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Prepared for Shan 4.2
mh-Final
103
Other
Not Applicable
02/22/2015
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Term
01. The acronym WHMIS stand for:
 Definition
Workplace hazardous materials information system
Term
02. Helical gears with parallel shafts:
 Definition
Have opposite hand of helix
Term
03. The distance between the teeth of a six inch smooth file compared to the teeth of a twelve
 Definition
Less
Term
04. The purpose of draw filing is to:
 Definition
Produce a smooth flat surface
Term
05. A mill file is a
 Definition
single cut file
Term
06. A hacksaw blade will bind and break if:
 Definition
The set of the teeth is worn
Term
07. The best cold chisel for drawing back "run out" when drilling is the:
 Definition
diamond point chisel
Term
08. The taps that make up a set are:
 Definition
plug, taper, bottoming
Term
09. To cut an external thread by hand, use a:
 Definition
split die
Term
10. The tap drill size for a #10-32 UNF-2B is:
 Definition
MD=10*.013+.06=.190
TDS=MD-P=.190-1/32=.159
Term
11. The amount of material left for removal by a 1/2 inch diameter hand reamer is generally:
 Definition
.005"
Term
12. A device used to align two parts of an assembly after they have been correctly located is:
 Definition
tapered pin
Term
13. The most common material surface plates are made from are:
 Definition
granite
Term
14. The taper of an ANSI tapered pin is:
 Definition
.25 TPF
Term
15. A surface height gauge may be used for:
 Definition
- comparative height measurements
- setting up work on machines
- laying out parallel lines
Term
16. Steel rules are generally used:
 Definition
to measure to the nearest 1/64"
Term
17. The most accurate square is a:
 Definition
cylindrical square
Term
18. The punch that produces light indentations for permanent layout is a:
 Definition
prick punch
Term
19. The pitch of an imperial micrometer equals:
 Definition
.025"
Term
20. The most commonly used gauge blocks in a machine shop are:
 Definition
B set
Term
21. Tools which are used to measure or to layout angles are the:
 Definition
combination square set, vernier protractor and sine bar.
Term
34. Annealing of high carbon tool steel requires:
 Definition
Heating the steel to above it's upper critical temperature, followed by slow cooling in furnace, lime or sand
Term
35. A co-ordinate measuring system relied on a pattern of shadows called a:
 Definition
moire fringe
Term
36. On what kind of metals can you use a liquid dye penetrant?
 Definition
all metal
Term
37. The three main parts of the carriage of a lathe are:
 Definition
apron, saddle and cross slide
Term
38. Setting the lathe tool above the center line of the lathe, for OD turning will effective:
 Definition
end relief angle
Term
39. The direction in which a chip flows off the workpiece on a face milling operation influenced by the:
 Definition
rake angles
Term
40. Knurling the surface of a workpiece will:
 Definition
- increase one's ability to grip the surface
- increase the workpiece diameter
- improve workpiece appearance
Term
41. On a lathe having a lead screw of 6 TPI, it is not necessary to use the threading dial to cut:
 Definition
12, 18, 24 TPI
Term
42. Feed on a lathe is the distance travelled by the:
 Definition
tool in inches per revolution
Term
43. For gears are in mesh in a compound gear train having the following DR#1=2", dn#1=5", DR#2=3", dn#2=6". Drive #1 turns a speed of 1500 rpm, What will the final driven gear rotate?
 Definition
RPM=1500*2/5*3/6=300
Term
44. The rear tool post o a turret lathe is generally used for holding which tool?
 Definition
cut off tool
Term
45. A follower rest is attached to:
 Definition
the saddle
Term
46. The best fluid for keeping the work and tool cool is:
 Definition
soluble oil
Term
47. The best fluid for lubricating the cutting edge of the tool is:
 Definition
cutting oil
Term
48. Which is the lease desirable coolant to use when machining magnesium?
 Definition
compressed air
Term
49. The pitch of a thread equals the lead only on:
 Definition
single start thread
Term
50. Acme threads differ form Brown and Sharpe worm threads in that:
 Definition
The B&S worm thread is deeper than the acme thread
Term
51. A bar turner or box tool for a turret lathe is:
 Definition
a combination steady rest and cutter
Term
52. When cutting a three start thread having 12 TPI, you set the quick change gear box to:
 Definition
L=3*1/12=1/4
QCGB=1/L=4
Term
53. A 2" long compression spring with 8 coils is wound on a lathe, when spring is fully compress, it is 1" long. Therefore the quick change gear box must be set to:
 Definition
8/2=4tpi
Term
54. Climb milling is feeding the workpiece:
 Definition
with the cutter rotation
Term
55. Conventional milling is feeding the workpiece
 Definition
against the cutter rotation
Term
56. Helical tooth milling cutters vs non helical milling cutter: (slap or plain mill)
 Definition
- are smoother cutting
- use less force to cut
- give a better finish
Term
57. Straddle and gang milling are normally use for:
 Definition
production milling
Term
58. Which two attachments are most suitable for the cutting of two key ways at 90 degrees (not key seats):
 Definition
slotting attachment and dividing head
Term
59. When milling a long rack, the most accurate way would be to use a:
 Definition
rack milling attachment and rack indexing attachment
Term
60. Milling the teeth on a regular lead, helical, plain milling cutter, what type of indexing is used?
 Definition
simple indexing
Term
61. One complete revolution of the index crank of a dividing head, revolves:
 Definition
work through and angle of 9 degrees
Term
62. Gearing for linear graduating are connected between:
 Definition
the dividing head spindle and the table feed screw
Term
63. The lead of a spiral, helix, or scroll is:
 Definition
distance required to make one complete revolution
Term
64. Which of the following operation can be used for gear generation?
 Definition
Hobbing, grinding, shaping
Term
65. The normal tooth outline of spur gears is the:
 Definition
involute form
Term
66. Helical gears:
 Definition
- are stronger than spur gears of the same size
- are quieter running
- can connect parallel shafts
- can connect shafts at an angle
Term
67. Helical gears pitch diameter may be changed by:
 Definition
- changing the number of teeth
- changing the diametral pitch
- changing the helix angle
Term
68. The pitch diameter of a helical gear would be based on the number of teeth divided by
 Definition
the DP
Term
69. Regarding helical gears , the NCP is smaller than the CP (T/F)
 Definition
T
Term
70. Excepting hypoid, bevel gears are used to:
 Definition
connect intersecting shafts
Term
71. The pitch diameter of a bevel gear is measured at the:
 Definition
large end
Term
72. When hand broaching, how many finishing teeth are on the broach:
 Definition
3
Term
73. When experience chatter when machine broaching, you should first:
 Definition
reduce the speed
Term
74. What is the total rise of the above cam?
 Definition
.375"
Term
75. What would be the lead of lobe #1?
 Definition
Lead=rise*360/Lobe degrees=.375*360/90=1.5"
Term
76. How many degrees of dwell are there?
 Definition
100 degrees
Term
77. What is the blank diameter to machine the cam if the base circle is 3.5"?
 Definition
Db=base+2*rise=3.5+2*.375=4.25"
Term
78. Which of the following operations are performed on horizontal boring mills?
 Definition
- line boring
- stub boring
- counter boring
Term
79. The surface produced by a facing chuck:
 Definition
is at right angles to the bore of a cylinder just machined on the same set up
Term
80. Vertical boring mills are particularly adapted for turning and boring jobs that:
 Definition
have a large diameters and fairly short length
Term
81. When using polar coordinates for locating holes on a circle:
 Definition
an angle and radius are required for each hole
Term
82. When locating the work piece on a jig borer, always move the table:
 Definition
in the direction of the arrows on the dials
Term
83. The purpose of the clapper box on the shaper is to:
 Definition
provide clearance for the cutting tool on the return stroke
Term
84. When does the work feed in relation to the cutting tool on a shaper:
 Definition
during the return stroke
Term
85. A universal table and a swivel vise on a shaper simplify:
 Definition
compound angular cuts
Term
86. A shaper cutting at 100 sfpm and a work piece length of 6" should be set a speed at (#stroke/min=CS*7/L)
 Definition
#stroke/min=100*7/7=100
Term
87. When a new cast iron casting is machined on a planer, it is normal to:
 Definition
rough machine all surfaces requiring machining and then finish
Term
88. Holes on planer tables (platens) are used to accommodate:
 Definition
plotin? and stop
Term
89. The table on slotters permits movements in:
 Definition
rotary, longitudinal and transverse direction
Term
90. In a grinding wheel, the cutters are the:
 Definition
grain
Term
91. The grade of a grinding wheel refers to the:
 Definition
strength which the abrasive is held together
Term
92. The ideal grinding wheel has a:
 Definition
bond just strong enough to permit the wheel to sharpen itself
Term
93. To ring test a grinding wheel you are:
 Definition
testing for crack
Term
94. A plain cylindrical grinder:
 Definition
has a wheel head and work head that do not swivel
Term
95. When long, slender work is being ground on cylindrical grinders, it is necessary to use:
 Definition
a steady rest
Term
96. On centreless grinders, how should the work rest be adjusted to get the best rounding of the work?
 Definition
work centre above the centre line of the the two wheels by half the diameter of the work
Term
97. In thru feed grinding, the speed of the regulating wheel determines the:
 Definition
finish
Term
98. When sharpening a helical shell mill the tooth rest should be mounted on:
 Definition
the wheel head
Term
99. When form cutters are being ground, the wheel face must be in line with the:
 Definition
face angle
Term
100. When cylindrical grinding, how must the diamond be set when dressing the wheel, with respect to the centerline of the wheel?
 Definition
on the exact horizontal centreline
Term
101. Excessive speed on a drilling operation would most likely cause:
 Definition
burning of tool lips
Term
102. In the classification of SAE 4140 steel, the last two digits indicate:
 Definition
the carbon content
Term
103. To drill 2 holes 105 degrees apart using direct indexing and the 24 hole plate circle, the number of spaces to move is:
 Definition
360/24=15
105/15=7
Term
104. When differential indexing, for negative rotation using compound gearing you should use one idler (T/F)
 Definition
T
Term
105. The distance between one point on a tooth to the same point on the next tooth , measure on the pitch circle, is called the:
 Definition
circular pitch
Term
106. When two gears are meshed and the driver has 25 teeth and the driven gear has 40 teeth, the gear ratio of this combination is:
 Definition
25/40=5/8
Term
107. What is the pitch diameter of each gear whose ratio is 2.5:1 and their center distance is 7 inch?
 Definition
PDg=2.5/3.5*2*CD=10
PDp=1/3.5*2*CD=4
Term
108. Which of the following gear ratio would be classified as (hunting tooth:
 Definition
47/158
Term
109. The Rockwell C scale uses a 150 kg weight and a:
 Definition
diamond cone point
Term
110. The abbreviations RMS and AA are used in the measurement of:
 Definition
surface finish
Term
111. A 60 tooth worm gear is in mesh with a three start worm. The lead is .600". The center distance is 2.7". What is the lead angle of the worm?
 Definition
LP=L/Nw=.6/3=.2
Cir=CP*Ng=.2*60=12
Cir=pi*PDg --> PDg=Cir/pi=3.82
CD=1/2(PDw+PDg) --> PDw=2CD-PDg=1.58
tan(lead angle)=Lw/cirw=.6/pi*1.58=.12
lead angle=6.89 degrees
Term
112. A gauge block build up of 4.5678" is required. Which would be the last build up gauge?
 Definition
4.000
Term
113. What type of hydraulic cylinder would be found on a surface grinder?
 Definition
double ended
Term
114. Which of the following is a free machining steel?
 Definition
1112
Term
115. What type of hydraulic cylinder would be found on a shaper?
 Definition
double acting
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