Walking and Working Surfaces Flashcards

Which OSHA standard covers portable ladders in general industry?

Answer: 1910 Subpart D

Subpart D of 1910 covers walking-working surfaces, including ladders in general industry.

When using a portable straight ladder, it should be positioned so the horizontal distance from the base to the support equals about what fraction of the working length?

Answer: One-quarter

The 4-to-1 rule places the base one-quarter of the working length away from the wall.

How many points of contact should a worker maintain when climbing a ladder?

Answer: Three points

Three points of contact (two hands and a foot, or two feet and a hand) keeps the climber stable.

A fixed ladder that extends more than what height must generally be equipped with fall protection under the updated 1910.28 rule?

Answer: 24 feet

Fixed ladders extending more than 24 feet require a personal fall arrest or ladder safety system under current rules.

By what date must existing fixed ladders over 24 feet have a ladder safety or personal fall arrest system, replacing cages, under OSHA's phase-in?

Answer: November 2036

OSHA requires all such fixed ladders to have compliant systems by November 18, 2036.

What should a worker do before using a portable ladder found with a cracked side rail?

Answer: Tag it out of service and remove it from use

Defective ladders must be tagged and removed from service until repaired or discarded.

How far should a portable ladder extend above a landing surface when used for access to an upper level?

Answer: At least 3 feet

Ladders used for access must extend at least 3 feet above the landing to provide a handhold.