PC Electrical Codes & Standards 2

Question 1

Under NEC Article 230, what is the maximum number of service disconnects permitted for a single building?

Accepted Answer

6

Answer

NEC 230.71 allows a maximum of six disconnecting means for a single service.

Question 2

What NEC article governs branch circuits?

Accepted Answer

Article 210

Answer

NEC Article 210 covers branch circuits, including their ratings, outlets, and required circuits.

Question 3

Per NEC 210.52, how many small appliance branch circuits are required in a kitchen?

Accepted Answer

Two 20A circuits

Answer

NEC 210.52(B) requires at least two 20-ampere small appliance branch circuits in the kitchen.

Question 4

Which NEC article covers grounding and bonding?

Accepted Answer

Article 250

Answer

NEC Article 250 covers all requirements for grounding and bonding of electrical systems.

Question 5

What is the minimum headroom required in electrical equipment working spaces per NEC 110.26?

Accepted Answer

6 feet

Answer

NEC 110.26(A)(3) requires a minimum headroom of 6 feet, 6 inches — but the minimum is 6 feet for working clearance depth; the correct minimum headroom is 6 feet 6 inches per 110.26(E)(1), but 110.26(A)(3) minimum is 6.5 ft. The minimum headroom is 6 feet 6 inches (6.5 ft).

(PC) Professional Electrical Contractor Practice Test

(PC) Professional Electrical Contractor Practice Test

PC Electrical Codes & Standards 2