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Carpentry > E-1 (answers) > Flashcards

E-1 (answers) Flashcards

1
Q

40 percent of those persons injured from falls have been on the job

A

Less than a year

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2
Q

Job-built ladders using 2 x 4 side rails can be made in lengths no longer than

A

16 feet

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3
Q

Metal brackets installed on ladders to hold scaffold planks are called ladder

A

Jacks

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4
Q

Most accidents involving scissor lifts are the result of falls and:

A

Electrocutions

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5
Q

Planks should extend past the bearer

A

6 to 12 inches or 150mm to 300mm

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6
Q

Screw jacks used to level scaffolds may only be extended to ____ of their length or 600 mm, whichever is less.

A

2/3

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7
Q

The all around scaffolding system uses a

A

Rosette and wedge

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8
Q

The best location for the 38 mm x 89 mm (2 x 4) guardrail is:

A

On the work platform side of the uprights

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9
Q

The correct slope for extension ladders is

A

4 up the slope to 1 horizontal

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10
Q

The horizontal load carrying members of a scaffold are called

A

Bearers

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11
Q

The horizontal members that support the bearers are called

A

Ledgers

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12
Q

The main cause of fall accidents is

A

Equipment failure

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13
Q

The main member that stiffen the scaffold are called

A

Diagonal braces

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14
Q

The maximum spacing of the cleats on a job-bullt ladder is

A

300mm or 12 inches

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15
Q

The members that incorporate stability into tube and clamp scaffolds are:

A

Face, sway and internal braces

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16
Q

The top rail of a guardrail on a scaffold must be above the working platform

A

40 to 44 inches

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17
Q

The vertical members of scaffolds are called

A

Poles/uprights

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18
Q

Training of workers in the safe erection and use of scaffolding is the responsibilities of

A

The employer

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19
Q

Tube and clamp scaffolds are made of

A

Metal tubes and adjustable clamps

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20
Q

What are the two basic structural components of a steel scaffold?

A

End frame and cross brace

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21
Q

What is required when an end frame is placed on a wooden mud sill?

A

Screw Jack

22
Q

What is the maximum amount that a 38 mm x 140 mm bearer may span when using a light duty scaffold?

A

1520 mm or 60 inches

23
Q

What is the maximum amount a floor may slope when using a rolling scaffold

A

Within 3 degrees of leveling

24
Q

What is the maximum force, applied in any direction, that the top rail of a standard scaffolding guardrall is required to resist?

A

125 pounds (556kn)

25
Q

What is the maximum gap allowed under a toe board

A

13 mm or 1/2 inch

26
Q

What is the maximum height of a free standing rolling scaffold

A

3 times its minimum base dimension

27
Q

What is the maximum slope allowed for a work platform

A

1 vertical 5 horizontal

28
Q

What is the maximum spacing allowed for the supports of scaffold planks on to be used by a bricklayer?

A

7 feet

29
Q

What is the maximum span for a 38 mm x 235 mm No. 2 and Better plank used on a platform?

A

1.8 m

30
Q

What is the maximum span for a 38 mm x 235 mm No. 2 and Better plank used on a ramp?

A

1.8 m

31
Q

What is the max width of opening allowed in a work platform

A

1 plank width

32
Q

What is the minimum size of material permitted for cleats on job-built ladders feet?

A

1x3 or 19 x 75 mm

33
Q

What is the nearest safe distance you are to maintain from even the lowest voltage
“high-tension” power line when rigging?

A

3 m

34
Q

What might have to be considered other than, vertical and horizontal loading for workers and material when erecting scaffolding?

A

Wind loads

35
Q

What must be used to level a scoffold on uneven terrain

A

Screw jacks

36
Q

When a job-built scaffold is to be used by a carpenter applying siding, the max spacing allowed for uprights and bearers is:

A

10 feet or 3 m

37
Q

Where would you find information on the requirements for temporary ramps, and stairs?

A

OH&S regulations

38
Q

Which ladder steps or rungs must you never stand on?

A

The top 2

39
Q

Wooden ladders should never be protected with

A

Paint

40
Q

A harness, lanyard, lifeline, rope grab, and anchor are all parts of a

A

Personal fall protection system

41
Q

A middle rail is to be

A

2x4

42
Q

A scaffold that is attached to the building on one side and is supported by poles on the other side is called

A

Single pole scaffold

43
Q

A worker operating a scissor lift is not required to have _______ if operating on
substantially level surface with all manufacturer’s guardrails and chains in place

A

A fall arrest system

44
Q

All scaffold planks must be inspected

A

Every time they are put into use

45
Q

An extension ladder must extend above the top support by at least

A

3 feet

46
Q

At what height does a scaffold require a guard rail

A

10 feet

47
Q

How deep can you notch the side rails of a job built ladder

A

Notching not allowed

48
Q

If workers are to remain on a rolling scaffold while it is being moved by others what is the maximum allowed height?

A

2 times the min base dimension

49
Q

Job-built ladders must have a minimum distance between the side-rails no less than

A

15 inches

50
Q

Which rope is preferred for lifelines to cushion the fall of a worker?

A

A twisted synthetic rope

Carpentry (6 decks)

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