Exam 9: Special Systems

Two methods can be used to provide floor outlets: (1)installing ____ raceway or (2)installing floor boxes.

Floor boxes, either metallic or nonmetallic, can be wired using ____.

In a communications system, the inside conduit drops ____.

Conductors to be installed in raceways may be spliced at ____ or within the raceway if the cover of the raceway is removable.

____ for multioutlet assemblies are available with GFCI, isolated ground, and surge suppression features.

The covers for multioutlet assemblies are available in steel, ____, and PVC with vinyl laminates of different colors and wood veneers such as maple, cherry, mahogany, and oak.

​Discuss the locations of various components of a power-limited fire alarm system in a commercial building.

What components are typically included in an exploded-view drawing of a floor box with leveling screws?

Even though multipair conductors are no longer used extensively in telephone installations, the size of the conduit should be trade size ____ or larger.

Give a brief overview of communications systems requirements and wiring.

Some floor boxes must be installed to the correct height by adjusting the ____ before the concrete is poured.

In the first phase of the installation of a telephone system in a commercial building, the ____ will install an empty conduit system according to specifications for the commercial building and in the locations indicated on the working drawings.

Because of small openings and limited space, ____ are used in communications systems rather than the standard conduit fittings.

When are surface raceways installed?

When connecting receptacles in a multioutlet assembly, the ____ must be continuous so that the removal of a device will not interrupt continuity.

The combined size of the conductors, splices, and taps shall not fill more than ____ percent of the raceway at the point where the splices and taps occur.

In a dual-duct system, the junction box is constructed so that the power and communications systems are ____.

____ are similar to surface raceways and are designed to hold both conductors and devices.

What is the load allowance for a fixed multioutlet assembly?

An allowance of ____ volt-amperes is made for the installation of telephone equipment to provide the power required to operate the special switching equipment for the telephones used by tenants in a commercial building.