FREE NEC Special Occupancies Questions and Answers

Question 1

An electrician is installing wiring for a branch circuit serving a patient bed location in a hospital's general care area.
According to NEC Article 517, which of the following is a requirement for the wiring method?

Accepted Answer

The wiring must be installed in a metallic raceway or a cable with a metallic sheath.

Answer

Type NM cable is permitted if concealed within walls.

Answer

An insulated equipment grounding conductor is optional if the raceway is metallic.

Answer

PVC conduit is a permitted wiring method.

Question 2

Which of the following wiring methods is generally permitted in an assembly occupancy with a fire-rated construction, such as a theater intended to hold over 100 people?

Accepted Answer

Type AC (Armored Cable).

Answer

Electrical Nonmetallic Tubing (ENT) concealed in the ceiling.

Answer

Nonmetallic-sheathed cable (Type NM).

Answer

Rigid Nonmetallic Conduit (RNC) embedded in the floor.

Question 3

An equipotential plane is being installed in a concrete floor of a livestock confinement area within an agricultural building. What is the MINIMUM size solid copper bonding conductor required to connect this plane to the electrical grounding system?

Accepted Answer

8 AWG

Answer

10 AWG

Answer

6 AWG

Answer

12 AWG

Question 4

An electrician is installing service equipment for a new floating dock at a marina. According to NEC Article 555, where must this service equipment be located?

Accepted Answer

On land, adjacent to the structure served.

Answer

On the floating dock itself for easy access.

Answer

On an adjacent floating structure connected to the dock.

Answer

At the shore end of the gangway, mounted directly to it.

Question 5

For temporary electrical power and lighting installations on a construction site, what is the general time limit for such an installation before it must be removed or replaced with a permanent system?

Accepted Answer

90 days

Answer

30 days

Answer

6 months

Answer

The duration of the construction project

Question 6

Which of the following is a requirement for an underwater luminaire installed in a permanently installed swimming pool?

Accepted Answer

The branch-circuit conductors must include an insulated copper equipment grounding conductor no smaller than 12 AWG.

Answer

The luminaire can be supplied by a standard autotransformer.

Answer

The forming shell is not required to be bonded to the equipotential grid.

Answer

Splicing of the equipment grounding conductor is permitted in the conduit.

An electrician is installing wiring for a branch circuit serving a patient bed location in a hospital's general care area.According to NEC Article 517, which of the following is a requirement for the wiring method?

An electrician is installing wiring for a branch circuit serving a patient bed location in a hospital's general care area.
According to NEC Article 517, which of the following is a requirement for the wiring method?