CCI CCI Electrical Systems Inspection 2

Question 1

During an electrical inspection, what is the purpose of a load calculation?

Accepted Answer

To determine if the service entrance capacity is adequate for the building's electrical demand

Answer

To calculate the number of outlets needed per room

Answer

To verify wire gauge selection for individual circuits

Answer

To check conduit fill percentages

Question 2

What NEC article governs the installation of electrical wiring in hazardous locations?

Accepted Answer

Article 500

Answer

Article 300

Answer

Article 230

Answer

Article 410

Question 3

A CCI inspector notices a junction box is installed without a cover plate. What is the correct action?

Accepted Answer

Require correction — all junction boxes must have accessible, secured cover plates

Answer

Allow it if the box is in an unfinished space

Answer

Allow it temporarily during active construction phase

Answer

Only require a cover if the box contains spliced conductors

Question 4

What is the maximum conduit fill percentage allowed for three or more conductors per NEC Chapter 9?

Accepted Answer

40%

Answer

53%

Answer

31%

Answer

60%

Question 5

When inspecting service entrance conductors, how must they be protected where they pass through the exterior wall?

Accepted Answer

Installed in a weatherproof conduit or raceway approved for outdoor use

Answer

Wrapped with waterproof electrical tape

Answer

Coated with sealant only

Answer

No special protection is required for short wall penetrations

Question 6

What is the required depth of burial for direct-buried electrical cable (UF cable) under a residential driveway per NEC?

Accepted Answer

24 inches

Answer

12 inches

Answer

18 inches

Answer

6 inches