190101b - Climbing, Lifting, Rigging, and Hoisting

When is a fall protection plan is required?

• where workers could fall 3 or more metres and are not protected by guardrails

• if you could fall less than 3 metres, but there is an unusual possibility of injury (working above water, machinery, etc.)

When working on a ladder, you must never step on or work from the top __ rungs.

2

What is the proper angle to set up an extension ladder?

For every 4ft of vertical height, the base of the ladder goes 1ft from the wall (optimum climbing angle of 75 degrees).

When in position against a structure, how much should the ladder protrude above the intended landing point?

1 metre

A scaffold must be designed and constructed to support at least ____ times the load that may be imposed on it.

4

How much can light and heavy duty scaffolding support?

Light - up to 122 kg/m2

Heavy - 122-367 kg/m2

For free standing scaffolds, the scaffold must not be taller than ___ times its smallest dimension in width.

3

What are the intervals for anchoring a scaffold with tiebacks or guywires?

4.6m vertical and 6.4m horizontal

Guardrails must be installed on scaffolding at what height?

When the work platform is 3 or more metres above the ground

What are the requirements regarding scaffolding toeboards?

• must be a minimum of 140mm in height

• must be installed when workers are below or adjacent to the platform

• must be installed when the platform is 3.5m or more from the ground

The material used in the construction of wood scaffolds should be:

Close grained S4S material (wood that has tight, dense growth rings and has been planed smooth on all four primary sides)

Define rigging

Hardware components used to attach your load to the hoisting or lifting device

Define “breaking strength” of rigging hardware.

The minimum load required to break that component.

What are wire slings made of?

Carbon steel or stainless steel laid around an independent wire rope core.

What is an eye and eye sling?

single length of wire rope with an eye formed on either end of it