CDS Blueprint Reading & Specifications 2

Question 1

On a demolition blueprint, what does a dashed or hidden line typically represent?

Accepted Answer

A feature hidden behind or below the current view

Answer

Hidden lines (dashed) indicate edges or features that exist but are not directly visible from the current viewing angle.

Question 2

A demolition specification section labeled '02 41 00' refers to which CSI MasterFormat division?

Accepted Answer

Division 02 – Existing Conditions

Answer

CSI MasterFormat Division 02 covers Existing Conditions, which includes demolition work such as section 02 41 00 Demolition.

Question 3

When a structural drawing notes 'REMOVE AND SALVAGE,' what action is required of the demolition crew?

Accepted Answer

Carefully remove the element and store it for reuse or owner retention

Answer

'Remove and Salvage' means the item must be carefully removed and preserved for reuse, resale, or owner retrieval.

Question 4

A floor plan scale of 1/4" = 1'-0" means a wall drawn 3" long on paper represents how many feet in the field?

Accepted Answer

12 feet

Answer

At 1/4" = 1'-0", each inch equals 4 feet; a 3" line represents 3 × 4 = 12 feet.

Question 5

On a demolition site plan, a symbol showing a circle with an X inside typically denotes what?

Accepted Answer

A benchmark elevation point

Answer

A circle with an X is a standard surveying symbol for a benchmark or control point used for elevation reference.

(CDS) Certified Demolition Supervisor Practice Test