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