Stairs & Ladders

A fixed ladder 24 ft or longer must be equipped with ____

- a ladder safety device - self-retracting lifelines with rest platforms every 100 ft or less

position of a non self supporting ladder?

at an angle where the horizontal distance from the top support to the foot of the ladder is 1/4 the working length

How many points of contact with the ladder should a worker maintain at all times?

at least three

When completing a task, workers should avoid leaning away from the ladder. Instead, they should ____

keep their weight centered between side rails

If using ladders where the employee or ladder could contact exposed energized electrical equipment, they must have ____

non-conductive side rails such as wood or fiber glass

do not use ladders on slippery surfaces unless secured or provided with ___

slip resistant feet

While working on a ladder, it is important that employees wear proper footwear such as _____

slip-resistant work boots

stairways with four or more risers or more than 30 inches high must have a ______

stair rail along each unprotected side or edge

unprotected sides of landings must have ____

standard 42 in gaurdrail systems

A competent person must train each employee in ____

- the nature of fall hazards in work area - correct procedures for erecting, maintaining, and disassembling the fall protection systems to be used - proper construction, use, placement, and care in handling of all stairways and ladders - maximum intended load-carrying capacities of ladders

when must you use a double cleated ladder?

- when ladders are the only way to enter or exit a working area with 25 or more employees -

rungs on ladders have to be spaced how many inches apart?

10 to 14 inches

side rails must be ____ inches apart?

11 1/2

there must be a stairway or ladder at points of access where there is an elevation break of ____ inches

19 inches

where doors or gates open directly on a stairway, provide a platform that extends how many inches beyond the swing of the door?

20 inches

rails must be able to withstand a force of ____ pounds

200

When using a portable ladder for access to an upper landing surface, the side rails must extend at least ____ ft above the upper landing surface

3

To create a safe handhold to reach another level, how many feet above the landing point should the ladder be extended?

3 feet

stairs need to be installed at __ and __ degrees

30 and 50

length and width of stairway landings

30 in deep and 22 in wide

stairways with four or more risers or higher than ____ must be equipped with at least one handrail

30 inches

ladders must support _____ the maximum load

4 times

Who must inspect ladders for visible defects like broken or missing rungs

competent person

Workers should avoid using ladders near ____

doorways

vertical rise of stairway landings

every 12 ft or less of vertical rise