Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Line A: Safety, Hand, and Power Tools > Line A Exam: Hand Tools and Power Equipment > Flashcards

Line A Exam: Hand Tools and Power Equipment Flashcards

1
Q

When using a file, it is important to note that the surface of the project should be free of what?

A

The surface should be free of water and oil.

Oil impedes the cutting action.
Water causes corrosion of the teeth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How should a file be stored?

A

A file should be hung on a rack or wrapped in cloth (or another soft protector) to maintain sharpness.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Describe “pinning”

A

“Pinning” is when a file cuts ahead creates metal chips that get stuck in the teeth of a file. These metal chips can be removed using a “file card”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a power nibbler?

A

A power nibbler is an electric cutting tool designed to cut light gauge material. They come in different sizes and weight and are extensively used in sheet metal work and medium fabrication.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the range of sizes an electric nibbler cuts carbon steel?

A

10 gauge (3.5 mm) to 10 mm.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the range of sizes an electric nibbler cuts stainless steel?

A

12 gauge (2.5 mm) to 6mm.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the usual range of sizes a pneumatic nibbler cuts carbon steel?

A

18 gauge (1.2 mm) to 5mm.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the usual range of sizes a pneumatic nibbler cuts stainless steel?

A

20 gauge (0.09mm) to 10 gauge (3.5mm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is a needle-gun scaler used for?

A

Used to clear rust, paint, mill scale, slag, and silica deposits.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the rate a needle-gun scaler runs at?

A

4,000 to 6,000 times per minute

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does it mean when a needle-gun scaler is pneumatic?

A

Pneumatic means the gun is powered using forced air. These types of gun are the most common where as electric are less.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is an advantage of a pneumatic needle-gun scaler compared to other scaling devices?

A

An advantage of a pneumatic needle-guns ability to adjust itself to different contours.

(This means it can easily shape to fit different surfaces.

ie. bumpy, curved, jagged, etc.)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the first step to do before using a needle-gun scaler on a workpiece?

A

To be aware of the base metal type and preform a sample descaling on similar scrap before use.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is one step to prolong life of a needle-gun scaler?

A

Applying tool oil to reduce friction and excessive heat.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Describe what “sounding a wheel” means.

A

Before mounting a grinding wheel it must be tested for cracks. Suspending the wheel loosely on a rod of some type and gently taping the wheel with a hard blunt object.

If the sound of the wheel when hit is a high pitched ring it is to standard. If the wheel makes a dull clunk the wheel may be cracked and should not be used.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Describe a drift pin.

A

A drift pin is a tool used to align holes in two pieces of metal or other materials so that they can be fastened together properly.

You use a drift pin by inserting its tapered end into the holes and gently tapping it until the holes are perfectly aligned. This makes it much easier to put the fastener (such as a screw) through both pieces.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Describe what dies are.

A

Dies are used to cut external threads. The cutting teeth of the die is tapered to start with shallow and then gradually deeper cuts, until a complete thread is formed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How many types of common die are there?

A

Two types.

Straight thread

Pipe thread

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the tolerance of a bolt or rod diameter for a desired thread?

A

+0.0mm, -0.25mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the holder for dies called?

A

A die handle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the proper safety procedures for stationary saws.

A

Always wear eye and ear protection
Do not wear gloves or loose clothing
Always be sure machine is clean and well managed
Be sure stock is supported on both ends
Be sure to use correct speeds and feeds
Be sure to use the correct blade. ie tooth form and pitch.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Cutting fluids used to cool the kerf and edge of a blade is mixes of what ratio?

A

40:1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What are the functions of cutting fluid?

A

To conduct heat from the cutting edges
To lubricate the kerf + edge of blade to reduce blade wear.
To flush out chips from cutting.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What are power hacksaws primarily used to cut?

A

They are used to cut heavy sections or repetitive production pieces.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

How many strokes per minute does a power hacksaw generally do?

A

60 - 90 strokers per minute.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

How many types of band saws are there?

A

Three:

Vertical
Horizontal
handheld for portable use

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What is the maximum width a common band saw can hold?

A

Approx. 400 mm (16 inches)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What is the maximum thickness a common band saw can hold?

A

Approx. 300 mm (12 inches)

29
Q

What sort of features can bandsaws have that make them versatile and different from other forms of cutting?

A

-Auto-feeding capabilities for repeated cuts.
-Additional hydraulic holding rams so large stacks of material can be cut at one time
-A main head that can swivel side to side over 45 degrees in one or both direction
-A head that can be lifted so the saw can be used in horizontal and vertical positions.

Cutting with a bandsaw is slower than most other forms of cutting (ie. oxy-fuel, disk saws, and sheers), but are versatile and can cut most piping, tubing, and extrusions.

30
Q

What types of cuts can a vertical band saw make?

A

Straight or curved.

31
Q

What are portable band saws commonly used for?

A

Cutting pipes or steel shapes to length in the field

32
Q

What are things to consider when selecting a band saw blade?

A

Material to be cut
size of parts
amount to be done.

33
Q

What three types of materials are used for band saw blades?

A

Carbon steel
Bi-metal
Carbide tipped.

34
Q

What are some characteristics of carbon steel band-saw blades?

A

They are the least expensive out of the three.
They are for general use only.
They dull quickly and cannot cut hard materials.

35
Q

What are some characteristics of bi-metal band-saw blades?

A

They have teeth tips made of high speed steel for increased hardness, heat, and wear resistance.
They are more expensive than carbon steel but are cheaper than carbide.
They have much longer usage.

36
Q

What are some characteristics of carbide tipped band-saw blades?

A

They are the highest performing blades out of the three.
They are the most expensive.

37
Q

What is the minimum number of teeth that should be in contact with the part to be cut at all times?

A

Two to three teeth at all times.

38
Q

What are the two most common types of teeth used for bandsaw blades?

A

Regular - Used for cutting stainless steel, steel, and can be used for aluminum.

Hook. - Recommended for softer materials such as aluminum because of the shape at the base of the teeth allow for chips to clear the blade.

39
Q

What is the difference in speed when cutting aluminum vs cutting steel?

A

Cutting aluminum is much faster than cutting steel.

40
Q

What is the purpose of a centre punch?

A

Centre punches are used to locate the centre point of a hole to mark where to drill.

41
Q

How many types of drill bits are there?

A

Straight shank twist drill
Tapered shank twist drill
Annular drill

42
Q

Describe a straight shank twist drill.

A

A straight shank twist drill is used in portable lighter duty applications. They come in metric or US customary sizes. They have straight cylindrical sides (hence the name) and two spiral grooves to clear chips created during the cutting.

43
Q

Describe a tapered shank twist drill.

A

It has two main parts: the cutting part (the twist bit) and the shank (the part that goes into the drill). The twist bit has spiral grooves that help remove material as it drills into the surface. The shank is tapered, meaning it gets narrower towards the end. The tapered end is made to fit neatly into a matching cone-shaped hole that widens to accommodate the tapered end of the drill bit.

44
Q

Describe what the tang is when referring to a tapered shank drill bit.

A

The tang is the top flattened part of the drill bit of the shank that fits into a slot in the drill press.

45
Q

Describe what a drift is when referring to a tapered shank drill bit.

A

Because the drill bit has a tang (top bit of bit that fits into a notch) it needs a special “key” or tang to fit into a slot with the rounded edge up and is then hit with a hammer to unlock the drill bit.

46
Q

Describe an annular drill bit.

A

An annular drill it is hollow, and often used with magnetic base drills to make large holes. Instead of drilling out all the material in the hole, it cuts only around the edge, creating a ring-shaped cut.

47
Q

At what size are annular drills more efficient than twist drills?

A

When cutting holes larger than 15 mm (5/8”).

48
Q

Describe the plunger centre of an annular drill bit.

A

These bits have a plunger style centre that gets in contact with a centre punch mark to keep it centred, as well as ejects the newly created plug by the bit so it doesn’t remain inside the end of the drill bit.

49
Q

When referring to a grinding wheel, describe dressing.

A

Dressing is the process of removing embedded metal particles that form a flat surface on a grinding wheel. There are two types of tools for this, a disc and a diamond.

50
Q

What is it called when metal particles have embedded in a grinding disk?

A

This is known as loading.

51
Q

What are the four functions of an iron worker?

A

Hole punching
Angle Shearing
Bar shearing
Notching

52
Q

Describe the use for a trammel point set

A

Trammel point sets are primarily used for drawing large arcs and circles, but are also used for:

  • Measuring lengths
  • Making repeated measurements
  • Dividing a length/ line
  • Creating a 90 or 45 degree angle
  • Locating the centre of a circle
53
Q

Describe an abrasive saw.

A

Abrasive saws are actually narrow, high speed, grinder that cuts material by wearing it down. The blade decomposes during said wearing action. They are the most dangerous out of all stationary saws because as the wheel wears, fumes and particles are produces.

54
Q

How is cutting feed usually controlled.

A

Manually by the operator with a feed lever.

55
Q

What is the difference between smaller and larger abrasive saw blades?

A

Smaller blades have a spring return on the frame.
Larger blades use a counter balance arrangement.

56
Q

What information is found on hacksaw blades?

example: 1024

A

Length of blade and teeth per inch.

10 = blade length
24 = teeth per inch

57
Q

What are common things hacksaw blades are made of?

A

They are made of hard tempered steel. They can be flexible (where only the teeth are hard), or all-hard.

There is no such thing as an all purpose hacksaw.

High carbon steel - General cutting

HHS - High speed, for cutting hard material, stainless steels, and steel alloys.

Bi-metal blade - combines the advantages of high carbon and high speed steel.

58
Q

What two common lengths can hacksaw blades come in?

A

250 mm (10”) or 300 mm (12”)

58
Q

How do you properly use a hacksaw?

A

Before cutting, test the material on a file. If it cannot be filed it cannot be cut.

The cutting is all done on the forwards stroke, so relieving pressure or lifting the blade during the back stroke is recommended to prevent damaging the cutting teeth.

59
Q

If a welders chipping hammer dulls (which it most certainly will do) what can be done to redress it?

A

Taking the chipping hammer to a belt sander or bench grinder.

60
Q

Describe a chain vise.

A

A chain vise is similar to a hinged pipe vise but uses a linked chain (hence the name) to pull the pipe/ rounded material snuggly against the base using a ratchet or screw mechanism.

61
Q

What is an advantage to a chain vise compared to a pipe vise.

A

A chain vise can be used for irregular shaped materials.

62
Q

Describe how to use a dog and wedge.

A

They are used to align butt, lap, and corner joints. The dog is tacked (using the smallest tack possible) onto the work piece the wedge is then hammered into the slot on the dog until both pieces are levelled. Always be cautions when doing so as excessive force is being built into the dog and wedge which could possible result in it breaking and flying off.

63
Q

What is the difference between single and double cut files?

A

Single cuts have a single row of diagonally cut teeth and are used with light pressure in one direction (towards the tip) to create a smooth surface.

Double cuts have two row of diagonally cut teeth and are designed to cut in both directions with more pressure than single cuts. The teeth facing the tip are coarse and the ones facing the heel are less so.

64
Q

How are the size of a vise determined?

A

By the width of the gripping jaws, not how far it opens.

65
Q

When tapping a blind hole (a hole that does not pass fully through the material) what tap should be used?

A

A bottoming tap.

66
Q

Which type of tap is used for harder materials?

A

Taper

67
Q

A properly sharpened drill bit will have a lip angle of approximately what degree?

A

60 degrees.

68
Q

A properly sharpened drill bit will have a lip clearance of approximately what degree?

A

12 degrees.

Line A: Safety, Hand, and Power Tools (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions