CEI Inspection Techniques & Procedures 2

Question 1

When inspecting a service entrance, which condition would require the inspector to flag the installation as deficient?

Accepted Answer

Unprotected service entrance cable where it passes through the soffit

Answer

Service entrance cable must be protected where it passes through building structural components like soffits; unprotected cable is a NEC violation.

Question 2

During a rough-in inspection of a residential bathroom, which finding is a code violation?

Accepted Answer

A receptacle outlet installed within 3 feet of the bathtub edge

Answer

NEC 406.9(B) prohibits receptacles within 3 feet of a bathtub or shower unless they are GFCI protected and installed on a wall surface not facing the tub.

Question 3

An inspector observes that wire connectors (wire nuts) have been used to splice conductors inside a wall cavity with no junction box. The correct action is to:

Accepted Answer

Require a listed junction box with a cover plate to be installed

Answer

NEC 300.15 requires all splices to be made in listed boxes or conduit bodies; open-wall splices are prohibited regardless of insulation.

Question 4

When conducting a final inspection on a commercial occupancy, what does the inspector verify regarding equipment grounding conductors in conduit systems?

Accepted Answer

That EGC size matches the circuit's overcurrent device per NEC Table 250.122

Answer

NEC Table 250.122 specifies minimum EGC sizes based on the rating of the circuit's overcurrent protective device.

Question 5

Which inspection method is most appropriate for verifying conductor insulation integrity in an existing installation?

Accepted Answer

Megohmmeter (insulation resistance) testing

Answer

A megohmmeter measures insulation resistance in megohms and can detect degraded insulation that is not visible to the naked eye.

(CEI) Certified Electrical Inspector Practice Test

(CEI) Certified Electrical Inspector Practice Test

CEI Inspection Techniques & Procedures 2