MIEJTP

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

When "B" is depressed

"M" is energized

When "D" is depressed

"M" is energized only while D is depressed

A meeting room that is at least 12 wide and that has a floor space of 215 sq ft shall have at least _____ receptacle(s) located in the floor.

1

The minimum size conductor that may be installed in parallel is ______ AWG.

1/0

The minimum vertical clearance for service drop conductors above a pedestrian sidewalk is _____ feet

10

A 208 volt, 3 phase heater draws 3598 watts. How many amperes does it draw?

10 amps (3598/1.732=2077 2077/208=10 amps)

The minimum service for a one-family dwelling shall be _______ amps.

100

A set of 4 inch PVC conduits is installed, with 4 500 kcmil THWN copper conductors in each conduit. When used as service entrance conductors shall have a maximum overcurrent device rating of _____ amps.

1200

A kiln rated at 4750 watts, 208 volts, 3 phase draws _______ amps.

13.2

A single non-motor operated appliance of 13.4 amps shall have overcurrent protection not to exceed ______ percent of appliance rating.

150

An AC system of 50 to 1000 volts shall be grounded if the maximum voltage to ground does not exceed _____ volts.

150

The underwater light fixture shall be installed at least _____ inches below the water level.

18

The minim size rigid metallic conduit for a commercial service rated for 150 amps, 120/240 volts, 3 wire, single phase, using THWN wire, is _______ inches.

The direction of rotation of the rotor for any three phase motor can be reversed by interchanging any ______ leads.

2

The minimum number of small appliance branch circuits required in a dwelling unit is ____.

2

The smallest size conductor permitted for a ground ring is #______ awg copper.

2

The code requires _______ cubic inches of free space for each #10 awg wire in an outlet box.

2.5

A laundry branch circuit shall be rate at ______ amps.

20

The maximum overcurrent protection for 8 current carrying #12 THHN conductors in a ½" conduit is ____ amperes.

20

The minimum dimensions for a concrete encased steel reinforcing bar electrode is ______ feet in length and _____ in diameter.

20 feet, ½ inch

Direct burial cables rated above ______ volts shall be shielded

2000

A box containing two 12/3 nm cables with ground, one device, and one internal cable clamp. What is the required cubic in capacity?

22.5

A 1" conduit contains three 3-wire circuits. All conductors are #10 TW. Each circuit consists of two phase conductors, one grounded conductor and one equipment grounding conductor. The maximum ampacity of each phase conductor is ______ amperes.

24

The inspection authority shall be notified not less than _____ hours before an inspection is needed.

24

The minimum storage height for the coupling means of an electronic vehicle (EV) charging station on an outdoor installation is _______ inches above grade.

24

Arc energy reduction. Where fuses rated at 1200 amps or higher are installed, ______ shall apply. (documentation of location)

240.67 (A) & (B)

A 15 or 20 amp receptacle shall be localted within _____ feet of a roof top air conditioner.

25

Metal light poles must have an accessible hand hole not less than _____ inches

2x4

Thermal insulation shall not be installed within _____ inches of recessed fixtures.

3

The maximum distance between supports for a 1" rigid nonmetallic conduit is ______ feet.

3 Feet

Where fuses are used for motor overload protection, a fuse shall be inserted in each ungrounded conductor and also in the grounded conductor if the supply system is ______ ac with one conductor grounded.

3-wire/3-phase

The size of the main bonding jumper for one 800 kcmil aluminum conductor, per phase, with an aluminum main bonding jumper is ______.

3/0

In a commercial building, the minimum size underground service entrance conductor for a 120/240 volt, single phase, 200 amp service is _______.

3/0 THWN copper

Auxiliary gutters shall not contain more than _____ current carrying conductors, with derating.

30

Edison base type fuses shall not exceed ______ amperes.

30

The voltage rating of communication cable shall be not less than _____ volts

300

The volt/ampere rating of a device that consumes 14.5 amperes on a 230 volt circuit is ______ watts.

3335 watts (14.5 amps X 230 volts)

In what section of the skilled trades regulation act can you find the apprentice ratio regulations?

339.5717

In what section of the skilled trades regulation act can you find the sign specialty contractor's license requirements?

339.5727

In what section of the skilled trades regulation act can you find the electrical contractor's license requirements?

339.5737

A junction box for the 120 volt wet niche fixture shall be at least _____ inches above the ground.

4

The maximum number of #6 AWG type THW conductors allowed in 1" PVC schedule 40 conduit is _______.

4

There are 6 conductors in a raceway connected to 75 degree C rated breakers. Each wire has a 70 amp load using THHN conductors. The minimum size conductors used are #_____ AWG.

4

What is the minimum size wire for a feeder to a mobile home, rated at 100 amps?

4

An expansion joint is required for nonmetallic conduit. When the temperature changes from -15 degrees F to 105 degrees F, the thermal expansion for 100 feet of rigid nonmetallic conduit is ______ inches.

4.87

A high impedance grounded systems are limited to systems operating at _____ volts or above.

480

A metal fence installed within _______ feet of the pool shall be bonded.

5

How often do you need to support 1 ¼ nonmetallic rigid conduit? (table 352.30)

5 Feet

A light fixture that weighs more than _____ pounds shall be supported independently of the fixture box.

50

Branch circuits larger than _____ amps shall supply only nonlighting loads.

50

The maximum number of switches permitted to disconnect a service is ______.

6

When two ground rods are installed, they shall be separated by a minimum of _____ feet.

6

A receptacle for laundry equipment shall be located within ______ feet of the intended location.

6 feet

A general purpose receptacle installed for a permanent pool is acceptable if installed on a pole _____ from the water. (680.22(a)1)

6'6"

Conductor fill of a conduit nipple 24" or less in length shall not exceed ______ percent of its total cross sectional area

60

The ampacity of NM cables is based on the ______ C degree column of the table 310.16

60

The minimum size service for a commercial building is ______ amps.

60

The ampacity of a #6 copper THHW conductor terminated in a switchboard rated at 75 degrees C is ______ amps.

65

There is a 10 hp, 230 volt, 3 phase motor, code letter G. The maximum standard rating inverse time circuit breaker permitted to serve as a branch circuit, short circuit and ground fault protection when the motor starts the load without difficulty is ______ amperes.

70

MI cable shall be secured within ______ inches of a panel.

72

A feeder in a single family dwelling supplies a load made up of 75 amps of electric space heating and 25 amps of air conditioning. The required ampacity of the feeder is ______ amperes.

75

Grounding electrode conductors size _____ AWG, must always be protected from physical damage by an enclosure.

8

In a nonmetallic box not larger than 2 ¼ inches by 4 inches, cable clamps are not needed if the NM cable is stapled within ______ inches of the box.

8

Measured from the bottom, a junction box installed near a pool shall be no less than _____ inches above the maximum water level.

8

An AC general use snap switch used to control a motor load shall not exceed _______% of the ampere rating of the switch at its rated voltage.

80

"A" is the ______ button. "B" is the ______ button. "C" is the ______ button.

A-Stop B-Start C-Overload

A fuse shall have a ______ of 0.07 seconds or less at the arcing current

Clearing time

GFCI protection shall be provided for outlets that supply ______ installed in dwelling units.

Dishwasher

Tamper resistant receptacles are required in ______.

Elementary and Preschool

The _____ exterior door of a dwelling unit is required to be illuminated

Garage Vehicle

In a house, a garbage disposal may be installed with a cord and attachment plug if the cord is _______.

Grounded

Short sections of ferrous metal raceway used for physical protection of the grounding electrode conductor shall be bonded at both ends to the ________.

Grounding electrode conductor

Fixed lighting units may be on a 30 amp branch circuit if they are _____ duty lamp holders.

Heavy

Furnaces shall be supplied by a(n) _______ branch circuit.

Individual

Disconnecting mean shall be provided on the supply side of all cartridge fuses of any voltage where _______.

Is accessible to other than qualified persons

A GFCI protected _____ receptacle for the pump motor may be installed on the south wall of a dwelling unit.

Locking Type

Where a PV systems DC circuits run inside a building, they shall be contained in _______.

Metal Raceway

The feed to the wet-niche fixture shall me installed in _______.

Rigid Brass Conduit

Direct burial cables emerging from the ground and subject to physical damage shall be installed in ______.

Rigid Metal Conduit

Round boxes shall not be used where conduits or connectors fasten to the _____ of the box.

Side

Type "S" adapters are installed in Edison base fuse holders _______.

To limit the size of the fuse to be installed.

Type ______ cable is not permitted for service enterance.

UF

Type _______ insulated conductors may be used in direct burial applications.

UF

A ______ receptacle is required in a bay of a car wash (406.9(b)(1)exception)

Weatherproof

Where raceways are installed in wet locations above grade, the interior of these raceways shall be considered a _______ location.

Wet

When a conduit is used for physical protection for a cable, ______ is required.

a fitting on the end of the conduit

Identify the correct low voltage circuit classification based on the drawing.

class 1 power limited

A(n) ______ receptacle may be included on a small appliance branch circuit.

electric clock or gas range

A general purpose receptacle shall not be installed on the _______.

fence directly south of the pool

Boxes used in the floor shall be ______.

listed for the installation

A screw connecting the neutral bar of a grounded system to the service equipment enclosure is called the ______.

main bonding jumper

Work installed by an electrical contractor can be concealed after ______.

obtaining inspection approval

An electrical device which consists of a frame, plunger, and coil, and is used to create a push or pull action is called a(n) ________.

solenoid


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