CCI CCI Electrical Systems Inspection 1

Question 1

What is the minimum clearance required between electrical panels and combustible materials per the NEC?

Accepted Answer

3 feet

Answer

The NEC requires a minimum 3-foot working clearance in front of electrical panels to allow safe access and operation.

Question 2

During a rough-in inspection, what must a construction inspector verify about electrical conduit bends?

Accepted Answer

No more than 360 degrees total bends between pull points

Answer

The NEC limits total conduit bends between pull points or boxes to 360 degrees to ensure wire can be pulled through without damage.

Question 3

Which wire gauge is the minimum required for a standard 20-amp branch circuit in residential construction per NEC?

Accepted Answer

12 AWG

Answer

A 20-amp circuit requires a minimum of 12 AWG copper wire to safely carry the rated current without overheating.

Question 4

What does a CCI inspector look for when verifying GFCI protection in a bathroom?

Accepted Answer

All receptacles within 6 feet of a water source must be GFCI protected

Answer

NEC requires GFCI protection for all bathroom receptacles regardless of distance from water sources, with the 6-foot rule applying to kitchen countertop receptacles.

Question 5

When inspecting electrical grounding, which conductor color is designated for the equipment grounding conductor in US wiring?

Accepted Answer

Green or bare copper

Answer

The NEC designates green insulation or bare copper as the equipment grounding conductor, which must not be used for any other purpose.

(CCI) Certified Construction Inspector Practice Test

(CCI) Certified Construction Inspector Practice Test

CCI CCI Electrical Systems Inspection 1