Licensed Electrical Contractor NEC General Requirements 5

Question 1

Per NEC 110.14(A), connections of conductors to terminals must be made by means of:

Accepted Answer

Pressure connectors (including set-screw type), solder lugs, or splices to flexible leads

Answer

NEC 110.14(A) permits conductor-to-terminal connections via pressure connectors, solder lugs, or splices, with soldering alone prohibited unless the terminal is designed for it.

Question 2

Which NEC section prohibits foreign systems (piping, ducts, etc.) from entering or passing through the dedicated electrical space above switchboards and panelboards?

Accepted Answer

110.26(D)

Answer

NEC 110.26(D) establishes dedicated electrical space and prohibits foreign systems from entering or passing through this protected zone.

Question 3

According to NEC 110.11, electrical equipment exposed to deteriorating agents must be:

Accepted Answer

Identified for use in the presence of those agents

Answer

NEC 110.11 requires equipment exposed to deteriorating agents (gases, fumes, liquids, etc.) to be identified and approved for use in those conditions.

Question 4

What is the NEC requirement when equipment is marked with a maximum conductor size?

Accepted Answer

Conductors must not exceed the marked maximum size

Answer

Per NEC 110.3(B), equipment markings must be followed; if a maximum conductor size is marked, conductors must not exceed that size.

Question 5

Under NEC 110.26, what is the minimum illumination requirement for working spaces containing electrical equipment?

Accepted Answer

Sufficient illumination must be provided for all working spaces about electrical equipment

Answer

NEC 110.26(D) requires that adequate illumination be provided for all working spaces about service equipment, switchboards, panelboards, or motor control centers.

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor NEC General Requirements 5