CHST CHST - Construction Health and Safety Technician Scaffolding and Elevated Work Platforms Questions and Answers 2

Question 1

What is the maximum height-to-base ratio for a freestanding mobile scaffold before additional stabilization is required?

Accepted Answer

3:1

Answer

2:1

Answer

4:1

Answer

5:1

Question 2

Which OSHA standard governs the use of aerial lifts in construction?

Accepted Answer

29 CFR 1926.453

Answer

29 CFR 1926.452

Answer

29 CFR 1926.502

Answer

29 CFR 1926.550

Question 3

When using an aerial lift (boom-supported), workers must:

Accepted Answer

Stand on the floor of the bucket only and use a body belt or harness attached to the boom or basket

Answer

Clip their lanyard to an adjacent structure for extra security

Answer

Keep at least one hand on the controls at all times

Answer

Wear a hard hat but no fall protection is required below 15 feet

Question 4

What must be done before moving a mobile scaffold?

Accepted Answer

Ensure no workers or materials are on the scaffold

Answer

Lower the platform to its lowest position

Answer

Check that all casters are unlocked

Answer

Both lower the platform and verify no workers or materials are on it

Question 5

Scaffold planks must extend beyond their end supports by a minimum of:

Accepted Answer

6 inches

Answer

3 inches

Answer

12 inches

Answer

18 inches

Question 6

What is the maximum overhang allowed for a scaffold plank beyond its end support?

Accepted Answer

18 inches

Answer

6 inches

Answer

12 inches

Answer

24 inches