. -Correct Answer ✔-be removed
Before adjusting motor position during a shaft alignment always make sure to
remove the _____________. -Correct Answer ✔-dial indicator
Both analog and digital voltmeters measure -Correct Answer ✔-Potential
difference
Circuit testers determine if ______ electricity is present. -Correct Answer ✔-AC
Daily maintenance involves daily records because -Correct Answer ✔-Recurring
events can be analyzed to troubleshoot problems Records indicate how long a
machine will run without lubrication
Devises called ____________ often serve as the brains of the automated machine.
-Correct Answer ✔-relays
MSSC
MSSC Maintenance Awareness Practice Test
Study Questions and Answers 2026
A burn or pungent odor of oil indicates -Correct Answer ✔-excessive temperature
A Chain should be replaced when its length becomes ______longer than the
original length. -Correct Answer ✔-3 percent
A common sign of a misaligned coupling is _____________. -Correct Answer ✔-
excessive vibration
A multimeter is a multipurpose devise that can measure -Correct Answer ✔-
voltage, current, and resistance
A power diagram is used in addition to a ladder diagram to determine_________.
-Correct Answer ✔-All of these (How the input functions on the machine, The
sequence of operations, How the output functions on the machine)
A power tool has the ground prong broken off of the plug on the power cord.
What should be done? -Correct Answer ✔-Remove the power tool from service
A shaft coupling may be out of round if dial indicator shows _____________. -
Correct Answer ✔-any movement
A sight glass in a reservoir usually indicates the ______ of fluid. -Correct Answer
✔-level
A tool should be sharpened -Correct Answer ✔-When an unacceptable surface
finish is present
A viscos meter is a device used for measuring the viscosity of an oil and is
generally _______ accurate. -Correct Answer ✔-95%-99%
MSSC
, MSSC
A well designed workstation places tools and equipment where they can be -
Correct Answer ✔-available with minimum stress
A workstation should be designed to minimize motions that can -Correct Answer
✔-cause repetitive/ stress injuries
All documentation of preventive maintenance should be kept -Correct Answer ✔-
in a designated, safe and secure location
An electrical diagram that arranges wires of a circuit into order rows is called a(n)
_____________. -Correct Answer ✔-ladder diagram
An employee come to work on a rainy day and finds water dripping on tools in
their workstation. What should the employee do first? -Correct Answer ✔-report
the situation to the supervisor
Because dial indicators are fairly delicate, they should _________ during
adjustment of the motor position. -Correct Answer ✔-be removed
Before adjusting motor position during a shaft alignment always make sure to
remove the _____________. -Correct Answer ✔-dial indicator
Both analog and digital voltmeters measure -Correct Answer ✔-Potential
difference
Circuit testers determine if ______ electricity is present. -Correct Answer ✔-AC
Daily maintenance involves daily records because -Correct Answer ✔-Recurring
events can be analyzed to troubleshoot problems Records indicate how long a
machine will run without lubrication
Devises called ____________ often serve as the brains of the automated machine.
-Correct Answer ✔-relays
MSSC
