CDS Building Codes & Standards 3

Question 1

According to OSHA 29 CFR 1926.850(a), what must be completed before any demolition work begins?

Accepted Answer

Engineering survey of the structure by a competent person

Answer

OSHA 1926.850(a) requires an engineering survey by a competent person to assess structural integrity and identify hazardous conditions before demolition starts.

Question 2

Which NFPA standard regulates the safe handling and storage of flammable cutting gases used during demolition of steel structures?

Accepted Answer

NFPA 51

Answer

NFPA 51 governs the design and installation of oxygen-fuel gas systems, including acetylene and propane used for cutting steel during demolition.

Question 3

The International Existing Building Code (IEBC) classifies a demolition project as a 'Level 3 alteration' when what percentage of aggregate area is affected?

Accepted Answer

More than 50%

Answer

IEBC designates Level 3 alteration when work affects more than 50% of the building's aggregate area, triggering more stringent code compliance.

Question 4

Under IBC Section 3303.5, when a demolition project creates an open excavation adjacent to a public way, the minimum fencing height required is:

Accepted Answer

6 feet

Answer

IBC 3303.5 requires excavations adjacent to public ways to be enclosed with fencing at least 6 feet in height to protect the public.

Question 5

Which OSHA standard requires that stairwells used for egress during demolition remain free of debris and adequately lit at all times?

Accepted Answer

29 CFR 1926.34

Answer

OSHA 29 CFR 1926.34 addresses means of egress and requires clear, illuminated exit routes including stairwells throughout demolition operations.

(CDS) Certified Demolition Supervisor Practice Test

(CDS) Certified Demolition Supervisor Practice Test

CDS Building Codes & Standards 3