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2014 Applied Machining 2

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

A gear tooth vernier caliper measures the tooth thickness at the:
a.
Base circle
b.
Outside diameter
c.
Root diameter
d.
Pitch diameter
 

 2. 

Loose vertical milling machine slides:
a.
Can be tightened with the table clamps
b.
Are tightened with gib adjustment screws
c.
Need to be lubricated
d.
All of the above
 

 3. 

When turning to size predictably on a lathe:
a.
A short skim cut is taken and measured, the cross feed collar zeroed, and the roughing depth is dialed. A trial cut is taken and the crossfeed-screw backed off after noting the setting. The diameter is checked, the tool returned to the start position, and the dial reset to its former position.  The cut is taken. This procedure is continued to finish size.
b.
A short skim cut is taken and measured, the cross feed collar zeroed, and the roughing depth is dialed. A trial cut is taken, it is checked, and the cut is taken. This procedure is continued to finish size.
c.
A trial cut is taken that looks like the approximate diameter or slightly over and it is checked with a micrometer. This procedure is continued to finishing.
d.
A trial cut is taken, a spring caliper is set to the size, and it is measuredwith a rule. This is sufficiently accurate for finishing most outside diameters.
 

 4. 

When fabricating a set of steps ___
a.
You must measure the tread run to cover at least the distance to the center of the heel of the human foot
b.
You must make sure the tread rise is grater than the tread run
c.
The general rule is that the sum of the tread rise and tread run should equal 17 inches
d.
All of the above
 

 5. 

End mills capable of making their own starting holes are termed:
a.
Center cutting
b.
Center drilled
c.
Plunge cut
d.
Starting hole
 

 6. 

To remove burrs in a machine spindle, you should use a(n) ___ reamer.
a.
tapered
b.
tapered pipe
c.
machine
d.
expansion
 

 7. 

Threading tools are checked for accuracy on the 60-degree angle by using
a.
Thread gage
b.
Center gage
c.
Tool angle gage
d.
Screw pitch gage
 

 8. 

To mount a workpiece on a machine table, you should hold it in a
a.
collet
b.
hold-down
c.
chuck
d.
vise
 

 9. 

The ability of a steel to resist cutting and scratching is called
a.
ductility
b.
hardness
c.
strength
d.
elasticity
 

 10. 

The quill lock is used on the vertical milling machine to:
a.
Change tools
b.
Provide rigidity when milling
c.
Take up backlash
d.
All of the above
 

 11. 

An advantage of turning between centers in a lathe is that:
a.
It produces less chatter than by other methods
b.
A more positive drive is possible
c.
Long work can be supported in a steady rest so facing, drilling or boring can be carried out
d.
A shaft can be removed or turned end for end without loss of
concentricity
 

 12. 

To remove cast iron chips safely from a machine, you should use (a)
a.
scraper
b.
hook
c.
compressed air
d.
brush
 

 13. 

Measurements:
a.
Can be made any time
b.
Should be made only when the machine is turned off
c.
Can be made while the spindle is slowly turning
d.
Have to be accurate
 

 14. 

What is the center distance in inches between 2 gears with pitch diameters of 1.600 and 2.400 inches?
a.
2.400
b.
2.000
c.
1.800
d.
2.200
 

 15. 

The strongest gear tooth is made with a pressure angle of how many degrees?
a.
14.5
b.
19
c.
20
d.
22
 

 16. 

The center of an existing hole is aligned with the spindle axis on the vertical milling machine with the aid of:
a.
A dial test indicator
b.
A precision rule
c.
An edge finder
d.
All of the above
 

 17. 

The proper surface of a wheel to use for grinding high-speed steel tools is the
a.
side
b.
flats
c.
face
d.
edge
 

 18. 

To drill a 15 bolt hole circle, the rotary table is moved____degrees for each hole.
a.
23
b.
25
c.
22.5
d.
24
 

 19. 

A long, slender shaft must be turned and threaded with an acme thread on a lathe, it is too springy to machine without support. What can be used to back up the tool?
a.
Steady rest
b.
Tool rest
c.
Follower rest
d.
Compound rest
 

 20. 

When filing on a lathe, the safest way is to:
a.
File with one hand only
b.
File right handed
c.
Wear gloves while filing
d.
File left handed
 

 21. 

In what terms are tapers expressed?
a.
By included angles and by degrees and minutes
b.
By measuring the offset of the tailstock and by measuring the taper per inch or taper per foot
c.
In millimeters per foot and in radians
d.
in degrees and minutes or by taper per inch or taper per foot
 

 22. 

The surface of the tool shank that supports the cutting tip is called the
a.
base
b.
face
c.
rake
d.
land
 

 23. 

Gear guards should be made ___
a.
From Lexan in order to see all the working parts
b.
From ¼ inch steel plate to make sure the guards can withstand body weight
c.
From lightweight materials reinforced with angle iron
d.
All of the above
 

 24. 

What best describes the term Durometer
a.
Resistance to compression
b.
Toughness against abrasion
c.
Springiness whole in use
d.
Flexibility to bend
 

 25. 

The gears that can be measured with a micrometer and 2 pins are:
a.
Odd numbered teeth spur gears
b.
Even numbered teeth spur gears
c.
Spur gears
d.
All of the above
 

 26. 

The bore of machined parts such as gears and pulleys are not finished by drilling in a lathe without further machining, because drills:
a.
Make bell mouthed holes that must be corrected by reaming or boring
b.
Are not made in standard shaft sizes
c.
Tend to produce undersize holes that run eccentric to the work axis
d.
Tend to produce oversize holes that run eccentric to the work axis
 

 27. 

The process that eliminates brittleness in a steel is
a.
tempering
b.
annealing
c.
cold working
d.
case hardening
 

 28. 

What should you use to remove a chuck that screws on a lathe spindle?
a.
Length of chain
b.
Spanner wrench
c.
Piece of angle iron
d.
Block of wood
 

 29. 

What is the center distance in inches of 2 gears with 24 teeth and 48 teeth and a diametral pitch of 12?
a.
2.400
b.
3.000
c.
2.600
d.
2.800
 

 30. 

The process of cleaning up an uneven edge formed by grinding is called
a.
buffing
b.
glazing
c.
scraping
d.
honing
 

 31. 

A workpiece which is to be clamped to the vertical milling machine table can be aligned with the table axis by:
a.
Indicating the side of the work piece
b.
Placing it against stops in the T-slots
c.
Measuring from the edge of the table to the side of the work
d.
All of the above
 

 32. 

To remove a considerable amount of material, you should use which kind of an end mill?
a.
Regular helix
b.
Roughing
c.
Fast helix
d.
Slow helix
 

 33. 

Angular cuts on work pieces in vertical milling machines can be made:
a.
By tilting the workpiece
b.
With formed peripheral teeth on an milling cutter
c.
By tilting the work head
d.
All of the above
 

 34. 

To raise a surface gauge for measuring above its height, you should support it on a
a.
box parallels
b.
right-angle plate
c.
surface plate
d.
pair of V-blocks
 

 35. 

In what position is the compound normally set for cutting right hand external Acme threads on a lathe?
a.
90 degrees to the cross slide
b.
14½ degrees to the right
c.
14½ degrees to the left
d.
29 degrees to the right
 

 36. 

The universal lathe chuck has:
a.
A special adjusting system that makes the jaws center round work more accurately
b.
Four jaws, each of which can move without affecting the position of the others
c.
Three jaws that move independently of each other
d.
Two, three or six jaws that all move in or out an equal distance
 

 37. 

A flaring cup grinding wheel produces a relief that is
a.
tapered
b.
concave
c.
convex
d.
flat
 

 38. 

When you grind the end of a high-speed steel tool, the steel
a.
gives off dark red sparks
b.
turns black
c.
smokes excessively
d.
creates a foul smell
 

 39. 

The main advantage of boring over reaming in the lathe is that:
a.
Boring corrects axial misalignment and reaming does not
b.
Boring corrects any eccentricity in the bore and reaming does not
c.
Better finishes are obtainable
d.
The process of finishing the bore to a precision diameter can be done more quickly
 

 40. 

When measurements are made with a gear tooth vernier caliper, it is important that
a.
The gear is cooled off
b.
All burrs are removed from the gear
c.
The gear teeth are lightly lubricated
d.
All of the above
 

 41. 

The dimension given in a handbook for gear measurements over pins:
a.
Is usually for a diametral pitch of one
b.
Needs to be divided for diametral pitches other than one
c.
Is calculated for a specific pin diameter
d.
Ail of the above
 

 42. 

A view showing a portion of a part cut away is a
a.
plan view
b.
sketch
c.
proportion
d.
section
 

 43. 

The cutting edge of the boring tool when placed in an offset boring head:
a.
Must be in line with the axis of the boring head tool slide
b.
Can be at any angle to the axis of the tool slide
c.
Must be at right angles to the axis of the tool slide
d.
None of the above
 

 44. 

Eye protection in a machine shop:
a.
Must be worn at all times
b.
Should contain tinted lenses
c.
Can be sunglasses
d.
is not important
 

 45. 

The simplest way to check a thread is:
a.
To try the mating part
b.
To note when the threads come to a point
c.
With a pair of outside calipers
d.
None of the above
 

 46. 

Under normal cutting conditions, the depth of cut for an end mill should be no more than:
a.
2 times the cutter diameter
b.
1/4 the cutter diameter
c.
1/2 the cutter diameter
d.
The diameter of the cutter
 

 47. 

Tools are secured in the lathe tailstock spindle:
a.
With a spindle clamp
b.
By their Morse taper shank
c.
With a setscrew
d.
With a quick-change holder
 

 48. 

A person is dressed safely for machine work when wearing:
a.
A cap over long hair
b.
No jewelry
c.
Short sleeve shirt
d.
All of the above
 

 49. 

A gear tooth vernier caliper measures:
a.
Chordal tooth thickness
b.
Chordal addendum
c.
Diametral pitch
d.
All of the above
 

 50. 

The effect of a very small feed rate on end mills is
a.
Cutting edge chipping
b.
Long lasting cutting edges
c.
Rapid cutting edge failures
d.
Very good surface finishes
 

 51. 

The total tread run of a set of steps is calculated by multiplying the tread run dimension by one less than the number of tread rises.
a.
False
b.
True
 

 52. 

The points of most general purpose twist drills have an included angle of ___ degrees.
a.
118
b.
88
c.
59
d.
29
 

 53. 

The index line of a micrometer is divided into 40 parts per inch. Each turn of the micrometer thimble moves the spindle
a.
0.040 in.
b.
0.004 in.
c.
0.010 in.
d.
0.025 in.
 

 54. 

Hand railings shall be made 48 inches high with the center railing at 21 inches and the stanchion leg span not to exceed eight feet, center to center.
a.
False
b.
True
 

 55. 

The longest end mill tool life can be obtained when using:
a.
The correct coolant
b.
The right cutting speed
c.
A feed rate that is not too low
d.
All of the above
 

 56. 

An Acme threading tool forms an included angle of how many degrees?
a.
55
b.
60
c.
30
d.
29
 

 57. 

What happens when cast iron is cooled too rapidly?
a.
Recommended
b.
Becomes porous
c.
Turns white
d.
Cracks
 

 58. 

The half-nut on the lathe should be engaged when threading odd numbered threads when the threading dial is positioned at:
a.
Any line
b.
Only one line
c.
Opposite lines only
d.
Any numbered line
 

 59. 

Gear tooth dimensions can be measured with:
a.
An optical comparator
b.
A micrometer and 2 pins
c.
A gear tooth vernier caliper
d.
All of the above
 

 60. 

Machine countersinks have an included angle of ___ to ___ degrees.
a.
15; 20
b.
60; 82
c.
45; 62
d.
30; 41
 

 61. 

Lower cutting speeds are used when machining:
a.
Tough materials
b.
Hard materials
c.
Abrasive materials
d.
All of the above
 

 62. 

A work piece is center drilled in the lathe for the purpose of:
a.
Spotting a hole for drilling or for turning between centers
b.
Facing to the center of the work piece
c.
Placing it on a mandrel and for turning between centers
d.
Turning between centers only
 

 63. 

What does a toolmaker use to check the accuracy of shop gauges?
a.
Micrometer caliper
b.
Steel rule
c.
Vernier scale
d.
Gauge blocks
 

 64. 

What is the outside diameter in inches for a 48 tooth gear, 10 diametral pitch?
a.
5.000
b.
5.200
c.
5.400
d.
5.600
 

 65. 

The metal column that separates the flutes of a drill is called the
a.
land
b.
shank
c.
web
d.
helix
 

 66. 

The spindle speed range is changed from high to low on the vertical milling machine with:
a.
The spindle motor running
b.
The spindle coasting
c.
The spindle stopped
d.
None of the above
 

 67. 

For boring operations on a lathe, you should hold the workpiece in a
a.
vise
b.
collet
c.
chuck
d.
hold-down
 

 68. 

When milling a cavity on the vertical milling machine:
a.
The cutting pressure should be with the cutter rotation
b.
The backlash in the table feed mechanism should be ignored
c.
The cutting pressure should be against the cutter rotation
d.
None of the above
 

 69. 

The pitch of the thread is the:
a.
Distance between a point on a screw thread to a corresponding point on the next thread
b.
Distance a nut will travel in one revolution on a two lead screw thread
c.
Same as the number of threads per inch
d.
Helix angle
 

 70. 

When milling a keyway in a shaft on the vertical milling machine
a.
The cutter should be sharp
b.
The cutter has to be the correct size
c.
The cutter needs to be centered on the shaft
d.
All of the above
 

 71. 

What polarity is used when stick welding stainless steel?
a.
DCRP
b.
DCSP
c.
AC
 

 72. 

Before indicating a tool head square to the table, on a vertical milling machine, tighten:
a.
The saddle clamps
b.
The table damps
c.
The knee clamping screws
d.
All of the above
 

 73. 

What do the last two digits of the SAE steel code indicate?
a.
Percentage of alloy
b.
Weight per foot
c.
Percentage of carbon
d.
Brinell hardness
 

 74. 

The number of threads per inch can be checked with a:
a.
Metric rule by counting
b.
Tool gage
c.
Ring gage
d.
Screw pitch gage
 

 75. 

When the tip walks off sideways on a .200 inch diameter edge finder, the spindle axis is what part of an inch from the work piece edge?
a.
.400
b.
.200
c.
.300
d.
.100
 

 76. 

The working depth of a tooth on a 40 tooth gear, 10 diametral pitch is closest to what part of an inch?
a.
.300
b.
.200
c.
.400
d.
.250
 

 77. 

Give two best ways to run a taper or crown on a roller
1)      Move compound out while turning the stock
2)      Off-set tailstock
3)      Taper attachment
a.
1 and 2
b.
1 and 3
c.
2 and 3
 

 78. 

What is the most important factor to consider when welding aluminum?
a.
Have it supported
b.
Straightedges
c.
Wear cotton
d.
Cleaning
 

 79. 

A lathe chuck wrench is a potential hazard:
a.
When it remains in the chuck
b.
When it sits on a workbench
c.
When placed on a tool board or lathe backboard
d.
All of the above
 

 80. 

Threads are cut or chased on a lathe with a single point tool by:
a.
Making a series of cuts in the same groove
b.
Moving the carriage by means of the rack that is located under the front way
c.
Using a threading die
d.
Setting the correct feeds on the quick-change gearbox
 

 81. 

Measurements:
a.
Can be made while the spindle is slowly turning
b.
Have to be accurate
c.
Should be made only when the machine is turned off
d.
Can be made any time
 

 82. 

The part of a lathe that holds live or dead center is called the
a.
tailstock
b.
headstock
c.
tailpiece
d.
tail grip
 

 83. 

The cutting speed used, when gear cutting, is determined by the:
a.
Diameter of the gear being cut
b.
Size of the gear teeth being cut
c.
Diameter of the gear cutter
d.
Number of teeth on the gear cutter
 

 84. 

The VARI-speed spindle on the vertical milling machine speed range is changed from high to low with:
a.
The spindle motor running
b.
The spindle stopped
c.
The spindle coasting
d.
None of the above
 

 85. 

What is the distance a rotary table is moved off center to drill a 5.258 bolt hole circle?
a.
5.258
b.
2.129
c.
2.629
d.
3.629
 

 86. 

A lathe steady rest should be used to:
a.
Hold the tool steady so it won't chatter
b.
Support long shafts
c.
Support workpieces that extend three diameters from the chuck
d.
Support long shafts that are being threaded full length
 

 87. 

What else is required when brazing metals?
a.
Cutting tip
b.
Rosin
c.
Flux
d.
Oxidizing flame tip
 

 88. 

Accurate round holes can be machined on a vertical milling machine with the use of this:
a.
Offset boring head
b.
Rotary table
c.
Right angle milling attachment
d.
Circular milling attachment
 

 89. 

What tool should you use for laying out and measuring distances?
a.
Dividers
b.
Hermaphrodite caliper
c.
Outside caliper
d.
Template
 

 90. 

When milling a cavity on the vertical milling machine:
a.
The backlash in the table feed mechanism should be ignored
b.
The cutting pressure should be against the cutter rotation
c.
The cutting pressure should be with the cutter rotation
d.
None of the above
 

 91. 

Circular slots are best machined on the vertical milling machine with:
a.
Circular slot cutters
b.
The aid of a rotary table
c.
The workplace clamped to the table
d.
All of the above
 

 92. 

Sixty degrees thread cutting on a lathe is best done with the compound set at 29 degrees so that:
a.
It will be swung out of they way to make the cross feed micrometer dial more visible
b.
Most of the cutting is done on the leading edge of the tool as it is fed in, but the compound is brought back to zero at the end of each cut causing some cutting on the trailing edge on the next pass
c.
When the cross feed is brought back to zero after each cut and the compound is fed in, a slightly smaller amount is removed from the trailing side of the tool for finishing
d.
Threads can be made more quickly than with straight in feed
 

 93. 

The vertical scale of the gear tooth vernier caliper is set to the:
a.
Chordal addendum
b.
Chordal dedendum
c.
Whole depth
d.
Circular tooth thickness
 

 94. 

What is the pitch diameter of a gear with 48 teeth, 6 diametral pitch?
a.
15
b.
12
c.
18
d.
8
 

 95. 

The best materials to make impact resistant see-through splash guards is__________
a.
Safety glass
b.
Polycarbonate
c.
Teflon-type products
d.
Acrylic
 

 96. 

Excessive overhang of the tool, tool holder or compound rest of lathe can cause:
a.
Chatter and broken tool points
b.
The feed rate to change
c.
The tool to swing into the lathe dog
d.
All of the above
 

 97. 

The two dimensions of a cylinder are its ___ and its ___.
a.
diameter; length
b.
inside diameter; outside diameter
c.
width; diameter
d.
diameter; radius
 

 98. 

The lathe follower rest is used for:
a.
Resting the toll so it will not cause the work to chatter and for supporting the tool for extra heavy cuts
b.
Supporting long, springy work and supporting long work for internal machining
c.
Supporting long, springy work by following the tool
d.
Turning workpiece without a center and thus reducing friction; higher speeds can be used
 

 99. 

You should carry pointed tools in a tote box or in a
a.
deep tool box
b.
cloth bag
c.
drawer-type chest
d.
pouch fastened to your belt
 

 100. 

Rigidity in a boring operation on a vertical milling machine is obtained by:
a.
Using a short, large diameter boring tool
b.
Decreasing the feed rate
c.
Increasing the cutting speed
d.
All of the above
 

 101. 

When is the tool head alignment checked with an indicator on a vertical milling machine?
a.
Before any precise machining square to the table surface is performed
b.
Once every day
c.
When any tool changing takes place
d.
Before any machining takes place
 

 102. 

What part of an inch is the whole depth of tooth on a 36 tooth, 8 diametral pitch, 20 degrees pressure angle gear?
a.
.281
b.
.261
c.
.301
d.
.241
 

 103. 

To prevent cast iron surface plates from rusting, you should coat them lightly with
a.
oil
b.
grease
c.
shellac
d.
wax
 

 104. 

How can tapers be turned in a lathe?
a.
With the compound, taper attachment, offset tailstock and tool methods
b.
By the off hand method, the taper slide method, and the tapered tool method
c.
By the angular slide attachment, the offset center, and the single tool
d.
None of the above
 

 105. 

Eye protection in a machine shop:
a.
Should contain tinted lenses
b.
Must be worn
c.
Is not very important
d.
Can be sunglasses
 

 106. 

An adjustable boring head is used on a vertical milling to make:
a.
Nonstandard size holes
b.
True cylindrical holes
c.
Holes in specific locations
d.
All of the above
 

 107. 

To remove a live center from a lathe, you should tap it with a
a.
rawhide hammer
b.
chuck key
c.
knockout bar
d.
piece of barstock
 

 108. 

The melting point of aluminum is closest to what temperature.
a.
1600°F
b.
8OO°F
c.
875°F
d.
none of the above
 

 109. 

A name for the degree of accuracy needed for a part to function is
a.
fit
b.
precision
c.
tolerance
d.
allowance
 

 110. 

What part of an inch is the tooth thickness for a 50 tooth gear, with a 6 diametral pitch?
a.
.304
b.
.283
c.
.241
d.
.262
 

 111. 

The distance between the centers of two adjacent holes on a bolt circle is the
a.
chord or pitch chord
b.
pitch diameter
c.
diagonal
d.
diametral pitch
 

 112. 

Iron parts are usually made from
a.
castings
b.
barstock
c.
sheet
d.
forgings
 

 113. 

A person is dressed safely for machine work when wearing:
a.
Short sleeve shirt
b.
No jewelry
c.
A cap over long hair
d.
All of the above
 

 114. 

The independent lathe chuck has:
a.
A special adjusting system that makes the jaws center round work more accurately
b.
Two, three or six jaws that all move in or out an equal distance
c.
Four jaws, each of which can move without affecting the position of the others
d.
Three jaws that move independently of each other
 

 115. 

The fixed ratio spindle on the vertical milling machine speed range is changed from high to low with:
a.
The spindle stopped
b.
The spindle motor running
c.
The spindle coasting
d.
None of the above
 

 116. 

A gear has a pitch diameter of 3.800 inches and a diametral pitch of 10. How many teeth are on the gear?
a.
38
b.
34
c.
32
d.
36
 

 117. 

What does the "A" represent in the grinding wheel code "A 60 N 10 V W"?
a.
Coarse or fine
b.
Type of abrasive
c.
Type of bond
d.
Grade or hardness
 

Matching
 
 
Match the item number with the gear tooth term describing it. (Refer to Figure 1)
grp001-1.jpg
a.
Addendum
b.
Dedendum
c.
Whole Depth
d.
Pitch Diameter
e.
Tooth Thickness
f.
Outside Diameter
g.
Center Distance
h.
Circular Pitch
i.
Working Depth
j.
Pressure Angle
 

 118. 

Item 6
 

 119. 

Item 8
 

 120. 

Item 9
 

 121. 

Item 2
 

 122. 

Item 3
 

 123. 

Item 1
 

 124. 

Item 10
 

 125. 

Item 4
 

 126. 

Item 5
 

 127. 

Item 7
 



 
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