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AST 1 > Final Test Study > Flashcards

Final Test Study Flashcards

1
Q

HSS stands for?

A

High
Speed
Steel

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2
Q

HC stands for?

A

High carbon steel

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3
Q

Number of different drill measurements

A

4

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4
Q

Describe plug welding

A

It is melting a piece of metal welded on a broken stud to remove it

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5
Q

Cutting fluid is used for?

A 
Improve hole finish
Cools drill
Cools workpiece
Help clears chips
Permit higher speed
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6
Q

Why is drill speed so important l?

A

Prevent breakage
Prevent premature wear
Prevent damage to workpiece

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7
Q

Describe filing flats

A

When you file a broken stud to for centre punch

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8
Q

What part of the tap does most of the work?

A

Tamper or Chamfer

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9
Q

Taps are used for?

A

Cutting internal thread

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10
Q

ISO stands for?

A

International
Standards
Organization

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11
Q

Parts of a twist drill?

A

Body
Shank
Point

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12
Q

NPT can identify?

A

A pipe thread

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13
Q

NPT stands for?

A

National Pipe Thread

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14
Q

Metric taps are identified by?

A

The letter M

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15
Q

SAE stands for?

A

Society of Automotive Engineers

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16
Q

Three techniques for thread repair

A

Drill and tap
Plug
Insert

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17
Q

Different ways drills are measuered in

A

Numbered
Lettered
Metric
Fractional

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18
Q

The ISO flare is measured in what unit?

A

Always metric

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19
Q

Three types of taps, in order of use

A

Taper
Plug
Bottoming

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20
Q

ILSAC stands for?

A 
International
Lubricant 
Standardization
Approval 
Committee
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21
Q

Name the methods of identifying drill size

A

Read the identifying marks
Use Drill gauge
Measure the drill margins (diameter)

22
Q

Formula for finding Tap Size

A

Tap Drill Size equals Bolt Size minus Pitch

23
Q

Describe the process of Upsetting

A

Apply heat, to elongate the bolt.
Wait for the bolt to cool
The bolt will be longer, and smaller in diameter

24
Q

A stud is broken off below the surface of a work-piece, what method can you use for removal?

A

Plug welding method

25
Q

Name the flares associated with ISO and SAE

A

ISO bubble flare; SAE double flare

26
Q

What is scale when referring to measurement?

A

How small the tool can measure

smallest measurement on the tool

27
Q

Feeler Blades can measure?

A

Clearances between components

28
Q

Stepped Feeler Blades measure?

A

Specific clearances

29
Q

A dial indicator measures through which component?

A

The plunger

30
Q

A Dial indicator has three different uses, name them

A

Can measure
Runout
Endplay
Lash

31
Q

What is Lash?

A

Clearance between moving parts

32
Q

The Revolutions Counter is in what place of the decimal?

A

The tenths

0.1

33
Q

Imperial and Metric Calipers has three uses, name them

A

Outside dimensions
Inside dimensions
Depths

34
Q

Most common Calipers?

A

Digital and Dial Calipers

35
Q

Everytime the screw turns on and Imperial Micrometer is?

A

Based on the thread pitch

example is: 0.025

36
Q

The process to convert a fraction into a decimal?

A

Division.

Divide top number by bottom number

37
Q

What number do you start with when converting a decimal into a fraction?

A

Start with 64

38
Q

Name four different application for an outside micrometer

A

Ware
Clearance
Engine Parts
Brake rotors

39
Q

A general rule for a technician, when selecting a tool to measure?

A

Generally: If you have the capability, use the most precise tool

40
Q

Every time the screw turns one rotation on a metric micrometer, how much does the spindle move?

A

0.50 mm

41
Q

What do we have to find in order to measure a round pieces precisely?

A

We want to find the diameter, which will be the largest part

42
Q

What is Parallax Error?

A

When the viewers eye is not directly above the measuring tool. Giving a false reading

43
Q

The first steps when about to measure with any tool?

A

Check for wear, then check for zero setting

44
Q

Why must me always leave a little space when storing the tool?

A

The metal will heat up, expanding and cause premature wear on the tool

45
Q

What are transfer gauges, and name the two most common in the industry?

A

A tool with no graduation marks, meaning you would need another tool to take the actual measurement.

Examples are Small-Hole Gauges and Telescoping gauges

46
Q

Plastigage is used for?

A

Measuring clearances, as it flattens out

47
Q

Torque equals?

A

Lever length times force

48
Q

What is an option to increase the limits of a torque wrench?

A

A torque multiplier

49
Q

A lack of proper torquing can cause?

A

Premature wear or failure

50
Q

What happens if you over tighten a Micrometer?

A

It will distort the frame, and may damage the item

AST 1 (2 decks)

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