CHST Concrete, Masonry, and Formwork Safety 2

Question 1

Under OSHA 1926.706, how far must a masonry wall limited access zone extend from the wall?

Accepted Answer

The wall height plus 4 feet

Answer

The limited access zone equals the height of the wall to be constructed plus four feet and runs the entire length of the wall.

Question 2

On which side of a masonry wall under construction must the limited access zone be established?

Accepted Answer

The side of the wall that is unscaffolded

Answer

OSHA requires the zone on the side of the wall that will be unscaffolded, where a collapse would fall.

Question 3

Masonry walls taller than what height must be adequately braced to prevent overturning unless otherwise supported?

Accepted Answer

8 feet

Answer

1926.706(b) requires walls over 8 feet in height to be adequately braced until permanent supporting elements are in place.

Question 4

Who may enter a masonry wall limited access zone while the wall is being built?

Accepted Answer

Only employees actively engaged in constructing the wall

Answer

Entry is restricted to employees actively engaged in constructing the wall; all others are kept out.

Question 5

What guarding does OSHA require on masonry saws?

Accepted Answer

A semicircular enclosure over the blade

Answer

1926.701(f) requires a semicircular enclosure over the blade, constructed to retain blade fragments if the blade breaks.

CHST - Construction Health and Safety Technician Practice Test