NEC General Requirements Flashcards
7 cards from real Licensed Electrical Contractor practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 NEC General Requirements flashcards as text
Per NEC 110.14(A), connections of conductors to terminals must be made by means of:
Answer: Pressure connectors (including set-screw type), solder lugs, or splices to flexible leads
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.
Which NEC section prohibits foreign systems (piping, ducts, etc.) from entering or passing through the dedicated electrical space above switchboards and panelboards?
Answer: 110.26(D)
NEC 110.26(D) establishes dedicated electrical space and prohibits foreign systems from entering or passing through this protected zone.
According to NEC 110.11, electrical equipment exposed to deteriorating agents must be:
Answer: Identified for use in the presence of those agents
NEC 110.11 requires equipment exposed to deteriorating agents (gases, fumes, liquids, etc.) to be identified and approved for use in those conditions.
What is the NEC requirement when equipment is marked with a maximum conductor size?
Answer: Conductors must not exceed the marked maximum size
Per NEC 110.3(B), equipment markings must be followed; if a maximum conductor size is marked, conductors must not exceed that size.
Under NEC 110.26, what is the minimum illumination requirement for working spaces containing electrical equipment?
Answer: Sufficient illumination must be provided for all working spaces about electrical equipment
NEC 110.26(D) requires that adequate illumination be provided for all working spaces about service equipment, switchboards, panelboards, or motor control centers.
Per NEC 110.13, electrical equipment must be firmly secured to the surface on which it is mounted. Which of the following does NEC 110.13(B) specifically address?
Answer: Mounting of equipment on supporting structures made of wood
NEC 110.13(B) specifically addresses the mounting of electrical equipment on wood structural members, requiring that the wood be dry and suitable.
Which NEC section requires that field-applied hazard markings on equipment use the signal word 'DANGER' for conditions that could result in death or serious injury?
Answer: 110.21(B)
NEC 110.21(B) establishes requirements for field-applied hazard markings, requiring 'DANGER' for potentially lethal conditions and 'WARNING' for conditions that may cause serious injury.