CDS CDS Structural Assessment & Demolition Methods 2

Question 1

What is the primary purpose of a demolition sequence plan?

Accepted Answer

Specify the order of structural element removal to maintain stability and worker safety

Answer

List approved recycling and salvage vendors

Answer

Calculate disposal fees and tipping charges

Answer

Identify all permit requirements for the project

Question 2

Robotic demolition equipment is primarily deployed:

Accepted Answer

In confined spaces or high-hazard areas too dangerous for an operator

Answer

For large open-air demolitions of isolated structures

Answer

To replace all traditional mechanical demolition methods

Answer

Exclusively for exterior facade removal

Question 3

How does selective demolition differ from total demolition?

Accepted Answer

Selective demolition removes specific components while preserving the rest of the structure

Answer

Selective demolition uses only explosive methods

Answer

Selective demolition applies only to residential buildings

Answer

Selective demolition does not require permits

Question 4

What is the key structural hazard when demolishing a post-tensioned concrete floor system?

Accepted Answer

Stored tension in steel tendons that can release violently if improperly cut

Answer

The dark color of the concrete surface

Answer

The decorative finish applied over the slab

Answer

The age of the original concrete mix design

Question 5

In a pre-demolition structural assessment, what does a load path analysis determine?

Accepted Answer

How gravity and lateral loads are transferred through the structure to the foundation

Answer

The preferred truck routing for debris haul-off

Answer

The total weight of demolition debris generated

Answer

The routing of electrical circuits within the structure

Question 6

What is the primary hazard associated with demolishing older steel-framed buildings with riveted connections?

Accepted Answer

Unexpected release of residual stress causing sudden member movement or collapse

Answer

Accelerated corrosion of nearby rebar

Answer

High electrical conductivity of the steel

Answer

Low recycling value of riveted steel sections