Final Exam Answer Key for
Introduction to Industrial Maintenance
IMA 100
1.
Machine reliability can always be improved with additional resources.
True
False
Match the following terms to their definitions.
2.
__D__ Predictive
A. Maintenance activity to correct inoperable
equipment.
3.
__F__ Overhaul
B. Maintenance activity to address machine
deficiencies.
4.
__A__ Breakdown
C. Maintenance activities that typically
replace parts designed to wear prior to
affecting machine performance.
5.
__B__ Corrective
D. Maintenance activities that involve the use
of advanced detection technologies.
6.
__E__ Compliance
E. Examples would include maintenance
activities centered around federally
regulated processes.
7.
__C__ Preventative
F. Complete machine rebuild.
8.
What are the typical roles of an organization’s CMMS?
A.
Spare parts inventory, management guidelines, work request
generation, and material safety.
B.
Spare parts inventory, maintenance history, resource leveling, and
work request generation.
C.
Management guidelines, material safety, time cards, and company
operating procedures.
D.
All of the above.
E.
None of the above.
9.
The metric system is based on multiples of 10.
10.
Centrifugal pumps are better suited than other pumps for high viscosity
type materials.
True
False
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
True
False
1
11.
One inch is equal to:
A.
2.54 mm.
B.
25.4 cm.
C.
25.4 mm.
D.
.254 cm.
12.
One thousands of an inch = 0.001___ (numerically).
13.
At sea level, 40 PSIG is equal to __54.7__ PSIA.
14.
OSHA stands for ____________ ___________ ______________
_____________. (Occupational Safety and Health Administration)
15.
PPE stands for ____________ _____________ _____________.
(Personal Protective Equipment)
16.
MSDS stands for __________ _____________ ____________
__________ (Material Safety Data Sheet)
Three energy sources LOTOTO is meant to isolate.
17.
______________________ (Electrical)
18.
______________________ (Pneumatic)
19.
______________________ (Mechanical)
20.
How much current is considered a lethal amount?
A.
.015 amps.
B.
.001 amps.
C.
.10 amps.
D.
0.15 amps.
21.
The section of a typical MSDS that would contain PPE recommendations
is ________________ _____________ _____________ ___________
(Section 6, Health Hazard Data)
Match each type of tool with an example.
22.
Precision measurement tool __B__
A. Inches, centimeters,
millimeters
23.
Gauges __D__
B. Thousandths, mils, microns
24.
Standard measurement tool __A__
C. True, false, on, off,1,0
25.
Digital measurement tool __C__
D. Inches of water, inches of
mercury, bars
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
2
26.
“Cheater” bars are acceptable additions when using a torque wrench.
True
False
27.
How many flats or points does a standard impact socket have?
A.
Four.
B.
Six.
C.
Eight.
D.
Five.
28.
In a confined space, what is the acceptable level of oxygen that must be
present to sustain human life?
A.
20.5%.
B.
25%.
C.
19.5%.
D.
80%.
29.
A substance with a PH of 3 is a stronger acid that that with a PH of 7.
True
False
30.
What does the “20” mean in a ¼”20 bolt?
A.
The material used.
B.
The amount of torque the bolt can withstand.
C.
The bolt’s diameter.
D.
The pitch of inch.
31.
Fine thread bolts have a lower pitch that course thread bolts.
True
False
32.
To determine the grade of a bolt with the dash system, you must add ____
to the number of dashes.
A.
8.
B.
5.
C.
3.
D.
2.
E.
1.
33.
This type of nut typically has a smaller depth than a standard nut and is
used to lock another nut in place.
A.
Jam nut.
B.
Nylock nut.
C.
Button nut.
D.
Cap nut.
34.
“Helicoil” kits are designed to repair threads in nuts.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
True
False
3
35.
UV rays typically will deteriorate white cable ties more than black ones.
True
False
36.
What are some advantages of six point sockets opposed to twelve point
sockets?
A.
Thicker wall, more flats.
B.
Thicker wall, tighter grip on the head.
C.
Thinner wall, fits into hard to reach areas.
D.
Thicker wall, shorter throw with ratchet head.
E.
None of the above.
Match each tool to its description.
37.
__G__ Clevis
A. Can include Phillips and Standard.
38.
__C__ Angle grinder
B. Used to apply a measured amount of force.
39.
__K__ Milling machine
C. Ring test is recommended for replacement
wheels.
40.
__I__ Impact wrench
D. Advantages include speed and versatility
opposed to combination wrenches.
41.
__B__ Torque wrench
E. Sometimes used for bearing installation.
42.
__L__ Lathe
F. Used for creating holes in harder material.
43.
__H__ Strap wrench
G. Item used in rigging operations.
44.
__J__ DMM
H. Used to tighten large or non-standard
items.
45.
__F__ Hammer Drill
I. Hammering action used to increase applied
torque to fastener.
46.
__E__ Arbor Press
J. Electrical tester.
47.
__D__ Ratchet
K. Used to machine flat material.
48.
__A__ Screwdriver
L. Used to machine round material.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
4
49.
Name the item that should be inspected on a power tool before use?
A.
Electrical cord.
B.
Nameplate identification.
C.
Electrical plug.
D.
Lock nut.
E.
All of the above.
F.
A & C.
G.
A & B.
50.
A double insulated power tool does not require a three-prong grounded
plug.
True
False
51.
“UL” is a common marking on electrical items. What does it stand for?
A.
Underwater liability.
B.
Universal listing.
C.
Underwriters laboratories.
D.
Universal laboratories.
52.
In the event of a ground fault on a non-double insulated power tool, the
path the current will travel is through the neutral conductor.
True
False
53.
Do not use _____ on nuts and bolts unless the fastener is already
damaged or rounded.
A.
Screwdriver.
B.
Flashlight.
C.
Vise grips
D.
Hacksaw.
E.
Combination wrench.
54.
Removing the guard that is on a right angle grinder increases the risk of
injury?
True
False
55.
On a grinding wheel, a ring test is designed to verify that the wheel is out
of round.
True
False
56.
Safety glasses do not need to be worn when operating a hand drill?
True
False
57.
When operating a drill press, you should not wear ___________. (gloves)
58.
Compressed air is a common medium for valve control.
True
False
59.
Solenoids are used to convert __electrical____ energy to
____mechanical___ motion.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
5
60.
A pressure vessel nameplate will contain the following:
A.
Color of vessel.
B.
Year of Manufacture.
C.
Maximum working pressure.
D.
Three ways.
E.
A & C.
F.
All of the above.
61.
A gear pump is considered a centrifugal type pump.
True
False
62.
Cavitation in a centrifugal pump can be caused by:
A.
Low speed.
B.
Air in the discharge.
C.
Bearing defects.
D.
Air in the suction.
E.
All of the above.
63.
A positive displacement pump is used to compress liquids.
True
False
64.
Select the pump that is commonly used in industrial applications.
A.
Acceleration.
B.
Centrifugal.
C.
Vertical.
D.
Gear.
E.
Velocity.
F.
Reciprocal.
G.
Constant motion.
H.
A, C & F.
I.
B, D, & F.
J.
E, F, & G
65.
Positive displacement pumps are better suited than other pump for high
viscosity type materials.
True
False
66.
Schedule 80 pipe has a thicker wall than the schedule 40 pipe.
True
False
67.
Pipe size is determined by the inner diameter of the pipe.
True
False
68.
Pascal’s Law states that at constant temperature, the absolute pressure of
a gas is inversely proportionate to its volume.
True
False
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
6
69.
Tubing size is determined by the inner diameter of the tubing.
True
False
70.
Pipe and tubing sizes are found on a schematic diagram.
True
False
71.
PVC pipe maximum working pressure is commonly printed on the pipe.
True
False
72.
Typical Methods of power transmission are:
A.
Chain, band, belt.
B.
Gear, lobe, electrical.
C.
Belt, gear, liquid.
D.
Chain, gear, belt.
73.
Proper tension of an installed belt can be indicated by the amount of
__deflection______ force and distance.
74.
An over-tensioned belt can contribute to increased bearing failures.
True
False
75.
A __gear___ is a toothed wheel or disk used to transmit mechanical
power from one shaft to another through the meshing action of teeth.
76.
___Pitch___ diameter is the point at which gears transfer power.
77.
In a system with a driver gear diameter of 2 inches and a driven gear
diameter of 4 inches, and a given input speed of 10RPM, what is the
output shaft speed?
A.
10 RPM.
B.
20 RPM
C.
5 RPM.
D.
30 RPM.
78.
There are ten intermeshing gears. If the first gear in the system is turning
counter clockwise, the tenth gear turns __clockwise____.
79.
A seal ____________________.
A.
Reduces internal contamination.
B.
Prevents leakage of the system.
C.
Supports outer diameter of input shaft.
D.
Prevents buildup of static electricity.
80.
Two function of a seal are _____exclusion____ and ___retention____.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
7
81.
__Lapping___ is the process in which a mechanical seal face can be
resurfaced.
82.
Journal bearings typically contain needles or rolling elements.
True
False
83.
The two primary loads that a bearing will experience are _____radial___
and ____axial___.
List three reasons why a bearing might fail.
84.
_______________________
85.
_______________________
86.
_______________________
High Temperature, Moisture, Improper lubrication, Contamination, Misalignment,
Electrical Current Flow through Bearing, Overloading, and Excessive Thrust.
87.
Bearing that have shields cannot be converted for use as a greased
bearing.
True
False
88.
How would you expand the bearing to prepare for installation?
A.
Inductive heater.
B.
Cutting torch.
C.
Hair dryer.
D.
Oil bath.
E.
Both A & D.
F.
All of the above.
89.
____Couplings_____ are designed to connect two linear shafts together
for power transmission.
90.
In a thrust bearing, the cup is also known as the ____outer____ race.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
8
Match the terms with the appropriate definitions or applications.
91.
__D__ Semi-solid
A. A substance that reduces friction by
providing a smooth surface of film over
parts that move against each other.
92.
__F___ Lubricants made
from petroleum of synthetic
materials
B. The internal friction of a lubricant caused by
molecular attraction.
93.
__A__ Lubricant
C. Any compound containing mostly hydrogen
and carbon.
94.
__C__ Hydrocarbon
D. A gel like substance that has the
characteristics of both a solid and a liquid.
95.
__B___ Viscosity
E. Food grade lubricants.
96.
__E___ Lubricants made F. Most commonly used in industry.
from animal or vegetable
oils
97.
____Additives____ are designed to improve the properties of lubricants.
98.
Grease has a lower viscosity than oil.
99.
ISO stands for:
A.
International Suppliers Organization.
B.
Industrial Supplier Organization.
C.
Industrial Safety Organization.
D.
International Standards Organization.
True
False
Three forms that lubricants come in are:
100.
________________ (solid)
101.
________________ (semi-solid)
102.
________________ (liquid or gas)
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
9
103.
Unbalanced machines can contribute to which of the following:
A.
Bearing failure.
B.
Shorten Machine life.
C.
Increased efficiency.
D.
Lower cost
E.
A & B.
F.
All of the above.
104.
There is no need to balance an assembly if the pieces are balanced
separately.
True
False
105.
Material build-up on rotating parts can increase the unbalance of the part.
True
False
106.
An unbalanced machine part will be more evident at ___higher____ rpm.
Identify the causes of imbalance in a rotating machine part:
107.
_B__
A.
B.
C.
D.
E.
F.
G.
H.
Failing bearings.
Bent shaft.
Insufficient lubrication.
Contaminants build-up.
Manufacturing defects.
Excessive heat.
Looseness.
Missing fasteners
108.
_D__
109.
_E__
110.
___Static___ balancing is in a single plane, where as ____dynamic__
balancing deals with multiple planes.
111.
Select the types of misalignment.
A.
Offset
B.
Elliptical.
C.
Vector.
D.
Non-parallel.
E.
Soft foot.
F.
Angular.
G.
Perpendicular.
H.
All of the above.
I.
None of the above.
J.
D, E, & F.
K.
A, D, & F.
112.
___Shims____ are used to correct soft foot and adjust the height of a
machine.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
10
113.
A slightly misaligned V-belt will not affect sheave wear.
True
False
114.
When aligning a pump/motor system, the ___pump___ is usually
stationary, and the ___motor___ is movable.
Match the terms with the appropriate use.
115.
__B_ Lubrication Analysis
A. Heat detection.
116.
__C_ Ultrasound
B. Oil quality.
117.
__D_ Vibration
C. Useful for finding air leaks.
118.
__A_ Infrared
D. Waveform analysis.
119.
___Preventive___ maintenance is intended to reduce the occurrence of
failures, where ___predictive___ maintenance is for the early detection of
failures.
120.
The higher the viscosity, the thicker the lubricant.
True
False
121.
Because of the difference in specific gravity, oil will float on water.
True
False
122.
“Milky” looking oil is typically a sign of what kind of contamination?
A.
Grease.
B.
Oxidation.
C.
Water.
D.
Additive depletion.
E.
A & C.
F.
All of the above.
G.
None of the above.
123.
Synthetic lubricants are typically derived from petroleum?
True
False
124.
Select a defect that vibration analysis can find.
A.
Bearing defect.
B.
Balance defect.
C.
Alignment defect.
D.
All of the above.
E.
None of the above.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
11
125.
___Baseline__ readings are typically taken with new equipment to
establish a starting point for creating a vibration history for trending.
126.
MIG stands for __metal__ __Inert__ __Gas__.
127.
Ultrasound frequencies are below that of human hearing.
True
False
128.
Ultrasound technology can be used to find which of the following defects:
A.
Bearing defects.
B.
Stem trap defects.
C.
Pipeline leakage.
D.
Pipe wall thickness.
E.
Static head pressure.
F.
Hydraulic over-pressure.
G.
A, B, & C.
H.
C, D, & F.
I.
None of the above.
129.
GMP stands for:
A.
General Maintenance Policies.
B.
Government Mandated Procedures.
C.
Good Manufacturing Practices.
D.
Good Maintenance Practices.
130.
Gaskets and o-rings can be reused if not visibly damaged.
True
False
131.
Impact tools can be used for machine ___disassembly___, but not
____reassembly____.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
12
132.
What is the proper tightening sequence for the following?
1
5
2
4
A.
B.
C.
D.
3
1,2,3,4,5.
1,5,4,3,2.
1,3,5,2,4.
Does not matter.
133.
When disassembling a machine, parts and fasteners should be:
A.
Cleaned and labeled.
B.
Separated and painted.
C.
Always replaced.
D.
Inspected.
E.
A & D.
F.
All of the above.
134.
Anti-seize compound should be used on all fasteners during reassembly.
True
False
135.
Break-in periods are needed for new equipment.
True
False
136.
Compressed gas cylinders can be moved only short distances with the
protector cap off. True
False
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
13
137.
While welding, recommended PPE should include:
A.
Gloves.
B.
Safety glasses.
C.
Tinted shield.
D.
Long-sleeved fire retardant clothing.
E.
Steel-toed boots.
F.
All of the above.
138.
At what pressure does acetylene become unstable?
A.
5 psi.
B.
10 psi.
C.
5 bar.
D.
15 psi.
139.
What is the difference between Oxygen and Acetylene fittings?
____The acetylene fitting is left-hand threaded____.
140.
Acetylene bottles should be transported in a ___vertical or upright___
position.
141.
TIG stands for ____Tungsten_____ ___Inert____ ___Gas____.
142.
Welding curtains are designed to protect eyes.
True
False.
143.
Argon is used in welding operations for TIG and MIG welding.
True
False
144.
Of the three types of light produced by arc welding, __ultraviolet___ is the
most dangerous.
Match the following items to their definitions:
145.
_D_ MIG
A. Electric arc welding, using Tungsten as one
of the electrodes.
146.
_A_ TIG
B. Electric arc welding using a flux coated rod
as one of the electrodes.
147.
_B_ Stick
C. Welding using heat provided by gases.
148.
_C_ Oxy-acetylene
D. Electric arc welding using a continuous
coiled wire as one of the electrodes.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
14
149.
While conducting plasma or oxy-acetylene cutting operations, OSHA
requires:
A.
Water source.
B.
Fire extinguisher.
C.
GFCI protection.
D.
Hot work permit.
E.
Fire watch.
F.
A, B, & D.
G.
B, D, & E.
150.
Cleanliness of the joint is one of the most important issues when
“sweating” or soldering copper pipe.
True
False
Identify the following bearing components on the appropriate lines.
Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
15
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Final Exam Answer Key for
Introduction to Industrial Maintenance IMA 100
Prepared by Mesa Oak Consulting, Inc.
16