Quiz 2

55問 • 2年前

問題一覧

Premises wiring shall not be electrically connected to a supply system unless the latter contains, for any grounded conductor of the interior system, a corresponding conductor that is grounded.

Connection to Grounded System

An insulated conductor that is intended for use as a grounded conductor, where contained within a flexible cord, shall be identified by a white or gray outer finish

Flexible Cords

All devices, excluding panelboards, provided with terminals for the attachment of conductors and intended for connection to more than one side of the circuit

Device Terminals

No grounded conductor shall be attached to any terminal or lead so as to reverse the designated polarity

Polarity of Connections

Branch circuits recognized by this article shall be rated in accordance with the maximum permitted ampere rating or setting of the overcurrent device

Rating

Multiwire branch circuits shall supply only _____________

Line-to-Neutral Loads

In dwelling units and guest rooms or guest suites of hotels, motels, and similar occupancies, the voltage shall not exceed 230 volts

Occupancy Limitation

Where connected to a branch circuit having a rating in excess of 20 amperes, __________ shall be of the heavy-duty type. A heavy-duty lampholder shall have a rating of not less than 660 watts if of the admedium type, or not less than 750 watts if of any other type.

Lampholders

A cord connector that is supplied by a permanently connected ____________ shall be considered a receptacle outlet.

Cord Pendants

A receptacle outlet shall be installed wherever flexible cords with attachment plugs are used. Where flexible cords are permitted to be permanently connected, receptacles shall be permitted to be omitted for such cords.

Cord Connections

Appliance receptacle outlets installed in a dwelling unit for specific appliances, such as laundry equipment, shall be installed within 1 800 mm of the intended location of the appliance.

Appliance Outlets

In dwelling units, at least one receptacle outlet shall be installed in __________ within 900 mm

Bathrooms

For a one-family dwelling and each unit of a two- family dwelling that is at grade level, at least one receptacle outlet accessible at grade level and not more than 2 000 mm above grade

Outdoor Outlets

An outlet supplying luminaire(s) [lighting fixture(s)] shall be calculated based on the maximum volt-ampere rating of the equipment and lamps for which the luminaire(s) [fixture(s)] is rated.

Luminaires (Lighting Fixtures)

Outlets for heavy-duty lampholders shall be calculated at a minimum of 600 volt-amperes.

Heavy-Duty Lampholders

Sign and outline lighting outlets shall be calculated at a minimum of 1200 volt-amperes for each required branch circuit

Sign and Outline Lighting

suitable for use underground; other raceways round in cross section, listed for underground use, and embedded in earth or concrete.

Electrical Duct

heat transfer capability through a substance by conduction. It is the reciprocal of thermal conductivity and is designated Rho and expressed in the units °C-cm/watt.

Thermal Resistivity

For raceways containing conductors of 22 mm2 or larger, and for cables containing conductors of 22 mm2 or larger

Minimum Size

In pull boxes or junction boxes having any dimension over 1 800 mm

Conductors in Pull or Junction Boxes

A fabricated assembly of insulated conductors in a flexible metallic enclosure.

Armored Cable, Type AC

An assembly of parallel conductors formed integrally with an insulating material web specifically designed for field installation in surface metal raceway.

Flat Cable Assembly, Type FC

A protective layer that is installed between the floor and Type FCC flat conductor cable to protect the cable from physical damage and may or may not be incorporated as an integral part of the cable.

Bottom Shield

A connector designed to join Type FCC cables without using a junction box.

Cable Connector

A complete wiring system for branch circuits that is designed for installation under carpet squares.

FCC System

A single or multiconductor solid dielectric insulated cable rated 2 001 volts or higher.

Medium Voltage Cable, Type MV

A factory assembly of one or more insulated circuit conductors with or without optical fiber members enclosed in an armor of interlocking metal tape, or a smooth orcorrugated metallic sheath. 3.30

Metal Clad Cable, Type MC

The ___________ shall be of copper, aluminum, or copper-clad aluminum, solid or stranded. The minimum conductor size shall be 18 AWG copper and 3.5 mm2 (2.0 mm dia.) aluminum or copper-clad aluminum.

Conductors

Insulated conductors enclosed within an overall nonmetallic jacket.

Type NM

Insulated conductors enclosed within an overall, corrosion resistant, nonmetallic jacket.

Type NMC

Insulated power or control conductors with signaling, data, and communications conductors within an overall nonmetallic jacket.

Type NMS

A factory assembly of two or more insulated conductors, with or without associated bare or covered grounding conductors, under a nonmetallic jacket.

Power and Control Tray Cable, Type TC

A threadable raceway of circular cross section designed for the physical protection and routing of conductors and cables and for use as an equipment grounding conductor when installed

Rigid Metal Conduit (RMC)

A raceway of circular cross section made of helically wound, formed, interlocked metal strip.

Flexible Metal Conduit (FMC)

A raceway of circular cross section having an outer liquidtight, nonmetallic,sunlight-resistant jacket over an inner flexible metal core with associated couplings, connectors, and fittings for the installation of electric conductors

Liquidtight Flexible Metal Conduit (LFMC)

A raceway of circular cross section of various type

Liquidtight Flexible Nonmetallic Conduit (LFNC)

An unthreaded thinwall raceway of circular cross section designed for the physical protection

Electrical Metallic Tubing (EMT)

A raceway that is circular in cross section, flexible, metallic, and liquidtight without a nonmetallic jacket.

Flexible Metallic Tubing (FMT)

A nonmetallic pliable corrugated raceway of circular cross section with integral or associated couplings, connectors, and fittings for the installation of electric conductors.

Electrical Nonmetallic Tubing (ENT)

Flame retardant, nonmetallic enclosures with removable covers for housing and protecting electric wires, cable, and busbars in which conductors are laid in place after the wireway has been installed as a complete system.

Nonmetallic Auxiliary Gutters

A nonmetallic pliable corrugated raceway of circular cross section with integral or associated couplings, connectors, and fittings for the installation of electric conductors.

Electrical Nonmetallic Tubing (ENT)

A grounded metal enclosure containing factory- mounted, bare or insulated conductors, which are usually copper or aluminum bars, rods, or tubes.

Busway

An assembly of insulated conductors with fittings and conductor terminations in a completely enclosed, ventilated protective metal housing. Cablebus is ordinarily assembled at the point of installation from the components furnished

Cablebus

A single enclosed tubular space in a cellular metal floor member, the axis of the cell being parallel to the axis of the metal floor member.

Cell

A transverse raceway for electric conductors, providing access to predetermined cells of a cellular metal floor, thereby permitting the installation of electric conductors from a distribution center to the cells.

Header

Sheet metal troughs with hinged or removable covers for housing and protecting electric wires and cable and in which conductors are laid in place after the wireway has been installed as a complete system.

Metal Wireways

Loads not exceeding the ampere and voltage ratings of the switch. Where particular load characteristics or limitations are specified as a condition of the listing, those restrictions

Inductive Loads

A manufactured assembly designed to support and energize luminaires (lighting fixtures) that are capable of being readily repositioned on the track.

Lighting Track

A length of pipe including pumps, valves, flanges, control devices, strainers, and/or similar equipment for conveying fluids.

Pipeline

An electrical device that converts single-phase power to 3-phase electrical power.

Phase Converter

A device that consists of a rotary transformer and capacitor panel(s) that permits the operation of 3- phase loads from a single-phase supply.

Rotary-Phase Converter

A device without rotating parts, sized for a given 3- phase load to permit operation from a single-phase supply.

Static-Phase Converter

The voltage calculated on the basis of 2 volts per cell for the lead-acid type and 1.2 volts per cell for the alkali type.

Nominal Battery Voltage

A ____________________ is one that has no provision for the addition of water or electrolyte or for external measurement of electrolyte specific gravity.

Sealed Cell or Battery

A battery comprised of one or more rechargeable cells of the lead-acid, nickel-cadmium, or other rechargeable electrochemical types.

Storage Battery

AC2 - LM2 (Reviewer)

ユーザ名非公開 · 38問 · 2年前

AC2 - LM2 (Reviewer)

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ユーザ名非公開

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HIRAC

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MSE Reviewer

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Chapter 6

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Finals

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Fluids Finals

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問題一覧

Premises wiring shall not be electrically connected to a supply system unless the latter contains, for any grounded conductor of the interior system, a corresponding conductor that is grounded.

Connection to Grounded System

An insulated conductor that is intended for use as a grounded conductor, where contained within a flexible cord, shall be identified by a white or gray outer finish

Flexible Cords

All devices, excluding panelboards, provided with terminals for the attachment of conductors and intended for connection to more than one side of the circuit

Device Terminals

No grounded conductor shall be attached to any terminal or lead so as to reverse the designated polarity

Polarity of Connections

Branch circuits recognized by this article shall be rated in accordance with the maximum permitted ampere rating or setting of the overcurrent device

Rating

Multiwire branch circuits shall supply only _____________

Line-to-Neutral Loads

In dwelling units and guest rooms or guest suites of hotels, motels, and similar occupancies, the voltage shall not exceed 230 volts

Occupancy Limitation

Lampholders

A cord connector that is supplied by a permanently connected ____________ shall be considered a receptacle outlet.

Cord Pendants

Cord Connections

Appliance receptacle outlets installed in a dwelling unit for specific appliances, such as laundry equipment, shall be installed within 1 800 mm of the intended location of the appliance.

Appliance Outlets

In dwelling units, at least one receptacle outlet shall be installed in __________ within 900 mm

Bathrooms

For a one-family dwelling and each unit of a two- family dwelling that is at grade level, at least one receptacle outlet accessible at grade level and not more than 2 000 mm above grade

Outdoor Outlets

An outlet supplying luminaire(s) [lighting fixture(s)] shall be calculated based on the maximum volt-ampere rating of the equipment and lamps for which the luminaire(s) [fixture(s)] is rated.

Luminaires (Lighting Fixtures)

Outlets for heavy-duty lampholders shall be calculated at a minimum of 600 volt-amperes.

Heavy-Duty Lampholders

Sign and outline lighting outlets shall be calculated at a minimum of 1200 volt-amperes for each required branch circuit

Sign and Outline Lighting

suitable for use underground; other raceways round in cross section, listed for underground use, and embedded in earth or concrete.

Electrical Duct

heat transfer capability through a substance by conduction. It is the reciprocal of thermal conductivity and is designated Rho and expressed in the units °C-cm/watt.

Thermal Resistivity

For raceways containing conductors of 22 mm2 or larger, and for cables containing conductors of 22 mm2 or larger

Minimum Size

In pull boxes or junction boxes having any dimension over 1 800 mm

Conductors in Pull or Junction Boxes

A fabricated assembly of insulated conductors in a flexible metallic enclosure.

Armored Cable, Type AC

An assembly of parallel conductors formed integrally with an insulating material web specifically designed for field installation in surface metal raceway.

Flat Cable Assembly, Type FC

A protective layer that is installed between the floor and Type FCC flat conductor cable to protect the cable from physical damage and may or may not be incorporated as an integral part of the cable.

Bottom Shield

A connector designed to join Type FCC cables without using a junction box.

Cable Connector

A complete wiring system for branch circuits that is designed for installation under carpet squares.

FCC System

A single or multiconductor solid dielectric insulated cable rated 2 001 volts or higher.

Medium Voltage Cable, Type MV

A factory assembly of one or more insulated circuit conductors with or without optical fiber members enclosed in an armor of interlocking metal tape, or a smooth orcorrugated metallic sheath. 3.30

Metal Clad Cable, Type MC

The ___________ shall be of copper, aluminum, or copper-clad aluminum, solid or stranded. The minimum conductor size shall be 18 AWG copper and 3.5 mm2 (2.0 mm dia.) aluminum or copper-clad aluminum.

Conductors

Insulated conductors enclosed within an overall nonmetallic jacket.

Type NM

Insulated conductors enclosed within an overall, corrosion resistant, nonmetallic jacket.

Type NMC

Insulated power or control conductors with signaling, data, and communications conductors within an overall nonmetallic jacket.

Type NMS

A factory assembly of two or more insulated conductors, with or without associated bare or covered grounding conductors, under a nonmetallic jacket.

Power and Control Tray Cable, Type TC

A threadable raceway of circular cross section designed for the physical protection and routing of conductors and cables and for use as an equipment grounding conductor when installed

Rigid Metal Conduit (RMC)

A raceway of circular cross section made of helically wound, formed, interlocked metal strip.

Flexible Metal Conduit (FMC)

Liquidtight Flexible Metal Conduit (LFMC)

A raceway of circular cross section of various type

Liquidtight Flexible Nonmetallic Conduit (LFNC)

An unthreaded thinwall raceway of circular cross section designed for the physical protection

Electrical Metallic Tubing (EMT)

A raceway that is circular in cross section, flexible, metallic, and liquidtight without a nonmetallic jacket.

Flexible Metallic Tubing (FMT)

A nonmetallic pliable corrugated raceway of circular cross section with integral or associated couplings, connectors, and fittings for the installation of electric conductors.

Electrical Nonmetallic Tubing (ENT)

Nonmetallic Auxiliary Gutters

A nonmetallic pliable corrugated raceway of circular cross section with integral or associated couplings, connectors, and fittings for the installation of electric conductors.

Electrical Nonmetallic Tubing (ENT)

A grounded metal enclosure containing factory- mounted, bare or insulated conductors, which are usually copper or aluminum bars, rods, or tubes.

Busway

Cablebus

A single enclosed tubular space in a cellular metal floor member, the axis of the cell being parallel to the axis of the metal floor member.

Cell

Header

Metal Wireways

Loads not exceeding the ampere and voltage ratings of the switch. Where particular load characteristics or limitations are specified as a condition of the listing, those restrictions

Inductive Loads

A manufactured assembly designed to support and energize luminaires (lighting fixtures) that are capable of being readily repositioned on the track.

Lighting Track

A length of pipe including pumps, valves, flanges, control devices, strainers, and/or similar equipment for conveying fluids.

Pipeline

An electrical device that converts single-phase power to 3-phase electrical power.

Phase Converter

A device that consists of a rotary transformer and capacitor panel(s) that permits the operation of 3- phase loads from a single-phase supply.

Rotary-Phase Converter

A device without rotating parts, sized for a given 3- phase load to permit operation from a single-phase supply.

Static-Phase Converter

The voltage calculated on the basis of 2 volts per cell for the lead-acid type and 1.2 volts per cell for the alkali type.

Nominal Battery Voltage

A ____________________ is one that has no provision for the addition of water or electrolyte or for external measurement of electrolyte specific gravity.

Sealed Cell or Battery

A battery comprised of one or more rechargeable cells of the lead-acid, nickel-cadmium, or other rechargeable electrochemical types.

Storage Battery