CPI Blueprints, Schematics, & Specifications 3

Question 1

Which type of line on a mechanical drawing indicates a hidden edge or feature not visible from the current view?

Accepted Answer

A dashed or hidden line

Answer

Hidden lines are drawn as evenly spaced dashes to represent edges or features that exist behind the visible surface in that view.

Question 2

A specification calls for conduit installed 'concealed in walls.' If the inspector finds exposed conduit in the same wall, what is the proper course of action?

Accepted Answer

Remove and reinstall per the specification

Answer

Work that does not conform to specifications must be corrected to match the specified requirement unless a formal change order is approved.

Question 3

On electrical drawings, what does the symbol of a circle with an 'X' inside typically represent?

Accepted Answer

An incandescent light fixture

Answer

A circle with an X is the standard symbol for a ceiling-mounted incandescent or general-purpose light fixture on electrical floor plans.

Question 4

What is the purpose of a 'cut sheet' or product data sheet referenced in project specifications?

Accepted Answer

It provides manufacturer technical details for specified products

Answer

Cut sheets are manufacturer-provided documents that detail product dimensions, ratings, installation requirements, and performance data to verify spec compliance.

Question 5

A drawing title block shows 'Rev: C.' What does this indicate?

Accepted Answer

The drawing has been revised three times since the original issue

Answer

Revision letters (A, B, C…) track how many times a drawing has been updated; Rev C means the drawing has gone through three revisions after the original.

(CPI) Certified Professional Installer Practice Test

(CPI) Certified Professional Installer Practice Test

CPI Blueprints, Schematics, & Specifications 3