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MSSC 2
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1
How is force measured when tightening bolts using a torque wrench?
Kilowatts
Ohms
Inch feet
Newton-meter
2
The proper tool to remove a stripped fastener is _____
Chisel
Rasp
Heli-coil
Extractor kit
3
Which problem with fasteners is most likely to cause joint failure?
Use of thread locking material
Incorrect torque
Incorrect material
over-lubrication
4
If a blade breaks or comes off the idler wheels, you should __________
Run to tell the instructor
Catch the broken end to prevent it from whipping around
Wait until the broken blade is out before notifying the instructor
Immediately turn off the power switch
5
What is the best wrench to use to loosen a bolt?
Adjustable wrench
Socket wrench
Box-end wrench
Open-end wrench
6
Which of the following does the programmer define as the origin of measurements on the workpiece?
Part Zero Point
Machine Zero Home
Work Offset
Tool Reference Point
7
_____ is the operaton used to machine a precise size
Finish boring
Taping
Reaming
Precision drilling
8
What is a CNC milling machine with a tool changer and an enclosure called?
Milling Center
Manual Machining Area
Machining Center
CNC Center
9
CNC stands for
Concise Numerical Control
Computer N-Code Classification
C-Axis Numerical Classification
Computer Numerical Control
10
What feature in the figure shown is a Chamfer?
B
C
D
A
11
A _____ enlarges the upper part of a hole and has a square bottom
Counterbore
Auger bit
Countersink
Thru hole
12
Layout lines use __________ to show the location of a hole's center point.
Crosshairs
Circles
Squares
Arcs
13
To increase torque used with a slotted screwdriver this most increase in size: _____
Handle Diameter
Blade width
Screwdriver shaft length
Fastener's diameter
14
The vertical band saw is used to _____
Perform rough cuts to save machining time
Cut intricate curves or patterns
Cut metal stock into shorter pieces
All of the above
15
On a horizontal machining center, which axis always moves the tool toward or away from the workpiece?
Z-axis
A-axis
X-axis
B-axis
16
Cutting fluids can be used to
All of these
Lubricate and reduce friction
Increase the life of cutting tools
Reduce the amount of heat generated
17
Very thin stock is specified using _____
Gauge numbers
Millimeters
Four decimal places
Decimal equivalents
18
Sets of values used to determine the location of the tool tip relative to the programmed reference point are known as
Magnitudes
Scalars
Orders
Offsets
19
The __________ is a rotary cutting tool made of a piece of round steel stock.
Prick punch
Twist drill
Ball peen hammer
Center punch
20
A lathe is the best machine tool to use when putting __________ on a round piece of stock.
Holes with a chamfer
Slots
A finished diameter
An art design
21
Counterbore diameter that is __________ larger than the diameter of the head of the socket head cap screw
1/8 "
3/8 "
3/64 "
1/64 "
22
On a horizontal number line, positive numbers are to the __________ of zero.
Left
South
Top
Right
23
The __________ portion of the bit is used to guide the counterbore into a hole and ensure alignment
Jig
Land
Pilot
Margin
24
The Cartesian coordinate system is
The method used for tool changing
A grid that identifies points on a plane
A computer that controls movements
A program for designing parts
25
The type of wrench best suited for the final tightening of a nut is __________.
An adjustable wrench
A striking face wrench
A box-end wrench
An open-end wrench
26
Which of the following machines utilizes a rotating workpiece?
Vertical machining center
Turning center
Horizontal machining center
Parallel machining center
27
The number stamped on the shank of a drill indicates the drill's
Material type
Size
Maximum rotational speed
Maximum depth
28
Insert the shank of the reamer this amount into the drill press's chuck to allow the reamer to "float" or "flex"
1/2" to 3/4"
3/4" to 1"
1/4" to 1/2"
1/8" to 3/8"
29
Proper __________ is required to keep the blade from flexing, jamming, or breaking
Speed
Blade angle
Blade tension
Air flow
30
Reaming large holes & soft materials, the drill creating the pilot hole can be smaller than the diameter by as much as ?
should be the same size
1/64 "
1/32 "
1/16 "
31
A __________ should always be used when removing chips or saw dust from the saw table
Mop
Towel
Brush or hand broom
Hand
32
The distance along each axis from the machine zero home position to the programmed reference point is known as the
Axis Origin
Tool Offset
Work Offset
Tool Wear Offset
33
A __________ is best used for determining the number of threads per inch on a fastener
Steel Tape
Pitch gauge
Torque chart
Bolt chart
34
On a horizontal machining center, the Y-axis corresponds to the
Work table moving left and right
Tooling turret moving up and down
Spindle moving up and down
Spindle moving forward and backward
35
During the cutting action, the tool tip __________ the metal until the metal's fracture point is exceeded
Shears
Slices
Deforms
Melts
36
The part of a lathe that clamps the workpiece in place is called what?
Spindle
Tool Changer
Chuck
Ways
37
A counterbore _____
Has a pilot
Is used to create cone shaped holes
Has a copilot
Has a tap
38
The _____ is used to control how deep a countersink enters the work piece
Micrometer collar
Inside micrometer
Feeler gauge
Depth stop
39
To securely clamp the tool during the machining process is the job of the
Tool Changer
Work Holder
Tool Holder or Spindle
Work Fixture
40
The maximum strength is reached when thread engagement reaches _____
75 %
35 %
45 %
60 %
41
The vertical band saw _____
Is not used to remove excess material
Uses gravity to force the blade through the material
Holds its blade parallel to the floor
Can cut intricate shapes
42
What is the
machining center
called when the spindle and tool are oriented
vertically
?
Vertical machining area
Vertical CNC center
Vertical milling center
Vertical machining center
43
Reamers _____
Have only one cutting edge
Are used to create pilot holes
Have multiple cutting edges
Come in only four sizes
44
__________ start the saw with the blade in contact with the material
Sometimes
Never
Always
Most of the time
45
What type of assembly can a threaded fastener create?
Semi-permanent
Both permanent and semi-permanent
Permanent
It is used in every type of manufacturing process
46
Which wrench has speed of use as a benefit?
Combination wrench
Backup wrench
Socket wrench
Hex key wrench
47
Which of the following is not true about countersinking?
Countersinking creates a cone shaped opening in a hole
Countersinking allows a flat head screw to sit below the surface of a part
None of the above
Countersinking can be performed on a machining center
48
What is the primary interface between the machine operator and the machine?
Tool Spindle
HMI (Human-Machine Interface) Panel
Andon Board
CNC (Computer Numerical Control)
49
A built-up edge condition of a cutting tool causes it to
Reduce friction
Increase the feed rate
Cut more shallow
Cut more deeply
50
Which of the following allows the CNC control to translate the directions in a program into machine movements?
Control coordination service
Cartesian coordinate system
Computer controlling system
Calligraphy coordinate system
51
With Hand tapping, the tap should be rotated CCW for 1/2 turn following each 1 turn CW to __________.
Break off the chips to avoid jamming the tap
Ensure the tap is running straight
Relieve the strain on the tap
Allow cutting fluid to enter the hole
52
Which of the following is not a part of the twist drill?
Tang
Web
Shank
Chip breaker
53
Layout work is the operation of
Transferring data from a technical drawing to the part
Designing a part on a CAD station
Preparing a machine for operation
Cutting material to match a pattern
54
Round stock is specified using _____
Material number and length
Radius and length
Diameter and length
Diameter and gauge number
55
Which of the following is an example of an unsafe practice while operating a drill press?
Using a brush to remove metal chips from the drill press table
All of these
Stooping down to look closely at the part as the drill enters the metal
Hitting the stop button after a tool shatters
56
Which of the following is not true about chamfered holes
A chamfer allows screws to be easier to fasten
A chamfer allows the tap to be intserted easier
The counterbore tool is used to chamfer holes
None of the above
57
A drill press
Is only used to create slots
Uses a rotating tool to cut into material
Rotates the workpiece against the cutting tool
Cannot create a counter bore
58
On a horizontal machining center, the X-axis corresponds to the
Spindle moving forward and backward
Tooling turret moving up and down
Spindle moving up and down
Work table moving left and right
59
A drill press will cut undersized holes if the
Drill bit has a worn margin
Drill is run at excessive speed
Drill is positioned off center
Drill is not lubricated
60
A tap _____
Looks like a countersink tool
Looks like a drill bit
Looks like an end mill
Looks like a screw
61
What size tap drill should be used to prepare the hole shown in the part drawing for the 7/16 threads?
39949
#7 (0.2010)
0.4531
U (0.3680)
62
This wrench is used to hold a fastener in place
Backup wrench
Socket wrench
Hex key wrench
Combination wrench
63
Which machine is best suited for drilling and reaming 1/4" plate steel?
Saw
Drill press
Surface plate
Arbor press
64
Machine zero can be located in __________ depending on manufacturer and machine type.
Various positions
The same position
The center position
The top left position
65
A chip that is broken by the use of a chip breaker on the cutting tool is called a
Continuous chip
Broken chip
Broken continuous chip
66
A drill press is used to
Fasten screws
All of these
Manufacture drills
Create holes
67
Which of the following is an example of an unsafe practice while setting up the drill press?
Deciding to hold a large part in place by hand instead of using the vise
All of these
Standing with legs clear of the table when loosening the table lock
Removing the drill chuck key after removing a drill from the chuck
68
The blade on a horizontal band saw __________ to continuously cut into the material.
Overheats if used
Runs back and forth
Is not designed
Runs in one direction
69
The Phillips screwdriver has this type of head
Straight
Socket
Cross-shaped
Star-shaped
70
On the vertical band saw, the blade guides should be set __________
3/8" to 1/2" above the stock at its thickest point
As high above the stock as possible to avoid rubbing
2 1/2" above the stock
So they lightly brush the top of the material being cut
71
A reamer is fed into a pre-drilled hole _____
Using one smooth, constant pressure operation
Once as a rough cut and a second time as a finish cut
Using a pecking cycle to remove chips
Without the use of cutting fluid
72
This wrench has an L-shaped or T-shaped handle
Combination wrench
Backup wrench
Socket wrench
Hex key wrench
73
Reamers are used to machine holes _____
Only after the hole has been prepared by a regulara twist drill
All of the above
That have precise diamters
That are smooth on the inside
74
__________ or program zero point is more common as a reference point than using machine coordinates
Fixture zero point
Stock zero point
Offset zero point
Part zero point
75
A worn drilling tool
Requires a higher spindle speed to cut properly
Should be used until it no longer cuts the materia
Should only be used to create pilot holes
Should not be used
76
A milling machine is capable of removing material in __________ using a cutting tool to achieve a desired shape.
In only one dimension
Reverse motion only
All three dimensions
77
The drill diameter should be smaller than the size of the reamed hole diameter by __________ inch.
1/8
1/16
should be the same size
1/64
78
3-dimensional Cartesian coordinate system has three axes, which are
A, B, and C
X, Y , and Z
79
X, Y, & Z are the __________ for a machining center.
Tool designations
Three axes of travel
Electric motors used
Three variables
