CDC 3E051A Vol.3 Unit 4

What electrical component is the normal use of an octagonal box ?

A) Lighting outlet.
B) Receptacles outlet.
C) Switches.
D) Special purpose receptacle.

What component must be equipped with a metal box used for an old-work installation ?

A) Self-tapping screws.
B) F straps.
C) Spring metal clips.
D) Support ears.

What metallic cable has a #16 AWG aluminum bonding wire but does not have a green grounding conductor ?

A) Armored cable (AC).
B) Metal clad cable (MC).
C) Mineral insulated cable (MI).
D) Health care facility cable (HCF).

How is the minimum bend radius of metal clad cable calculated ?

A) Multiply the radius of the cable by 5.
B) Multiply the cables outside diameter by 7.
C) Multiply the radius of the cable by 7.
D) Multiply the cables outside diameter by 5.

A pigtail splice is finished with

A) Plastic tape.
B) Epoxy resin.
C) A wire nut.
D) Rubber and friction tape.

In addition to the splices required, grounding connections must be made to the boxes used in a circuit to ensure that they are

A) "Hot."
B) "Cold."
C) Isulated.
D) Grounded.

The maximum weight of a fixture that can be supported by an outlet box is

A) 40 pounds.
B) 20 pounds.
C) 50 pounds.
D) 10 pounds.

What is the taper per inch santard conduit-cutting die used on rigid metal conduit ?

A) 3/4 inch.
B) 1/4 inch.
C) 1/2 inch.
D) 1 inch.

Bends made to conduit while on the job are called

A) Handmade bends.
B) Field bends.
C) Manual bends.
D) Working bends.

When a number of conduit runs are to be installed parallel and adjacent to each other you should install the

A) Smallest conduit on top
B) Conduit all at the same time.
C) Smallest conduit first.
D) Largest conduit first.

Electrical metallic tubing (EMT) and IMC require supports within how many inches and feet of each outlet box, cabinet, or fitting, and every other foot thereafter.

A) 18 inches/5 feet.
B) 12 inches/3 feet.
C) 36 inches/10 feet.
D) 18 inches/5 feet.

The number of conductors you can put in conduit is based on the

A) Size of conduit, conductor insulation, and length of run.
B) Size of conductor, length of run, and number of bends.
C) Conductor insulation, length of run, and number of bend.
D) Size of conduit, conductor size, and conductor insulation.