MECHANICAL REVIEW QUESTIONS AND
ANSWERS UPDATED 2026
# Term Definition
1 Thermal
Three methods of mechanical power
are electrical, ____________, and fluid
2 Couplings
Two methods of axial power
transmission commonly used are
__________ and clutches
3 Gear
Three methods of
shaft-to-adjacent-shaft power
transmission are belt drives, chain
drives, and ________ drives
4 Should
Safety glasses ______________ be
worn at all times
5 Do Not Operate
A tagout tag should clearly read
___________
6 Absorb Vibrations
A foundation has three functions:
support the load of the machine
without settling, maintain alignment
between coupled components, and
___________
7 Structural Steel
A foundation for heavy equipment can
be made from solid concrete,
reinforced concrete, or ____________
8 Bedplate
A ___________ placed on a foundation
provides a rigid, level surface for
mounting compoenents
, 9 Perpendicularity
A spirit level is used to measure
____________ and parallelism of a
surface with the ground
10 Bubble
A spirit level has liquid filled tubes
containing a __________ and two
alignment marks
# Term Definition
11 Foot Mount
Gearbox and Electric Motor would use
what kind of mount
12 C-Face Mount
Centrifugal Pump, Gearbox, and Electric
Motor would use what kind of mount
13 Adjustable Mount
Belt Drive and Chain Drive would use
what kind of mount?
14 True
True or false: Gearbox and
Electric Motor can use either Foot
Mount or C-Face Mount
15 Hex Head Bolt with two flat washers
Mounting a motor to the bedplate,
What kind of bolt should you use?
16 Two Flat washers, One Lock Washers, and One Nut
When using a Hex Head Bolt -what are
the two types of washers used and
how many nuts?
17 Loctite 242
As an alternative to the Lock
Washer, you can use ____________
18 True
True or False: A 7/16 inch bolt can be
used for a 1/2 inch hole
,19 Markings
The __________ on the bolt head
identify the grade of the bolt
20 2
The grade of the bolt is the number of
raised lines on the head plus
_____________
21
3 lines on top of bolt head means the 5 Note: 3 + 2 = 5 The 3 comes from the 3 markings on
bolt is a grade ________ the bolt and you always just add 2
22 False
True or False: the nut doesn't have to
be the same grade as the bolt
# Term Definition
23 Motor Mounting
UNC is commonly used for ________
applications
24 Fine Thread Type (UNF)
Assembly and disassembly of the
UNC thread is quicker than the
___________ because it has fewer
threads per inch
25 1/4 inch increments
Common sized bolt lengths are
typically available in
________________
26 Root
The thickness of the nut should equal
the _________ diameter of the bolt's
threads
27 Raised Dots or Slashes
The grade markings on nuts are
typically __________ or _________
arranged in a pattern determined by
engineering standards
, 28 Inside
The thickness of the nut should
equal the ___________ thread
dimension
29 Soft Foot
___________ is a condition where
one or more of the mounting feet are
not level with the others or where the
base plate is not level in all places
30 foot mounts are made of thin metal and warp easily
Some of the causes of soft foot are:
uneven mounting surface, uneven
motor mount, or __________
31 Rough/Dirty Surface
Some types and causes of a soft foot
condition: Short Leg, Tilted Leg, Angled
Pad, Sim Problems, and ___________
32 .002 inch or .05mm
In general, machines should not have a
soft foot greater than _________
# Term Definition
33 Shim
To fix a soft foot, simply
___________ the one short leg
34 Total Indicator Reading (TIR)
The Total Variation in a rotating a shaft
is called _______________
35 TIR
The Run-Out is one half of the
_________
36 .002 inch or .05mm
Do not use motors with a
Run-Out that exceeds ________
ANSWERS UPDATED 2026
# Term Definition
1 Thermal
Three methods of mechanical power
are electrical, ____________, and fluid
2 Couplings
Two methods of axial power
transmission commonly used are
__________ and clutches
3 Gear
Three methods of
shaft-to-adjacent-shaft power
transmission are belt drives, chain
drives, and ________ drives
4 Should
Safety glasses ______________ be
worn at all times
5 Do Not Operate
A tagout tag should clearly read
___________
6 Absorb Vibrations
A foundation has three functions:
support the load of the machine
without settling, maintain alignment
between coupled components, and
___________
7 Structural Steel
A foundation for heavy equipment can
be made from solid concrete,
reinforced concrete, or ____________
8 Bedplate
A ___________ placed on a foundation
provides a rigid, level surface for
mounting compoenents
, 9 Perpendicularity
A spirit level is used to measure
____________ and parallelism of a
surface with the ground
10 Bubble
A spirit level has liquid filled tubes
containing a __________ and two
alignment marks
# Term Definition
11 Foot Mount
Gearbox and Electric Motor would use
what kind of mount
12 C-Face Mount
Centrifugal Pump, Gearbox, and Electric
Motor would use what kind of mount
13 Adjustable Mount
Belt Drive and Chain Drive would use
what kind of mount?
14 True
True or false: Gearbox and
Electric Motor can use either Foot
Mount or C-Face Mount
15 Hex Head Bolt with two flat washers
Mounting a motor to the bedplate,
What kind of bolt should you use?
16 Two Flat washers, One Lock Washers, and One Nut
When using a Hex Head Bolt -what are
the two types of washers used and
how many nuts?
17 Loctite 242
As an alternative to the Lock
Washer, you can use ____________
18 True
True or False: A 7/16 inch bolt can be
used for a 1/2 inch hole
,19 Markings
The __________ on the bolt head
identify the grade of the bolt
20 2
The grade of the bolt is the number of
raised lines on the head plus
_____________
21
3 lines on top of bolt head means the 5 Note: 3 + 2 = 5 The 3 comes from the 3 markings on
bolt is a grade ________ the bolt and you always just add 2
22 False
True or False: the nut doesn't have to
be the same grade as the bolt
# Term Definition
23 Motor Mounting
UNC is commonly used for ________
applications
24 Fine Thread Type (UNF)
Assembly and disassembly of the
UNC thread is quicker than the
___________ because it has fewer
threads per inch
25 1/4 inch increments
Common sized bolt lengths are
typically available in
________________
26 Root
The thickness of the nut should equal
the _________ diameter of the bolt's
threads
27 Raised Dots or Slashes
The grade markings on nuts are
typically __________ or _________
arranged in a pattern determined by
engineering standards
, 28 Inside
The thickness of the nut should
equal the ___________ thread
dimension
29 Soft Foot
___________ is a condition where
one or more of the mounting feet are
not level with the others or where the
base plate is not level in all places
30 foot mounts are made of thin metal and warp easily
Some of the causes of soft foot are:
uneven mounting surface, uneven
motor mount, or __________
31 Rough/Dirty Surface
Some types and causes of a soft foot
condition: Short Leg, Tilted Leg, Angled
Pad, Sim Problems, and ___________
32 .002 inch or .05mm
In general, machines should not have a
soft foot greater than _________
# Term Definition
33 Shim
To fix a soft foot, simply
___________ the one short leg
34 Total Indicator Reading (TIR)
The Total Variation in a rotating a shaft
is called _______________
35 TIR
The Run-Out is one half of the
_________
36 .002 inch or .05mm
Do not use motors with a
Run-Out that exceeds ________
