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Millwright Level 1 > Tools > Flashcards

Tools Flashcards

Measuring tools, comparison tools, layout tools, hand tools, power tools

1
Q

What is the accuracy of a steel rule?

A

1/64

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2
Q

What is the accuracy of Vernier calipers?

A

0.001” or 0.02mm

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3
Q

The spindle, thimble, sleeve, and anvil are parts of what?

A

Micrometer caliper

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4
Q

The sleeve of a micrometer has a line along its axis which acts as a what?

A

Datum

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5
Q

In a metric micrometer the spindle has a thread pitch of ____ to a lead of ____?

A

0.5mm and 0.5mm

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6
Q

Metric and imperial micrometers are available in increments of what?

A

25mm ranges

Increments of one inch

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7
Q

Imperial micrometer spindle threads have a pitch of __ tpi and a lead of ____?

A

40 tpi and lead of 0.025”

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8
Q

What is the accuracy of a micrometer with a vernier scale?

A

0.0001” or 0.002mm

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9
Q

What are used to measure movements such as the run out of a shaft or to compare parts against each other?

A

Dial indicators

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10
Q

The continuous-reading dial indicator is often used to measure what?

A

The run-out of shafts and other rotary parts

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11
Q

The back-plunger dial indicator is used to what?

A

Align and set up parts of equipment

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12
Q

What are used to measure the amount of clearance between parts?

A

Feeler gauges

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13
Q

What calipers are used to duplicate the size of shaft and bores?

A

Spring calipers

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14
Q

What are used to mark layout lines on the surface of the workpiece?

A

Scribers

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15
Q

What are used to lay out straight lines, and check for surface flatness and alignment?

A

Straightedges

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16
Q

What are used to scribe arcs and circles and transfer measurements?

A

Spring dividers

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17
Q

When are trammels used?

A

When spring dividers aren’t long enough

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18
Q

What calipers are used to layout lines parallel to an edge and find the centre of round or irregular shaped objects?

A

Hermaphrodite calipers

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19
Q

The combination set consists of how many parts?

A

4 - steel rule, square head, protractor head and centre head

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20
Q

The accuracy of a protractor head is what?

A

1 degree

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21
Q

The prick punch has an angle of what?

A

30 to 60 degrees

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22
Q

The centre punch has an angle of what?

A

90 degrees

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23
Q

The three most common types of scrapers are what?

A

Flat, triangular, and bearing

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24
Q

What are files made of?

A

Heat-treated, high carbon steel

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25
What is the order of file coarseness?
Single-cut, double-cut, bastard-cut, second-cut, and smoot-cut
26
What is it called when a files teeth are clogged?
Pinning
27
What can you apply to the file to reduce pinning?
Chalk
28
What type of filing produces a flat, smooth surface?
Draw filing
29
What are chisels made of?
Hardened, tempered, high-carbon steel
30
What are the four common types of chisels?
Flat cold, cape, round nose, and diamond point
31
The included angle of a flat cold chisel is?
70 degrees
32
What type of chisel cuts narrow, square-bottomed grooves such as keyways?
Cape chisels
33
What type of chisel is used to finish off square corners?
Diamond chisels
34
What consists of a frame, handle, blade, and blade tensioning device?
Hacksaws
35
All-hard backsaw blades are made of what?
Fully hardened, high speed steel
36
Flexible blades are either ___ or ___?
Carbon or bi-metal
37
The teeth of a hacksaw blade have a set to them to create what?
A kerf
38
The coarseness of a blade is measured how?
The number of teeth per inch (tpi)
39
The pitch of hacksaw teeth can be calculated how?
1 divided by tpi
40
When cutting thick materials what type of blade should you use?
A coarse blade to allow for chip clearance
41
When cutting thin material what type of blade should be used?
A fine pitch blade
42
When hacksawing how many teeth must be in contact with the material?
At least 2-3
43
When hacksawing how many strokes per minute should you do?
40 to 60
44
The two types of twist drills in the shop are?
Carbide and HSS
45
For general purpose drilling the drill point angle is?
118 degrees
46
For drilling hard materials the drill point angle is?
150 degrees
47
For drilling soft materials the drill point angle is?
90 degrees
48
The lip clearance behind the cutting edge of a drill is?
8 to 12 degrees
49
The chisel edge angle of a drill is?
135 degrees
50
Sharpen a twist drill with a grinder with the angle of?
59 degrees
51
Flattening the cutting edge to prevent the drill from biting is called?
Brassing off
52
Reamers are used for what?
Creating an accurate sized hole
53
The maximum amount of material left for hand reaming is?
0.005"
54
Tapered reamers are used to create what?
Tapered holes
55
What are end mills used for?
Cutting narrow slots or grooves
56
The speed with which the saw teeth and cut object move past each other is called what?
The cutting speed
57
The cutting speed for carbide is approximately how much faster than HSS?
2.5 times
58
What is the formula for cutting speed?
rpm imperial = cutting speed x4/diameter of drill | rpm metric = cutting speed x 320/diameter of drill
59
What kind of drill presses are usually fixed to a bench or the floor and have a mechanical device for feeding the drill bit into the work?
Stationary drill press
60
What are right-angle drills useful for?
Drilling holes in tight places
61
What should you use when a magnetic drill press is used on a slope or overhead?
Chain it up
62
What is a portable keyseat cutter used for?
Cutting keyseats, slots and holes with an endmill
63
What are used to drive fastening devices into steel or concrete?
Powder-actuated tools

Millwright Level 1 (5 decks)

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