2014 E2 Commercial Electrical Inspector Exam Quiz

Of the following output characteristics, which is NOT required to be compatible to the output of a generator or other electric power production source operating in parallel with an electrical supply system?

Power-limited fire alarm cable must have a moisture-impervious metal sheath or be listed for the purpose if they are used in what kind of location?

For a trade size 3 in. rigid Schedule 40 PVC conduit over 24 inches long, what are the maximum number of size 1 AWG XHHW compact conductors allowed?

For a branch-circuit where lighting outlets or general-use receptacles are also supplied, what is the maximum percentage of the rating that may not be exceeded by a cord-and-attachment-plug connected room air-conditioner?

What is the minimum size THW copper branch-circuit conductor required by the NEC for a 3-phase, continuous-duty, ac motor drawing 70 amperes for phase, when all terminations are rated for 75° C?

Lighting and trolley busway must be installed __________ Ft. or more above the floor or working platform, unless a cover is provided that is identified for the purpose.

In what location are disconnecting means NOT required for individual luminaries with fluorescent double ended lamps and ballasts?

What is the minimum size for a copper grounding electrode conductor attached to the concrete-encased steel reinforcing bars used as a grounding electrode, when the ungrounded service-entrance conductors for a residence are size 3/0 AWG copper conductors?

The material selected for a grounding electrode conductor should be protected from corrosion or resist any __________ condition extant at the installation.

If the sum of PV system voltages of two monopole subarrays in a bipolar PV system exceeds the rating of the conductors and connected equipment, they must __________.

A location used to house four or more persons incapable of self-preservation due to age; mental limitations, mental illness or chemical dependency; or physical limitation due to accident or illness on a(n) __________ basis is a limited care facility.

What is required for a control transformer when a 240-volt wye-connected motor gets power from a converted single-phase source, and it is intended to connect a 120/240-volt transformer to control the motor on the load side of the converter___________?

What is the minimum rating for a service disconnecting means when supplied with a 120/240-volt, 3-wire, single phase service for a one-family dwelling?

During lightning events, limiting the length of the primary protector grounding conductors for communications circuits assists in reducing voltage between the buildings communications systems and __________.

REPLACEFor a one-family dwelling with a 200 ampere, 120/240-volt, single-phase main service panel, supplied with size 2/0 AWG THW copper ungrounded service-entrance conductors in rigid metal conduit (RMC), what is the minimum allowed size of bonding jumper for the service-entrance conduit?

General-use dimmer switches shall be used only to control permanently installed __________ luminaries (lighting fixtures).

On a metal wireway cross-section, what is the maximum percent that may be occupied by conductors, splices, and taps at any point?

For a 40 unit multi-family dwelling unit, with meters in two banks of 20 each and individual meters to each dwelling unit. Half (20) of the dwelling units have electric ranges up to 12 kW each. Assume range kW rating the same as kVA rating in accordance with Article 220.55. Each dwelling unit has 840 sq. ft. of space. Laundry facilities are on premises and available to all tenants. The other half of the ranges are gas. The general lighting load for each unit, in VA is __________.

What is the minimum volume, in inches, required of a two (2) gang device box that is to contain two (2) size 14/2 AWG with ground NM cables and two (2) size 12/2 AWG with ground NM cables connected to a duplex receptacle connected to a single-pole switch, which also contain four (4) cable clamps?

What is the minimum allowable trade size intermediate metal conduit (IMC) required to contain a total of ten (10) copper THW conductors in a 20 foot run, five (5) size 1 AWG and five (5) size 3 AWG?