CDS Building Codes & Standards 2

Question 1

Under IBC Chapter 33, what is the minimum height requirement for a debris chute opening at the point of loading to prevent worker injury?

Accepted Answer

4 feet above the working surface

Answer

IBC Chapter 33 requires debris chute openings to be at least 4 feet above the working surface to reduce fall risk.

Question 2

Which ANSI/ASSE standard specifically addresses fall protection requirements for demolition contractors?

Accepted Answer

ANSI A10.6

Answer

ANSI A10.6 is the safety standard for demolition operations and covers fall protection requirements specific to demolition contractors.

Question 3

According to NFPA 241, a fire watch must be maintained for how long after hot work is completed in a demolition zone?

Accepted Answer

1 hour

Answer

NFPA 241 requires a minimum 1-hour fire watch after hot work to detect smoldering fires that may ignite delayed combustion.

Question 4

When demolishing a load-bearing masonry wall, OSHA 29 CFR 1926.854 requires that floors be shored if the span exceeds what dimension?

Accepted Answer

15 feet

Answer

OSHA 1926.854 requires floor shoring when unsupported span exceeds 15 feet during masonry wall removal to prevent progressive collapse.

Question 5

The IBC defines a 'dangerous building' for demolition purposes primarily based on which criterion?

Accepted Answer

Structural elements unable to support intended loads

Answer

IBC classifies a building as dangerous when its structural members can no longer safely support the loads they were designed to carry.

(CDS) Certified Demolition Supervisor Practice Test