Workplace skills Flashcards
1
Q
Why can helicopter lifts be better than crane lifts?
A
More cost effective. If you have a lot of lifts to accomplish in one area in one day.
2
Q
What is a Trifor Winch?
A
- A.K.A Gripshot
- Hand operated cable winch.
- Uses a draw vice design
- Permits unlimited rope travel
3
Q
What is the ratio for rigging safety when there is a high probability of damage to a building or equipment?
A
10:1
4
Q
What are the recommended sling angles for lifting?
A
60 degrees
5
Q
What is a thimble used for when referring to slinging?
A
Extend the life of a sling by preventing wear on the eye of the sling as the sling is being used.
6
Q
What are slings?
A
- Hardware components
- Used to safely move loads
7
Q
What is the sheep bend knot used for?
A
- A sheep bend knot is used to join lightweight to medium weight ropes.
- Can be used with two different diameter ropes.
8
Q
What is a sheepshank knot used for?
A
-Used to shorten excessively long ropes
9
Q
What is a figure eight knot used for?
A
-A figure 8 knot is used to connect two ropes of equal diameter.
10
Q
What is a bowline knot used for?
A
- used for safety lines and for around posts
- Does not slip easy
11
Q
What must you do after you cut a nylon rope?
A
-Tape the ends or Whip the ends
Whipped means bounding the ends with fine twine
12
Q
What is the safety factor for rope?
A
- 5:1 in normal cases
- 10:1 if old and in poor condition
13
Q
How often should fibre ropes be inspected?
A
-regularly
14
Q
How much stronger are nylon ropes compared to natural ropes?
A
-2.5 times stronger than Manila ropes (natural ropes)
15
Q
What are synthetic fibre ropes made of?
A
-nylon, polyester, polypropylene, and polyethylene
16
Q
How do they make fibre ropes?
A
-By twisting (laid) or by braiding them
17
Q
What are the two different styles of rope used for rigging?
A
- Fibre rope
- Natural fibre rope
18
Q
What are the minimum width for scaffolding platforms for light duty scaffolding?
A
-500mm
19
Q
What are the minimum requirements for scaffolding platforms for heavy duty scaffolding?
A
1m
20
Q
What are the toe board regulations for scaffolding?
A
- not less than 140mm high
- space below the toe board should be no bigger than 6mm
21
Q
When are toe boards required for scaffolding?
A
-when it is possible for materials to fall more than 1.8m
22
Q
What does a guardrail system on scaffolding consist of?
A
- Guardrail post
- Mid rail post
- Guardrail
23
Q
What are the dimensions of scaffold planks?
A
- 51mm by 254mm
- can extend no less than 150mm and no more than 300mm
24
Q
The height of rolling scaffolds can not exceed ________ the smallest dimension of its base.
A
-3 times
25
What is suspended scaffold?
- Platforms supported by wire ropes
- one load line (work cage or boson chair)
- two load line (swingstage)
26
What are the advantages of modular system scaffold over tube and clamp scaffolding?
- Faster to put together
- modular scaffolding does not require the expertise that tube and clamp does.
- locations of connections are fixed.
27
How is tube and clamp scaffolding put together?
- vertical tubes (a.k.a. posts, uprights, verticals)
- horizontal tubes (a.k.a runners or ledgers)
- diagonal tubes
- couplers (foxes or swivel)
28
Why is tube and clamp scaffolding used lots?
- because of its flexibility and versatility
| - can be erected where frame style scaffolding can’t be
29
What do brackets do for scaffolding?
-brackets extend the width and length of the work ping platform along the ends and the sides of the scaffold.
30
What do cross braces do for scaffolding?
-Provide lateral support and rigidity
31
What are the most common widths and lengths for scaffolding?
Width: 3’ and 5’
Length: 5’ and 6’6”
32
What are the five different scaffold systems typically used in our industry?
- Frame scaffolds
- Free standing or rolling
- Tube and clamp
- Modular system scaffold
- Suspended scaffold
33
What are some ladder maintenance and safety tips?
- Inspect ladder prior to use
- Check spreaders
- Keep our of UV exposure
- Keep our of climatic conditions when stored
34
Can a wood or stepladder be painted?
-only with a transparent protective coating. Paint hides defects.
35
What are A-Frame ladders ratio?
-6:1
36
What should an extension ladder be leaned up against a house at?
-4:1
Every 4 metres you go up vertical it should be 1 metre out horizontally.
37
What type of ladders should we use around electricity?
-Fiberglass only!
38
What all materials can a ladder be made out of?
- Fiberglass
- Aluminum
- Reinforced plastic
- Wood
39
What three things should you consider when choosing and appropriate ladder?
- Your height
- The height you want to reach
- The style of ladder
40
What steps are we not allowed to use on a ladder?
-Two top rungs
41
What is a single ladder?
- A single section
- non-extendable
- idea for constant work at a fixed height
42
What are platform ladders good for?
-providing a large standing surface that allows for more comfort while working at a fixed height.
43
What type of ladder can two people stand on?
-Double or Twin Stepladders
44
What ladders are most popular in our everyday use at work?
-Stepladders
45
What are portable work stands used for?
- drywall ladder
- steps on both sides
- can be used for sawhorses, workstands, and material supports.
46
Describe step stools.
-lightweight, sturdy, compact, handy
47
What ladders can we stand on the very top of?
- Stepstools
| - Portable work stands
48
What type of thickness gauges do we use?
- US standard for ferrous
| - American Standard (Brown and sharpe) for non-ferrous
49
What is lube/grease used for on a power vice?
-Cooling!
50
What is a burring machine used for?
-To form and narrow edge on a round disk
51
What are bar folders used for?
- to fold edges, seams and hems up to 1 1/4 wide
| - 22 gauge capacity
52
What are the parts of a hand brake?
- Top leaf
- Bottom leaf
- Nose bar
- Bottom bar
- Insert Bar
- Angle bar
- Bending leaf
53
What is a universal forming machine used for?
- doming
- punching
- cutting
- nibbling
- flanging
54
What is the capacity rating for Double cutting snips? And what are they commonly used for?
- up to 20 gauge
| - cutting light gauge pipe
55
What three sets are available for teeth on a hack saw blade?
- Alternate
- Wave
- Raker
56
What are the pets of a ball peen hammer?
- Peen
- Ball
- Post
- Eye
- Handle
- Face
57
What is a bumping hammer commonly used for?
-to shape and remove dents from sheet metal
58
What all cuts do we have for a file?
- Curved Tooth
- Double Cut
- Single Cut
59
What are hand groomers used for?
-To lock in place and offset a groove seam
They range from 1/8 to 9/16
60
What is the max cutting capacity of bulldog aviation snips?
-16 gauge metal
Bulldog snips have shorter stronger jowls than normal aviation snips
61
What are offset aviation snips used for?
-keeping the material from the users hands and also from the blade.
62
How thick of metal fan aviation snips cut?
-up to 18 gauge
63
What is a blow horn stake used for?
-To form conical projects
64
What are vernier callipers used for?
- To measure ID, OD and depths
| - Very versatile measuring tools
65
What are micrometers used for?
-micrometers are used to measure very small distances
66
What are chalk lines used for?
-To mark long and straight lines
67
What is a protractor used for?
-To measure various angles between 0-180 degrees
68
What are Scriver’s used for?
-to make parrellel lines to the edge of the sheet when laying out patterns.
69
What are trammel points used for?
-Used to scribe long arcs or circles.
70
What are dividers used for?
- to scribe arcs or circles, divide lines, circles and arcs into equal parts
- also used to transfer line lengths.
71
How thick are picket tapes generally?
-1/4 to 3/8
Also known as pewee tapes.
72
What is a contour band saw mainly used for?
- cutting complex shapes in various materials.
| - shaping metal
73
What is a noyes groover used for?
-to finish groove seams of various sizes.
74
What are the three main parts of a drill bit?
- Body
- Shank
- Point
75
Describe a conductor stake!
| What’s it used for?
Two long cylindrical arms each with different diameters.
Used for forming, riveting, and completeing groove seams on small cylindrical objects.
76
What is a beakerhorn stake used for? How does it compare to the blow horn?
- Forming comical projects not suitable for the blow horn stake
- Longer and narrower on the beak end than a blow horn stake.
77
What two categories do they have for rotary machines?
- Throatless
| - Deepthroat
78
What are the three cardinal rules of tool maintenance?
- Clean
- Oil
- Replace
79
What are the most common threading applications?
- National Pipe Thread (NPT)
| - American Standard Pipe Thread (ASPT)
80
What are pipe readers used for?
-To remove internal burrs.
81
What is the difference between single wheel cutters and multi wheel cutters?
Single wheel cutters have one wheel and 2 rollers.
Multi Wheel cutters have 3 + wheels. And they force the burr to the outside and also to the inside.
82
What metal gauge can specially hardened snips cut? What types of metal are these snips commonly used for?
- 18gauge steel
| - Stainless steel.
83
What types of pliers do we have?
- Diagonal Cutting
- Needlenose
- Slip joint
- locking pliers
- wire stripping
- groove joint pliers (channel locks)
- locking c-clamp
- end cutting
- locking needle nose
84
What are the differences between Phillips tip screwdrivers and Posidrive Tip Screwdrivers?
-Phillips are for flat Phillips screws
(#0,1,2,3,4)
-Posidrive are for raises head screws (#1,2,3,4)
85
What types of material do mallets come in?
-Rubber, Nylon, Rawhide, copper, brass, wood. Most common being hickory.
86
What does TPI stand for when we talk about hacksaws? What choices do we have for TPI on a blade?
- Teeth per inch
| - 14,18,24,32
87
How deep do hand notchers notch?
-they make a v notch to a depth of 3/4 of an inch.
88
What are combination squares used for?
-to check and develop 45 and 90 degree angles.
89
What do Steel squares do?
-check and develop 90 degree angles and measure lengths.
90
What is a circumference ruler used for?
- making straight edges as well as curved lines.
- to find circumference
- scribing metal
91
What is the difference between straight snips and duckbill snips?
- Straight snips have cutting blades with a straight face.
| - duckbill snips have a cutting blade face that curves away from cutting edge.
92
Can you replace the blades on a set of lightweight aluminum snips?
- yes, they are easily removed and replaced.
93
What are hacksaw blades made of?
-High speed steel or a tungsten alloy.
94
What degree should chisels be sharpened to? How far down the chisel do we sharpen?
- 60degrees
| - we sharpen 1/32 down the tip.
95
How big of a punch can the portable hand punch make? What’s another name for the portable hand punch?
- Whitney Punch
| - 1/16 to 9/32
96
What is a snap lock punch used for?
-Joining two light gauge metals together
97
What is the included angle of a centre punch?
-90 degrees
98
What is the point of a prick punch ground to?
-30degrees
99
What can a ball peen hammer be used for?
- Used for chiseling and punching.
100
What type of face does a riveting hammer have?
-riveting = round face.
101
What type of face does a setting hammer have?
-Setting = Square
102
How are pliers sized?
-by the overall length of the plier.
