0109/0110/0111

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

Cables routed through bored holes in framing members must maintain a distance fro the nearest edge of not less than ________.

1 -1/4"

All of the following scales can be found on a triangle architect's scale except __________.

1 3/4" to 1' 0"

How many square feet of livable space are in the home in the figure above?

1,200 sq ft

What is the total connected load of circuit A-1 if each of the type C lighting fixtures in the figure above has a total lamp and ballast load of 150VA?

1,200VA

when a noncombustible wall finish is used, an outlet box may be recessed _______.

1/4"

A residential lighting branch circuit is to be loaded at no more than 80% of its capacity. If the circuit is operating at 120V and is rated at 12A, what is the maximum initial connected load?

1152VA

Duplex receptacle outlets should be placed no more than ____________.

12 feet apart

Conductors used for electrical heating units must be sized for what percentage of the heater's nameplate rating?

125%

Exposed concurrent-carrying metal parts of fixed equipment must be grounded if the equipment operates with any terminal over ___________.

150V to ground

Listed FMC may be used as an equipment grounding conductor if the circuit conductors are protected by overcurrent devices rated at _____________.

20A or less

Which of the following is the minimum NEC lighting load requirement for the home in the figure above?

3,600VA

The minimum clearance of service drop conductors over a residential driveway is reduced to 12' when the voltage is limited to _________________-.

300V to ground

Select the list of conductors that begin with the smallest and go up.

50 to 1 then 1/O, 2/O, 3/O, and 4/O

The minimum free conductor length for making connections to wiring devices is specified by the NEC is ________.

6" (NEC Section 300.14)

The NEC allows the load calculation for the ground neutral conductor supplying electrical ranges and dryers to have a demand factor of ________.

70%

Which of the following is used in an electrical diagram to show wiring concealed in a floor?

A dashed line

An electrical drawings title block includes the ______________.

Address of the project

The United States uses which of the following systems of wire sizes?

American Wire Gauge (AWG)

Power to the entire residence is shut off at the main service disconnect located ________________.

At the panel board

In two conductor cable, the ungrounded or hot wire is ______.

Black

The conductors that extend from the panel board to various outlets are called __________.

Branch circuits

A GFCI sensor will trip when the ____________.

Current in the neutral load is less than the current in the hot load.

In which division of the MasterFormat is electronic safety covered?

Division 28

A circle with two parallel lines drawn through it is the symbol normally used for ______________.

Duplex receptacles

Equipment schedules are part of the _________.

Electrical drawings

How many lighting fixtures are connected to circuit A-3 in the figure above?

Eleven Type A and two Type B

Which of the following cables should include a yellow color-coded conductor?

Five conductor cable

According to NEC Section 220.53, loads for which of the following appliances shall be permissible to apply a demand factor of 75%?

Fixed appliances

The operating temperature within a fixture is a primary factor in the selection of ___________.

Fixture wire

Which of the following describes Type FCC cable?

Flat Conductor Cable

An electric heat pump is a type of HVAC system that ___________.

Furnishes more energy than it consumes.

Any outlet that supplies power to a hot tub shall be

GFCI protected

Which of the following will detect a current imbalance as low as 4mA?

GFCI sensor

Size 4/0 wire has a _______________.

Greater cross-sectional area than size 3/0

A grounding wire may be which of the following colors?

Green (bare or green with yellow stripe)

One of the advantages of electric heat is that ___________.

Initial installation cost are less than other types of systems

Which of the following describes Type TC cable?

It consisted of two or more insulated conductors twisted together and covered with a nonmetallic jacket

In addition to being both flame- and moisture-resistant, what characteristics does type NMC cable have?

It is fungus- and corrosion-resistant

Which of the following is true of shielding in instrumentation circuits?

It is grounded at one end only

A grounding electrode conductor must be ___________________________-.

Made of copper, aluminum, or copper-clad aluminum

It is important to do which of the following when conductors are fed into long runs of conduit?

Make sure the wires are straight and do not cross over each other

Which of the following is an NEC-approved grounding electrode?

Metal underground water pipe in direct contact with the earth for 10'

In a residential pool area, receptacles ______________________________________.

Must be at least 6 feet from the inside walls of the pool

When used as a service-entrance cable, Type SE cable must be installed as specified in ___________.

NEC Article 230

Which section of the NEC covers equipment grounding and equipment grounding conductors?

NEC Article 250

Which sections of the NEC covers the installation of pools and spas?

NEC Article 680

The section of the NEC that lists the requirements for installing service disconnecting means is ______________.

NEC Section 230.70

Where can you find the ampacity of conductors for given conditions?

NEC Table 310.15 (B) (16) through (B) (21)

Type NMS cable is described as _________.

Nonmetallic sheathed cable

A pulling line is usually made of _____________ ____________________________.

Nylon or some other type of synthetic fiber

Which of the following are used extensively to show the arrangement of electrical service equipment?

One-line block diagram

Which of the following is indicated on a panel board schedule?

Panel mains

Which of the following is not shown with the cable markings?

Prohibited Uses

Which of the following must be mounted so that no point along the wall line is more than 24" from the receptacle?

Receptacles located above countertops in kitchens

Which of the following locations at dwelling units require GFCI protection?

Receptacles within garages

Which of the following circuits require a minimum of 20A of overcurrent protection?

Residential small appliance branch circuits

A cutaway view of a building or object is known as a ___________.

Sectional view

The location of the utility lines on the property are shown on the ___________.

Site plan

To control stairway lighting, a wall switch is required at each level when how many risers separate floor levels?

Six or more

Which of the following increases the flexibility of a wire?

Stranding

The letter inside the triangle in the figure above represents ____________________.

The fixture type

Why is there a letter R next to the outlet boxes for the Type C lighting fixtures in the figure above?

The fixtures are recessed

A feeder is used to connect ___________.

The main service panel and a sub panel

According to the figure above, where can information on Panel A be located?

The panel board schedule

According to the figure above, who is responsible for providing the electrical service?

The utility company

What is the number of conductors and the wire size specified for the feeder circuit supplying rooftop unit No. 1 in the power-riser diagram in the figure above?

Three No. 6 AWG

Traveler conductors are used to connect two __________.

Three-way switches

The scale of the drawings is contained in the _____________.

Title Block

On electrical drawings, a solid line with a solid circle at the end indicates wiring __________.

Turn down

According to the NEC, which of the following is required for the small appliance loads in each kitchen area?

Two 120V, 20A small appliance branch circuits

Which of the following is required to carry the lighting load for the residence in the figure above?

Two 15A circuits

To control a device from three locations, a four-way switch must be used with which of the following?

Two, three-way switches

The cable that is used for services, feeders, and branch circuits is _________.

Type MC

Which type of cable with a corrugated sheath has a maximum bend radius of 7 times the cable diameter?

Type MC

Which of the following must be supported at intervals of 6 feet or less?

Type MC cable

Which of the following types of cable may be installed in concealed locations?

Type NM and NMC

Romex is a trade name for ____________.

Type NM cable

Which of the following types of cable is suitable for dry locations only?

Type NM cable

When used as an outside service-entrance conductor, which of the following must be secured every 30"?

Type SE cable

Which of the following types of cable is suitable for direct burial?

Type UF

Notes are used in power-riser diagrams to identify the number, size, and ___________.

Type of conductors

To determine wiring methods is in compliance with the NEC, check construction methods and materials used, by referring to the ______________.

Wall sections

Changes to the drawing will be noted in the ________________-.

revision block


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