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MSSC 5 Part 1 Flashcards | StudBud
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MSSC 5 Part 1
MSSC 5 Part 1
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Answers
1
Sensor monitoring is the most useful aspect of what program?
Reactive maintenance
Corrrective maintenance
Preventive maintenance
Predictive maintenance
2
The employee verifies that preventive maintenance is complete when __________.
Completing a corrective action report
Closing out a PM work order
Making random equipment inspections
Beginning a PM work order
3
A shaft coupling may be out of round if a dial indicator shows what?
Damage
Any movement
Offset
Full Range motion
4
To make sure tools remain in good working order, __________.
Store them properly
Do not clean them off after use
Use oversized tools
Do not use them unless absolutely necessary
5
What is the gear ratio?
Driven gear teeth size drivided by driver gear teeth size
Driven gear diameter divided by driver gear diameter
Driven gear pitch diameter divided by driver gear pitch diameter
Driven gear thickness divided by driver gear thickness
6
Too little lubrication of what component can cause seizing in a machine?
Sheaves
Sprockets
Belts
Bearings
7
What is a master link?
Another name for an offset link
The preferred method of connecting a chain
The first indication of a stretched chain
All of the above
8
The belt drive ratio is also used to calculate the belt drive torque. The formula is ___ proportional to the drive ratio
Differentially
Inversely
Directly
Acutely
9
In contrast to other types of belts, which belt is determined to be properly adjusted when belt slap is eliminated?
Multi-V belts
Flat leather belts
V-belts
O-ring belts
10
In a well-organized plant, it should take a worker __________ to find the right tool.
10 minutes
1 minute
30 seconds
5 minutes
11
Design failure in a production line can be apparent by repeated maintenance failures and _______
The high output achieved
Employee turnover
The inability to meet performance demands
Supply material used
12
A common sign of a misaligned coupling is __________.
Machine won't start
Excessive oil temperature
Excessive Vibration
Excessive machine speed
13
A machine was producing 100 ppm. It was designed to produce 200 ppm. The drive belt was replaced. It should produce ___
200 parts per minute as designed
The belt drive has no impact on ppm
100 parts per minute as it was before
Not more than 80% of its original design due to normal wear and tear
14
A board with tool outlines for placement is called a __________ and is a good way to ensure tools are returned
Shadow Board
Board of tools
Storyboard
Storage bin
15
Zero defects and breakdowns is a goal of _______
UAW
WPA
FDA
TPM
16
The following condition is an indicator of improper v-belt alignment.
Less downtime
Excessive bearing and belt wear
Extended belt wear
Increased productivity
17
what causes soft foot?
Too much lubrication
Out-of-round shafts
Not enough lubrication
Uneven mounting surfaces
18
Supply errors can be caused by relying on __________ without monitoring their performance.
Inspectors
Employees
Customers
Suppliers
19
What is most closely associated with repair of broken parts?
Predictive maintenance
PDCA cycles
Breakdown maintenance
Preventive maintenance
20
Results of tests, inspections, and a schedule for future maintenance can be found where?
The employee break area
Preventive Maintenance Log
Statement of work (SOW)
User manual
21
__________ are not permitted on the floor of a workstation.
Painted lines
Non-slip mats
Extension cords
Trash cans
22
How often the maintenance will occur is the primary consideration of what type of maintenance?
Responsive
Reactive
Preventive
Predictive
23
Product buildup is the most common vibration problem on __________.
Pneumatic valves
Hydraulic pump vanes
Air fans
Cylinder pistons
24
True or false: A pillow block can only be designed as a one-piece assembly.
False
True
25
The first thing you should do when discovering a building maintenance issue that negatively impacts your work area is?
Go home until the problem is fixed
Report the situation to your supervisor
Try to fix the problem
Ignore the problem
26
Which drive alignment method is faster and more accurate than the straight edge method?
Straight edge method
String method
Laser Alignment
Dial indicator method
27
A thorough check for a history of similar problems should occur ______
On problems that warrant a repair
On problems that have not occured in the past
For new problems
On problems that keep recurring at regular intervals
28
The ratio of the speeds of the sprockets is the _____ of the sprocket ratio
Reverse
Inverse
Proportional
Counter
29
Bearing seals can be damaged by what?
Routine lubrication processes
Excessive lubrication
Proper burn-in
Shortening the run time
30
What should a technician do before performing preventive maintenance?
Interview the oeprator
Acquire tools and supplies, then shut down the machine
Make sure that the machine parts are still available
Review the user manual
31
In a spur gearing system, the small gear is called the __________.
Spline
Worm
Pinion
Driven
32
The shaft of a belt drive may be bent if an alignment check with a straight edge finds what condition?
The straight edge scrapes the sheave
4 points of contact becomes 2 points of contact after rotating the shaft
the straight edge contacts only 3 of the four points of the 2 sheaves
The straight edge cannot touch both of the sheaves at the same time
33
Timing belts are used in which of these drive belt drive applications:
Fans, heavy industries, and pumps
Conveyor systems and machine tools like lathes and band saws
Farm equipment like conveyors and balers
Stepper motor applications and automobile engines
34
To reduce the time needed to clean inaccessible areas, what should operators do?
Skip routine cleanings as needed
Only A and B
Make areas more accessible
Prevent contamination from occuring
35
A __________ is important for a timely closure of PM work orders.
Incentive award
Completion date
Well-maintained machine
Computerized system
36
________ should be disposed of in an OSHA-approved fireproof container.
Oily rags
Metal scrap
Wood
Paper
37
The gear drive torque is __________ the gear ratio.
Inverse of
Indirectly proportional to
Directly proportional to
Reverse of
38
What is preventive maintenance defined as?
Routine servicing at predetermined intervals
Plan-Do-Check-Act (PDCA) cycles
Run-to-breakdown production
Condition-based servicing
39
A borescope or fiberscope can be used to __________ internal components.
Graph vibrations of
Monitor sounds of
Clean and sanitize
Visually inspect
40
The frequency of maintenance is usually an item found on the __________.
Warranty card
Preventive maintenance schedule
Work order
Hold card
41
What is an example of failure to follow preventive maintenance?
Filter replacement
Skipping a scheduled cleaning
Replacing V-belts in sets
Lubricating bearings as described
42
The gear system shown is added to a motor rotating at 200 rpm. What is the speed of the driven gear?
200 rpm
50 rpm
50 fps
800 rpm
43
Slips and falls are the worst safety hazards when __________.
Lifting heavy objects
Cleaning floors
Mopping floors
Driving a tug
44
Workers should perform an emergency shutdown of their equipment and notify their supervisor in which circumstance?
They are notified of a family emergency and need to go home
They notice that the equipment temperature is rising but still in limits
They detect vibration levels that are within the allowable range
They hear a loud banging noise coming from the equipment
45
When a cutting tool provides unacceptable product quality results, it should be replaced and __________.
Reused later
Scrapped
Resharpened
Repurposed
46
What is the name of the clearance that allows lubricant to reach the gear teeth?
Backlash
Offset alignment
Gap
Improper alignment
47
_________ should preside over housekeeping inspections or audits.
Unbiased auditors or inspectors
The company president
The immediate supervisor
The safety team
48
Which of the following gear types is used in machine tools like lathes, drills, and planer machines?
Rack and Pinion
Bevel
Double Helical
Spur
49
W. Edwards Deming's plan for continuous improvement is _____
Plan-Do-Check-Act (PDCA)
Design-Create-Implement-Review (DCIR)
Plan-Perform-Review-Document (PPRD)
Ask-Verify-Plan-Enact (AVPE)
50
Chain drives deliver _____ mechanical power than belt drives
More
The Same
Similar
Less
51
Brooms and mops should be stored __________
Next to the machine
In chemical cabinets
In a designated area or cleaning closet
In pairs
52
What contains equipment histories as well as maintenance, service, and preventive maintenance records?
Computerized maintenance management information systems (CMMIS)
Equipment maintenance management software (EMMS)
All of the above
Computerized Maintenance Management Systems (CMMS)
53
Which of the following is NOT a type of shaft-to-adjacent shaft power transmission?
Clutch Drive
Chain Drive
Belt Drive
Gear Drive
54
Which flange is shown with the correct tightening sequence?
A
D
B
C
55
Motor shaft runout is checked to make sure of proper __________.
Coupling size
Motor end float
Shaft size
Alignment of mating parts
56
A maintenance technician should have tools and supplies ready to perform preventive maintenance on a machine in order?
To make sure that the machine parts are still available
To minimize equipment downtime
To increase equipment downtime
To make sure that the job is done correctly
57
Daily preventive maintenance procedures, such as machine lubrication, are ________
Require a maintenance team to perform
Not really necessary and can be skipped several days in a row
Unscheduled events where workers put in OT to ensure production rates
Planned maintenance activities
58
Chain drive torque is the same as the gear ratio, meaning that when torque increases the sprocket ratio _____
Reverses
Increases
Decreases
Inverts
59
Placing tools and equipment where they can be reached with minimal strain is a characteristic of a __________.
Well-designed work station
Old style workstation
Poorly designed work station
Pull system
60
Perhaps the best place to store preventive maintenance records is __________.
In the supervisor's office
In a safe and secure location
A plastic folder attached to the equipment
In the maintenance office
61
Corrective work is performed following preventive maintenance when ________
The PM work was performed incorrectly
The schedule calls for it
Problems are discovered
The supervisor requests it
62
A maintenance log records work performed on a piece of equipment. A maintenance log should be kept for _________
Two weeks following a machine failure
Every machine
Machines without safety guards
Machines that show signs of wear
63
_________ normally include verification that the floor is clean.
Corrective action reports
Work orders
Routine housekeeping inspections
Maintenance logs
64
A workstation designed to __________ can reduce repetitive/stress injuries.
Minimize motions
Maximize a range of motions
Increase unnecessary motions
Increase product output
65
The best way to store liquids such as paint or cleaning fluids is __________.
Under the workbench for easy access
Sealed and in a cabinet
Near a window for ventilation
On the workbench
66
What type of bearing should be used for axial motion?
Radial bearing
Thrust bearing
Ball bearing
Solid bearing
67
Proper guarding, lockout/tagouts, and electrical box covers are all verified during what?
Visual inspections of machines
New operator training
Shift changes
Machine shutdown procedures
68
Chain driver sprocket has 72 teeth and the driven has 24. If the driver has 1899 ft-lbs of torque? Driven torque is ____
211 ft lbs
133 ft lbs
3165 ft lbs
633 ft lbs
69
Gears are pre-aligned at the factory; Shafts of the gear box must be attached using a _______ device to other shafts.
Strapping
Pairing
Welding
Coupling
70
What is the diameter of the driven pulley that is turning 700 rpm, when the 6-inch driver is rotating 2,100 rpm?
12 inches
30 inches
24 inches
18 inches
71
The chain climbing the sprocket is a symptom of which condition?
Excessive lubrication
Excessive chain tension
Excessive chain wear or sprocket wear
Temperature of chain
72
Preventive maintenance is best described as what?
Breakdown repair
Periodic in nature
Exhausting
Flexible
73
Recurring events can be analyzed to troubleshoot problems because what is recorded in daily records?
Employee concerns
Completed work orders
Daily maintenance
Lubrication schedules
74
To calculate the speed of a gear, the speed ratio and the __________ will be needed.
Number of gear teeth
Gear ratio
Gear sizes
Gear teeth ratio
75
Predictive maintenance is a type of maintenance program that does what function?
Provides startup and shutdown guidelines
Determines regular maintenance intervals when maintenance must be performed
Predicts the specific date when maintenance should be performed
Identifies machine part or component failures before a major breakdown
76
Sprocket sizes are determined by the _____ instead of the diamter of the sprocket
Radius
Number of teeth
Circumference
Pitch Diameter
77
Reactive Maintenance is considered a(n) __________ activity.
Unplanned maintenance
Chemical-related maintenance
Planned maintenance
Highly responsive maintenance
78
A gear drive has a minimum of two gears called _______
Drive and Idler
Driver and driven
Idler and Driver
Driven and Idler
79
__________ should be replaced immediately if found to be missing during an equipment inspection.
A borescope
Foot rests
A maintenance report
Safety guarding
80
_________ all machine components before coupling them together will reduce the number of shims required for alignment
Bolting down
Lubricating
Leveling
Polishing the shafts of
81
Chain sag can be changed by __________ the sprockets.
Moving
Removing the chain link of
Replacing the chain of
Strengthening
82
When opening supplies at a workstation, place excess packaging materials where?
In the machine
In the aisle
In appropriate trash/recycle bin
On the floor
83
Mechanical power transmission systems convert what type of power received from other sources into mechanical power?
Electrical
Fluid
Thermal
All of the above
84
Misaligned chain drives have vertical angular, horizontal angular, and __________ parallel misalignments.
Crossed
Horizontal
Perpendicular
Standard
85
Measuring a groove angle for wear is a maintenance check performed on what machine component?
Belt Drive sheave
Bearing race
End shaft chamfer
Chain sprocket
86
If a machine is obviously leaking, __________.
The employee should shut down the machine immediately and evacuate
The employee should throw some rags on the floor to soak up the leak
The employee should notify a supervisor
The employee should attempt to fix the machine
87
If gear X turns clockwise at a constant speed of 10 rpm, how does gear Y turn?
Clockwise at 10 rpm
Clockwise at 5 rpm
Counterclockwise at 5 rpm
Counterclockwise at 10 rpm
88
What is more efficient than a v-belt drive?
Machine tool drive
Compressor
Gear drive
Chain drive
89
What can be done after a corrective action form is completed?
The supervisor is summoned to determine whether the job is complete
The maintenance technician reviews the work order
Preventive maintenance should be documented as completed
The form is saved in a safe and secure place
90
What is often outlined and detailed in a maintenance log?
Maintenance scheduling
Shift leader contact information
A list of qualified operators
Date of equipment purchase
91
What is everyone responsible for?
Completing work orders on time
Scheduling maintenance after equipment breakdown
Filing out corrective action reports
Keeping the work area clean of dirt, dust and debris
92
What is an accelerometer used for?
Acoustic monitoring
Temperature measurement
Oil analysis
Vibration measurement
93
An example of preventive maintenance is ________
Arranging for an OSHA inspection of equipment
Replacing an item that has damaged
Replacing components after they have failed
Scheduled replacement of minor parts that wear out quickly
94
What is established when operating equipment is in good condition?
The best operator for the job
Normal running levels for physcial characteristics
Optimal order schedules for part inventory
The storage of maintenance logs
95
When a chain's length becomes 3% longer than its original length _____
It's time to replace it
It has compeleted it's "wear in" period
It will run at optimal speed
The load should be reduced
96
What introduces energy to a mechanical system?
Driven device
Prime mover
Solid bearing
Ball bearing
97
What is the belt drive ratio?
Driven sheave pitch diameter divided by the driver sheave pitch diameter
Belt circumference divided by the belt diameter
Belt length divided by belt thickness
Driven sheave diameter divided by driver sheave diameter
98
Noise, temperature, and vibration should be monitored when?
Only after a work order is submitted
During machinery operations
After an audit
Before an audit
99
Equipment should be inspected and reported to whom at the start of the production day?
The incoming shift
Appropriate parties
All personnel
The auditor
