CRC Blueprint Reading & Specifications 2

Question 1

On a residential blueprint, what does the abbreviation 'CLG HT' typically indicate?

Accepted Answer

Ceiling height

Answer

CLG HT stands for ceiling height, a critical dimension shown on floor plans and sections.

Question 2

A dashed line on a floor plan most commonly represents:

Accepted Answer

An overhead feature or hidden element above the cut plane

Answer

Dashed (hidden) lines on floor plans represent features above the standard 4-foot cut plane, such as upper cabinets or headers.

Question 3

In construction specifications, Division 03 of the MasterFormat refers to:

Accepted Answer

Concrete

Answer

MasterFormat Division 03 covers concrete work including formwork, reinforcing, and cast-in-place concrete.

Question 4

What does a triangle symbol with a letter or number inside it on blueprints typically denote?

Accepted Answer

A section cut reference pointing to another sheet

Answer

A triangle with a letter/number is a section reference bubble, indicating where a section cut is taken and which sheet shows the detail.

Question 5

On a site plan, contour lines that are close together indicate:

Accepted Answer

Steep slope

Answer

Closely spaced contour lines mean the elevation changes rapidly over a short horizontal distance, indicating steep terrain.

(CRC) Certified Residential Contractor Practice Test