Licensed Electrical Contractor NEC Code Requirements 1

Question 1

According to NEC 110.26, the minimum depth of working space required in front of electrical equipment rated 600V or less (Condition 1) is:

Accepted Answer

3 feet

Answer

NEC 110.26(A)(1) Condition 1 mandates a minimum 3-foot depth of clear working space in front of equipment operating at 600V or less to allow safe access and maintenance.

Question 2

Under NEC Chapter 9, Table 1, the maximum allowable raceway fill for three or more conductors is:

Accepted Answer

40%

Answer

NEC Chapter 9, Table 1 limits raceway fill to 40% of the cross-sectional area when three or more conductors are installed, reducing heat buildup and allowing for conductor movement.

Question 3

The NEC requires that an equipment grounding conductor be identified by:

Accepted Answer

Green insulation, green with yellow stripe, or bare conductor

Answer

NEC 250.119 requires equipment grounding conductors to be identified by green insulation, green with one or more yellow stripes, or a bare (uninsulated) conductor so they are not confused with ungrounded or grounded conductors.

Question 4

According to NEC 210.8(A), GFCI protection is required for all 125-volt, 15- and 20-ampere receptacles that serve countertop surfaces in a dwelling unit:

Accepted Answer

Kitchen

Answer

NEC 210.8(A)(6) specifically requires GFCI protection for receptacles serving countertop surfaces in kitchens of dwelling units due to the proximity of water sources and increased shock risk.

Question 5

Per NEC 230.70(A)(1), the service disconnecting means for a one-family dwelling must be installed:

Accepted Answer

At a readily accessible location either outside or inside the structure nearest the point of service entrance

Answer

NEC 230.70(A)(1) requires the service disconnect to be at a readily accessible location nearest the point where the service conductors enter the building, enabling first responders and utility workers to quickly de-energize the structure.

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor NEC Code Requirements 1