210-213 2nd Year IEC

Refer to figure 210.15. The minimum working clearance at point Z is ___________ feet. The panel is 120/240V 3-PH 4W (Z is panel to panel left being 4inch CMU WALL the other side being 8inch CMU WALL)

B. 4

A door chime is an example of a device

False

Branch circuits and feeder conductors shall not be installed in the same ________ with service conductors 1. raceway 2. cable 3. enclosure

1 & 2

A fluorescent luminaire is an example of a device

A. False

The conductors and equipment required or permitted by this Code and shall be accepted only if _______________ (Hint: Think in code terms)

Approved

The electrical equipment shown at IV in figure 201.1 is readily accessible?

NO

Refer to figure 205.10. The 400A safety switch contains 350-amp fuses. the raceways used between the switch and the 3-phase motor contain 250 k-cmil conductor. The min-size of the EGC between the safety switch and the motor is___________ AWG?

a. 3

Which pf the following is not a standard circuit breaker size?

a. 75

Equipment intended to interrupt current at other than fault levels may have it's interrupting rating implied in other rating such as _________

a. Horsepower or locked rotor current

A conduit contains four dedicated circuits run from a single-phase panel. The circuits are controlled by breakers 1,3 5, and 7

a. One. Based on the OOCPD of the largest circuit in the conductor

The conductor shown at point IV in Figure 205.1

a. an equipment grounding conductor

A hallway in a large custom home is 90 feet in length. The minimum number of convince receptacles that can be installed per the NEC is _________

b. 1

The minimum feeder-circuit conductor size. Before the application of any adjustment or correction factors, shall have an allowable ampacity ≥ than the noncontiguous load plus ___________ percent of the continuous load

b. 125

(Taps are made in Pull Box 2 to feed the Fused Safety Switches for the three loads.) Refer to Figure 204.7. 300 kcmil conductors are installed between the 300-Amp breaker and Pull Box 2. The distance between Pull Box 2 and FD #1 is 12 feet. The nameplate on Load #1 indicates that it will draw 63 amps. The smallest size wire permitted for the tap conductors between Pull Box 2 and FD #1 (Fused Disconnect for Load #1) is ___ AWG. (Don't forget that the switches have 75ºC lugs so you will select your wire from the 75ºC column)

b. 3

A NEMA Type ___________ enclosures a degree of protection against windblown dust. Refer to NEC Table 110.28

b. 3

Service conductors shall have a clearance of not less than ________ feet from windows, doors or similar locations that open

b. 3

Where installed in a 3-pole , 600-volt fused safety switch, the minimum # of fuses required to protect a 208-volt, 3-ph 3-wire branch circuit is

b. 3

When calculating the size of service the dryer shall either be ________ VA or the name-plate whichever is greater

b. 5,000

Unless specified otherwise. live parts of electrical equipment operating at _____ Volts or more shall be guarded

b. 50

Within sight is visible and no more than ___ feet from the object.

b. 50

a dwelling service entrance is rated at 150 A and the service-entrance conductors are size 2/0 AWG aluminum with 75*C insulation and terminations. The minimum size copper grounding electrode conductor perm to the metal underground water pipe is ______________ AWG

b. 6

Where Multiple rod, pipe, or plate electrodes are installed. they shall not be less than 6' apart

b. 6'

At 180VA per outlet, how many outlets can be installed on a 20-A circuit (120V) if the circuit loading is remain within its ratings

b. 8

The minimum feeder load for a 40 foot long show is ____________ VA

b. 8000

Which of the statements below is an example of mandatory language used in the NEC

b. Terminals for more than one conductor and terminals used to connect aluminum shall be so identified

the grounding electrode conductor shall be?

b. copper, aluminum, or copper-clad aluminum

An air-handling unit for a real-estate office building is to be installed in the attic. Which of the following is required to be installed in the attic near the unit.

both a and b

the smallest standard size for fuse?

c. 1

The requirements for a minimum number of branch circuits in a dwelling is found in ___________

c. 210.11

The minimum clearance at ? (4-inch CMU Wall) is __________ inches where a 120/240V 1-PH 3-wire panel board is installed as shown in Figure 201.17

c. 36

The maximum size GEC required from the service equipment to the rebar in the bottom of the grade beam (poured concrete for a building) is _______ AWG

c. 6

Refer to figure 201.20. The tops of both panels cases are at the same height above the floor. The bottom of the 277/480-V panel at the 38" AFF. The ceiling can be no less than___________ AFF

c. 7'-2"

A 208-V motor circuit can be protected with safety switch that is rated at _________ V

c. either a or b

For a one family dwelling, the service disconnecting means shall have a rating of not less than ___ Amperes, 3-wire

d. 100

Which of the following is not allowed to act as a concrete electrode?

d. 20 feet of 6# AWG bare copper

120/240v, single-phase, three wire service panel is fed with a three 1 AWG copper conductors. The minimum size grounding electrode conductors connected to building steel is _____________________ AWG

d. 6

For a single-family dwelling with a total of 3500 square feet of occupied area, the minimum number of 15-ampere lighting branch circuits is ___.

d. 6

Refer to Figure 205.8 shown above. Where not subject to physical abuse, the smallest perm GEC to the ground rod form Panel LC is ____________

d. 6

Refer to the "office building" hallway shown above in Figure 108.020. The NEC requires____________ receptacles to be installed in the hallway. The hallway is 63 feet long.

d. None are required

The code rules and provisions are enforced by _____________. (Hint: think of a inspector)

d. all of these

the authority having jurisdiction has the responsibility of _____________________ (Hint: think of a inspector)

d. all of these

Ground-fault protection is required for a feeder disconnect if __________

d. all of these above

A continuous white or grey covering on a conductor shall be used for the _______ conductor

d. grounded

Two loads to be connected to a branch circuit. Load #1 will draw 35A and will operate continuously. Load #2 is non-continuous and will pull 42 amps. What is the minimum THWN/THHN copper wire size permitted for a branch circuit? The branch circuit is connected to a circuit breaker with a 75*C rating

e. 3 AWG

Figure 201.71 shows the plan view of a room in a house. A receptacle ___________ required to be installed in the 18" allspice in the NW corner of the plan

IS NOT

Refer to Figure 203.4. For 120/240-volt 1-phase,3-wire service, the minimum clearance at 3 is _______. Hint this area is accessible to auto-mobiles but not trucks.

a. 12'

what Is the maximum allowable Voltage between conductors on a branch circuit supplying lighting fixtures (luminaries) in a residence

a. 120V

Section 110.14 (C) states: "Conductors with tempterature ratings higher than the specified for terminations shall be permitted for A-adjustment, correction or both. This means that when an A correction for a THHN/THWN conductor is required due to temperature, the corrected A is calculated by multiplying the Ampacity listed in the 90* column (typically from Table 310.16 times correction factor. This is a __________ statement because a THHN/THWN conductor has a maximum temp rating of _______)

True 90*

The minimum number of receptacles permitted by the new to be installed along a 12-foot long kitchen countertop in a restaurant

a. 0

Article 220 requires that each single or multiple receptacle on a single start to be calculated at ___________ VA

a. 180