問題一覧
1
when drafting, you will get the best results on the original equipment for
Comfort
2
This is one type of eraser for use for drafting
Art gum
3
The purpose of an engineers or architect scale is for you to
Reduce or enlarge drawings based on scale
4
Which tool is used to transfer measurements and distances
A divider
5
This type of drawing line defines the in limits of an edge or surface to which a measurement applies
Extension
6
these types of represents the axis of symmetrical parts, and serve as extension lines for holes and other features
Centerlines
7
you are going to draw an object and realize that even though it is uniform, and length it is too long for the print to correct this issue select
A brake line
8
this type of dimensioning system uses distances, size and locations taken from parallel or perpendicular reference lines
Rectangular dimensioning
9
One rule to remember when dimensioning drives is that they were all read from the
Bottom
10
when dimensioning a series of concentric circles, always read the dimensions using this method
Same direction
11
when you show counter dimensions, worship the size and location of the hose be shown
Where the contours views appear
12
A beveled, external edge and contour dimensioning is also known as
Chamfer
13
The rule for using a dimension tolerance with a two place X.XX decimal is
0.010 inch
14
for angular dimensions were no tolerance is given hold the angle to the nearest
Half degree
15
there are limits to tolerance accuracy, when dimensioning .unilateral tolerance means that
Part tolerance is in One Direction
16
You attach a tail to the welding symbol, reference line to provide information about the
Welding process
17
Waring, give all necessary information for a print specifically welding symbols give the
Type of weld and welding contour
18
which computer, aided design, CAD line tool creates lines that are parallel to existing lines
offset lines
19
This computer added it design CAD is used to delete unwanted geometry
Clip
20
Which type of blueprint notes applies directly to a particular portion of the drawing
Local notes
21
When working with a drawing that has overall dimensions, but no specific dimensions you are probably using
An assembly drawing
22
what results from using heavy coating of layout dye on your machine workout piece
ragged and uneven lines
23
when performing player operations in the welding shop you will select a
soapstone for rough work
24
After performing a welding or cutting operation layout
Use soapstone to mark it with the time and the word hot
25
When trying to perform a layout operation on a round stock to keep it from rolling, use a
A V block
26
When performing layout operation with a scribe make sure you are
Using only one thin line per mark to prevent blurring
27
All of these accessories are used with a steel rule except the
Indexing clamp
28
Designing and manufacturing , non-ferrous tool material include
tungsten in carbide form
29
Which is a defect, found in tools, manufactured with low-grade steel
Uneven, tensile strength
30
This statement is correct, regarding jig and fixture guides
a jig guides the cutting tool and a fixture does not
31
Will you position locating points on a jig or fixture place them so that each
Workpiece is held in the same position
32
Which type of jig is least expensive and use for only limited production
Template jig
33
Which type of fixture helps you to machine your part for short runs or low production jobs
aluminum auxiliary vice jaws
34
This is the most versatile type of fixture construction
Built up construction
35
when using locating principles construct jigs and fixtures
Locate with three points on the base to keep the part from rocking
36
Which dime manufacturing process produces metals to farm shapes or relief markings
Coining
37
which type of fit is used for perm mining movement between matting parts, and a running or a sliding fit
Clarence
38
this type of fit is used for assembling and disassembling stationary parts is locational
Interference
39
Which type of fit would you select to assemble a flywheel and ring gear?
FN5
40
When using liquid nitrogen for a shrink fit skin content with the liquid nitrogen will cause
Cause, severe cold burns
41
The main purpose of using lubricants and shot machinery is to
reduce friction between moving parts
42
Which type of operation must a machine overcome to keep a surface in motion
Static
43
The tendency of an oil to resist flow is known as is
Viscosity
44
Cutting fluid extracted from petroleum are classified as
Mineral oils
45
when disadvantage of using organic emulsions in cutting fluids is they
Become rancid overtime
46
Which type of cutting fluid would be best to use in high temperature grinding operation
Synthetic
47
in a machining operation with magnetism MG casting work piece you would select a cutting oil that
Does not contain water
48
this is the purpose of flexible air located on the head of a counter machine
Keep layout lines free from chips
49
When shifting between the high and low ranges on a contour machine, you must always reduce the transmission speed to below
50 feet per minute
50
Which part of a contour machine saw band provides ship clearance and it helps remove ships from the saw
Gullet
51
What is known as a set of counter machines saw band
Total amount of teeth are offset
52
You set the gap on the contour machine saw guys by using
A gage to set the guides
53
when using the contour machine, this causes excessive wear on the idler and drive wheels
Tension
54
on a contour machine, a heavy feed pressure is best when selling
metals that do not dissipate heat rapidly
55
which type of band would you use for straight sawing operations on a contour machine?
widest available
56
you must consider these factors when selecting a saw band for contour sawing
smallest radius to be cut and material thickness
57
To perform contour machine, angular saw operations mount the lower, saw guides in the keeper blocks lower set of holes when the table is tilted more than
20°
58
How are the V belts adjusted on the contour machine? Drive motors?
Increase the counter balance
59
Rotating the switch cut off adjustment on a contour machine saw band welder, affects the
Weld timing
60
Compared to a contour machine cut off equipment is different because you cannot
Cut intricate shapes
61
to prevent Coolidge stoppage during cut off equipment, operation
Clean the coolant filter
62
One difference between contour machines saw, bands, and horizontal cut off, saw bands is the
gage is thicker on the cut off saw bands
63
if you notice the saw band on the horizontal cut off machine, it’s not cutting parallel to the workpiece axis, correct the problem by
Adjusting the saw band guides
64
To achieve a vertical when operating a horizontal band saw
Adjust the band guides as close as possible
65
The holddowns or clamps on a universal, punching and sharing machine
Prevent material kickback
66
When making multiple notching, because on the universal punching and sharing machine, the blaze should be lubricated
Every 10 to 15 cuts
67
One advantage of using a manufactured blasting abrasive instead of natural abrasives, is they
Fracture at a controlled rate
68
This is an excellent blasting, abrasive medium for paint removal
Plastic particles
69
if you must remove a carbon scale deposit from an intricate titanium, casting, selectcthese type of blasting abrasives
Organic abrasive
70
You must replace the nozzle on a media blasting machine when
The outlet is worn to one 1 1/2 times its original size
71
which factor is determine the nozzle pressure when performing abrasive blasting
Medium type and material thickness
72
why do you mask components before a abrasive blasting
Prevent media penetration
73
when setting strap clamps during a drilling operation, you must ensure the
clamps do not interfere with the cutting tools reaching the surface
74
When clamping a workpiece in a drill press vice while performing drilling operations, you must support it on parallels to
keep from drilling holes
75
if you are performing a drilling operation on something cylindrical, such as a piece of round stock
use V blocks to support the workpiece
76
How do you keep the work piece from climbing up the drillbit as an emerges through the work during drilling operations?
Reduce the feed pressure
77
When performing a drilling operation, select a pilot drill with a diameter that is
Slightly larger than the web thickness of the next drill use
78
which tool would you select to precisely transfer holes for drilling?
transfer punch
79
To keep chips from becoming dangerously long during a drilling operation
Interrupt the feed regularly
80
what should you ensure the shop location allows when installing a radio press to perform drilling operations
Arm is able to achieve a 360° swing
81
before you raise or lower a radio press that has been idle for a couple days
clean the column and apply a fresh oily film
82
How can you keep from marring the surface when press fitting a work piece while using the hydraulic arbor press?
Place a soft metal shim between the ram and work
83
To prevent seizing between mated parts, being forced fitted by a hydraulic arbor press
Lubricate the parts
84
The only way to accurately determine the amount of pressure exerted by hydraulic arbor press is to
Consult the operators manual
85
you see the letter V designated in grinding wheel marking a 60 – LS – V11 this is what is indicated about the wheel
Bond type
86
This is the most common type of abrasive you will use in a grinding wheel
Aluminum oxide
87
The main difference in using silicon, carbide and aluminum oxide abrasive is silicon carbide abrasives are
Harder and fracture more easily than aluminum oxide
88
To grind hard brittle materials and obtain a fine finish select a grinding wheel that has
A fine grain size
89
How do you inspect a grinding wheel for cracks after their selection for an operation?
Type it with a non-metallic screwdriver handle
90
The purpose of dressing, a grinding wheel is to
Improving cutting action
91
this is the most efficient type of grinding will dresser for truing wheels used to perform precision grinding
Diamond dresser
92
how are all grinding wheels stored?
In a dry place
93
when grinding drill points never raise the shank higher than a cutting edge while grinding or you will
Grind a negative relief angle on the cutting edge
94
On a pedestal grinder this maximum distance must be maintained between the grinding wheel face and tool rest
1/8 inch
95
when a belt sender is used, sharp corners are prevented from tearing the belt by
Bringing them in contact with the belt lightly
96
this part of the belt sander provides a large surface behind the sanding belt for a flat grinding
back up planten
97
This is the most common abrasive water jet in use today
Garnet
98
generally, when a water jet is programmed for cutting thicker and harder materials, the feed rate will
Be slower
99
prevent uneven wear on water jet machines mixing tube by
Rotating the mixing tube regularly
100
What should be done if the high-pressure fittings on a water jump machine are not getting a good seal
Check for scratches, a bend or debris