Exam 11: Scaffolds, Ladders, and Sawhorses

Ladders may be built on a jobsite when no ladders are available.

The capacity of the top horizontal member of a scaffold's end frame, called the ____, may never be exceeded.

In a metal scaffold, cross braces may be used as a means of access or egress.

All scaffolds and their components must be capable of supporting, without failure, their own weight and at least ____ times the maximum intended load applied or transmitted to them.

All workers on a scaffold must wear hard hats.

The loads exerted onto the outer legs of a scaffold more than the inner legs.

Pump jack scaffolds are used widely for ____, where staging must be kept away from the walls, and when a steady working height is desired.

The rungs of a metal scaffolding may sometimes serve as an access ladder.

Roofing brackets are made of ____.

____-duty scaffolds are designed at 75 pounds per square foot.

Two of the most common wood species used for scaffold planks are southern yellow pine and ____.

In a metal scaffold, ____ rigidly connect one scaffold member to another member.

A typical personal fall protection system consists of five related parts: the harness, lanyard, lifeline, rope grab, and ____.

Workers must know the capacity of scaffolds they are erecting and using.

Ladder ____ are metal brackets installed on ladders to hold scaffold plank.

Most people injured on construction scaffolding were trained on scaffold safety

According to the U.S.Occupational Safety and Health Administration (OSHA), employers are required to have a ____ to supervise and direct scaffold erection.

Scaffold ____ must be at least 18 inches wide with a guardrail system in place.

The rolling tower, or ____ scaffold, is widely used for small jobs, generally not more than 20 feet in height.

If the frame sections are 5 * 7, a rolling tower can be only ____ feet high.