E-1 (answers)

Question 1

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

Answer 1

Less than a year

Question 2

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

Answer 2

16 feet

Question 3

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

Answer 3

Jacks

Question 4

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

Answer 4

Electrocutions

Question 5

Planks should extend past the bearer

Answer 5

6 to 12 inches or 150mm to 300mm

Question 6

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

Answer 6

2/3

Question 7

The all around scaffolding system uses a

Answer 7

Rosette and wedge

Question 8

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

Answer 8

On the work platform side of the uprights

Question 9

The correct slope for extension ladders is

Answer 9

4 up the slope to 1 horizontal

Question 10

The horizontal load carrying members of a scaffold are called

Answer 10

Bearers

Question 11

The horizontal members that support the bearers are called

Answer 11

Ledgers

Question 12

The main cause of fall accidents is

Answer 12

Equipment failure

Question 13

The main member that stiffen the scaffold are called

Answer 13

Diagonal braces

Question 14

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

Answer 14

300mm or 12 inches

Question 15

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

Answer 15

Face, sway and internal braces

Question 16

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

Answer 16

40 to 44 inches

Question 17

The vertical members of scaffolds are called

Answer 17

Poles/uprights

Question 18

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

Answer 18

The employer

Question 19

Tube and clamp scaffolds are made of

Answer 19

Metal tubes and adjustable clamps

Question 20

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

Answer 20

End frame and cross brace

Question 21

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

Answer 21

Screw Jack

Question 22

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

Answer 22

1520 mm or 60 inches

Question 23

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

Answer 23

Within 3 degrees of leveling

Question 24

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

Answer 24

125 pounds (556kn)

Question 25

What is the maximum gap allowed under a toe board

Answer 25

13 mm or 1/2 inch

Question 26

What is the maximum height of a free standing rolling scaffold

Answer 26

3 times its minimum base dimension

Question 27

What is the maximum slope allowed for a work platform

Answer 27

1 vertical 5 horizontal

Question 28

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

Answer 28

7 feet

Question 29

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

Answer 29

1.8 m

Question 30

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

Answer 30

1.8 m

Question 31

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

Answer 31

1 plank width

Question 32

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

Answer 32

1x3 or 19 x 75 mm

Question 33

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

Answer 33

3 m

Question 34

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

Answer 34

Wind loads

Question 35

What must be used to level a scoffold on uneven terrain

Answer 35

Screw jacks

Question 36

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

Answer 36

10 feet or 3 m

Question 37

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

Answer 37

OH&S regulations

Question 38

Which ladder steps or rungs must you never stand on?

Answer 38

The top 2

Question 39

Wooden ladders should never be protected with

Answer 39

Paint

Question 40

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

Answer 40

Personal fall protection system

Question 41

A middle rail is to be

Answer 41

2x4

Question 42

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

Answer 42

Single pole scaffold

Question 43

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

Answer 43

A fall arrest system

Question 44

All scaffold planks must be inspected

Answer 44

Every time they are put into use

Question 45

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

Answer 45

3 feet

Question 46

At what height does a scaffold require a guard rail

Answer 46

10 feet

Question 47

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

Answer 47

Notching not allowed

Question 48

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

Answer 48

2 times the min base dimension

Question 49

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

Answer 49

15 inches

Question 50

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

Answer 50

A twisted synthetic rope