WorksheetsMaintenance Exam
Total questions: 87
Worksheet time: 44mins
Circuit testers determine if ______ electricity is present
AC
DC
BC
Any
In a Predictive Maintenance (PM) audit, the ______ would likely be negatively impacted if there were a large number of uncompleted PM work orders.
Circus path
Circuit path
Critical path
Citrus path
Which of the following is a goal of Total Productive Maintenance (TPM)?
All work
No play
zero breakdowns and defects
SDS file
Make
Money
A chain should be replaced when its length becomes _______ longer than the original length.
5%
3%
2%
10%
Prior to shutting down a machine for preventive maintenance, the maintenance technician must
Clear out anybody that in the area
Tell supervisor
Lock out/ Tag out
remove all the debris and sediment from the machine
Where would a worker find information regarding the handling of all lubricants and safety precautions
OSHA
PDF file
SDS file
Company Website
When lubricating a bearing, the worst mistake would be to
Get dirt in the bearing
Clean the bearing
Break the bearing
Get the bearing sick
The most obvious indicator that V-belt pulleys are worn beyond usefulness is when the
Belt have some dirt in it
Belt is touching the bottom of the groove
Belt is shape as a V
Dirt gets on the bearing
Which of the following is a key planned maintenance activity
Eat the equipment
Use equipment correctly
Strategize equipment
lubricate equipment
Preventive maintenance schedules would commonly include
frequency
schedule
equipment
Need for speed
It is important to have a/an ________ for closure of Preventative Maintenance work orders
Preventive
Right tools
Idea
completion date
Often, the employee closing out the PM work order also verifies that
Reactive
maintenance was
completed
preventive maintenance was completed
Predictive
maintenance was
completed
maintenance was
completed
Scheduled replacement of minor parts that tend to wear quickly is an important part of __________ maintenance.
preventive
Reactive
Which of the following would be classified as an unplanned downtime maintenance activity?
preventive maintenance
unplanned
maintenance
reactive maintenance
surprise maintenance
All documentation of preventive maintenance should be kept
in a folder
in a designated, safe and secure location
in an area where you can see them
in the trash
Making sure that a motor shaft is level
increases the number of needed shims
reduces the number of needed shims
When checking for out of round, any movement of the dial indicates that the
shaft may be lacking lubrication
shaft may be misplaced
shaft may be out of round
Follow up work created after preventive maintenance (PM) is considered
Preventive
predictive
Premeasure
Premade
Daily maintenance involves daily records because
recurring events can be analyzed to troubleshoot problems
new events can happen at anytime
A machine is expected to have downtime throughout several shifts. What is the appropriate communication between shifts for lock out/tag out procedures?
Write a note with information
Tell your friend
Go ahead without informing anyone
send a companywide email, maintenance people should check for energy and change locks
To ensure proper alignment of motors with mating equipment the first step is to
Check if structure is secure
Check shaft runout
Check measurement
A tool should be resharpened
never
When it begins to look dull
after each use
at the end of the day
What does the PDCA cycle stand for?
plan-do-check-act
Please-Don't-Cook-Amy
plan-don't-check-act
plan-deicide-check-act
Misaligned couplings can cause _________ in machinery
Misaligned
Unbalanced
Disarray
vibration
A sight glass in a reservoir usually indicates the _________ of fluid
Measurement
Safe
Level
level
amount
For purposes of an oil analysis, one important category of information will be the
oil viscosity
oil rigs
oil Statics
oil changes
If a motor starts blowing fuses or tripping thermals, the most likely cause is
high voltage to the motor
high temperature to the motor
The procedure for identifying machine components failure prior to major breakdown is referred to as a maintenance program.
predictive
preventive
predetermine
premade
Prior to maintenance, a machine produced 50 parts per minute. The machine was designed to produce 100 parts per minute. The drive belt was replaced. The machine should now be monitored in order to verify that
it will produce 50 parts per minute
it will produce 50 parts per 2 minutes
it will produce 100 parts per minute
it will produce 100 parts per 30 seconds
The _______ test will show cracks in the surface of ferrous metal.
magnaflux
level
Breaker
pressure
Documentation that should be kept regarding a specific piece of equipment includes
Instruction manual
equipment repairment
bill of materials
Trouble that keeps recurring at regular intervals on the same detail should result in
call maintenance
a slight check for similar problems
a thorough check for a history of similar problems
What should be done when an employee witnesses a pool of oil under a machine?
Put a wet floor sign on top of the oil spot
spread oil dry or sand on the oil spot
Use a mop to wipe it off
Ask someone to clean it up
Oxygen cylinders must be kept ____ away from combustion points
20 feet
10 feet
15 feet
25 feet
When finished with an oil rag, it should be disposed of in
an rag container
an bag
an trash bin
an appropriate fireproof container
Gas cylinder need to be chained securely to keep them from
Hitting someone
Exploding
falling or tipping over
Leaking out
An employee comes to work on a rainy day and finds water dripping on the repair bench. What should the employee do first?
Don't tell anyone
Clean up the mess
Put a bucket under the leak
Contact a supervisor
The flexible or rigid protection for electrical wiring to motors is provided mainly for
the prevention of damage
the prevention of injury
A paint can that is partially full should be
stored sealed and inside a cabinet
places where you can see it
places where you can't see it
stored loose and outside a cabinet
A well-designed workstation places tools and equipment where they
are on the ground everywhere
can be available with minimum stress
are tucked away with tool on top of each other
are in a neat row
Which of the following circumstances is most likely to result in a shock from electrical devices?
wearing proper equipment
improper grounding of the circuit
touching the electrical device
using the phone for too long
Proper storage of tools helps keep them
in good working order
stable
safe
free for use
Seizing, in reference to bearings and shafts, is a condition resulting from
lack of lubrication
lack of friction
lack of happiness
lack of strength
Housekeeping inspections and audits should include
unbiased supervisor
biased supervisor
biased auditors or inspectors
unbiased auditors or inspectors
A power tool has the ground prong broken off of the plug of the power cord. What should be done?
continue using the power tool
remove the plug
remove the power tool from service
Use a different tool in the meantime
Anyone in a plant should be able to find the right tool for the right job in
10 seconds
20 seconds
30 seconds
40 seconds
The most common maintenance problem with vibration on air fans is caused by
Bug infestation
sediment/product buildup
Broken wired
Wind disturbed
How many extension cords are permitted to run across the floor of a workstation?
as many as you like
only the small thin ones
at least 1
0
A workstation should be designed to minimize motions that can
cause repetitive /stress injuries
affect the machine
be hard to work with
Because dial indicators are fairly delicate, they should ________ during adjustment of the motor position.
be reinstalled
be removed
be replaced
be realigned
Which of the following would indicate water contamination of oil?
milky color
Black color
muddy color
If a technician has unwired a motor from a disconnect and the circuit breaker still trips, the next logical step is to _______ and see if the breaker trips again.
Check the wiring to connect
Check the wiring to the disconnect
A chain drive system has a driver sprocket with 24 teeth and a driven sprocket with 72 teeth. If the driver shaft has 633 ft lbs per torque, the torque on the driven shaft will be
633 ft
899 ft
2,899 ft
1,899 ft
When time delay relays are used for sequencing, they basically take the place of which type of device
Lockout/Tagout
Limit switches
Interlock switches
light switches
When increasing temperature, the viscosity of a liquid
increases significantly
decreases significantly
increases slightly
decreases slightly
The worst enemy of a hydraulic system is
pressure
contamination
sediment/product buildup
Power outage
The meter shown is connected in the circuit so that it measures
resistance
current
voltage
Which of the following is the primary cause of pump cavitation?
suction line pressure is too low
suction line pressure is too high
suction line pressure is too loose
suction line pressure is too tight
How is a cam likely to be mounted on a shaft?
nut and bolt
welded
magnaflux
rope
Which of the following is true regarding bearing maintenance?
Over lubrication of bearings can damage the seal
Under lubrication of bearings can damage the seal
Devices called _______ often serve as the brains of an automated machine.
AI
Master Control
relays
refrain
A power diagram is used in addition to a ladder diagram to determine _____
how the input functions on the machine
how the output functions on the machine
To convert gauge pressure to absolute pressure
add atmospheric pressure to the gauge pressure
remove atmospheric pressure to the gauge pressure
replace atmospheric pressure to the gauge pressure
combine atmospheric pressure to the gauge pressure
Smaller dirt particles are removed from the air by the filter's
automatic cleaning system
element
line's
wind
The primary purpose of a switch is to
Open and Closes
energize and de-energize circuits
Lockout and Tagout
Go up and down
The following diagram is an example of controlled logic.
(OR,DND,NOR,DAND)
(OR,AND,NR, NAND)
(OR,AD,NOR,NAD)
(OR,AND,NOR,NAND)
The multimeter is a multipurpose device that can measure
Kelvin, Celsius and Fahrenheit
Metric and Imperial
voltage, current and resistance
voltage and current
Both analog and digital voltmeters measure
electromagnetic
potential difference
voltage
voltage, current and resistance
A burned or pungent odor of oil indicates
low temperature
excessive temperature
excessive amount of oil
low amount of oil
When checking alignment the technician finds that the straight edge lines up properly on both sides of the sheaves and touches at all four points. After rotating one of the sheaves a partial turn, the technician now finds that the straight edge only contacts two of the four points. The most likely reason is that
a shaft is disconnected
a shaft is broken
a shaft is bent
a shaft is missing
The part of the electrical circuit that gives the operator control is the
input device
output device
Which of the following is a common material for tubing in high pressure hydraulic service?
Metallic steel
Iron bar
Copper
Stainless steel
A viscometer is a device used for measuring the viscosity of an oil and is generally ____________
99% to 100% accurate
95% to 99% accurate
80% to 90% accurate
85% to 90% accurate
Machine closures usually have _______ to prevent entry during machine operation.
safety zones and railings
Guardrail and warning signs
signs and people
If suspended metal products were found in an oil analysis, it would indicate
steady cooling
overcooling
steady heating
overheating
Which of the following is an indication that a filter needs to be replaced?
Making weird noises
Excessive back pressure
Sediments build up
When it's dirty
The drive motor and equipment are protected by overload clutches when
a person is where they're not supposed to be
something jams or binds in the machinery
something is leaking out of the machinery
the wiring is disconnected
What is the maximum pressure that the gauge shown can measure?
kPa
km
PSI
VCR
To check sheave wear
look at the repaired date
measure each groove angle
Check for rust
ask co-worker for assistance
When performing preventative maintenance you must follow the recommendations and procedures given by:
the operator
the supervisor
the maintenance crew
the manufacturer
To which standard must preventive maintenance be performed?
Only fix what look broken
Make new change as you see fit
Equal to the original or properly altered condition
Only fix when something happens
Shaft couplings are critical parts of any transmission system. What can cause a coupling to fail?
Lack of proper lubricant, improper selection of application, excessive misalignment, harsh environmental/operation conditions, excessive speeds/loads
Over use of lubricant, proper selection of application, little misalignment, calm environmental/operation conditions, little speeds/loads
Heavy axial loads are better handled by ________ ?
angular contact bearings
self-Aligning bearings
thrust bearings
deep-groove bearings
A shaft coupling may be out of round if a dial indicator shows ______ ?
to be out of round
any movement
misalignment
improper binding
The three types of shaft to adjacent shaft power transmission are ___.
belt drive, clunk, & gear drive
belt drive, chain drive, & gear drive
belt, chain, & gear
belt drive, chain, & gear drive
A sot welding system consists of an electrical supply, moveable arm and a(n) ______
Laptop
Operator
Stationary arm
The employee verifies that preventive maintenance is complete when ___
Closing out a PM work order
Beginning a PM work order
Making random equipment inspections
Completing a corrective action report
