1st semester Final
3.) A 12' length of lighting track is installed in the master bedroom of a one-family dwelling. Per NEC® 220.43(B), how many VA must be allocated for the lighting track when determining the calculated load on the service? Select one: a.0 b.150 c.1800 d.900
A 0
2.) When installing #1 RHH conductors in a conduit, each conductor has a value of ___ when calculating conduit fill. Select one: a.0.2660 square inches b.0.582 square inches c.0.1901 square inches d.0.492 square inches
A 0.2660 square inches
11.) The Code permits a ___" maximum space between the panel enclosure ("can") and the panel cover as shown above in Figure 210.12. Select one: a.1/4 b.1/8 c.1/2 d.3/8
A 1/4
11.) What is the maximum allowable voltage between conductors on a branch circuit supplying lighting fixtures (luminaires) in a residence? Select one: a.120 volts b.250 volts c.150 volts d.240 volts
A 120 volts
Quiz 216 1.) Vertical runs of metal wireways shall be securely supported at intervals not exceeding ___ feet and shall not have more than one joint between supports. Select one: a.15 b.10 c.5 d.3
A 15
Quiz 214-215 1.) What is the circular mil area of a 3/0 AWG conductor? Select one: a.167,800 b.211,600 c.52,620 d.105,600
A 167,800
10.) A 300-amp breaker supplies power to a 225 KVA 480 - 120/208-volt, 3Ø, 4-W transformer. The transformer feeds a panelboard with a 200-amp main breaker. The length of the secondary conductors between the transformer and the main is 13 feet. These conductors must be at least ___ in size. Select one: a.250 kcmil b.350 kcmil c.2/0 AWG d.4/0 AWG
A 250 kcmil
6.) When a conduit containing service entrance conductors runs beneath a building, what is the minimum depth of concrete required to cover a conduit for it to be considered "outside" the building? Select one: a.2 in. b.18 in. c.12 in. d.6 in.
A 2in
5.) A string of 2' x 4' lay-in fluorescent luminaires is to be connected by "looping" the wiring method. Between luminaires, the raceway entries are 6' apart. The length of the cable (or raceway) from the box to the first luminaire is 7 feet. Figure 208.3 LFNC is the wiring method to be used above in Figure 208.3. The maximum distance permitted between support #1 and support #2 is ___ feet. Select one: a.3 b.6 c.41/2 d.1 e.10
A 3
7.) The minimum working clearance at Point X in Figure 201.15 is ___ feet. The panel is 277/480-volt, 3Ø, 4W. Select one: a.31/2 b.3 c.4
A 3 1/2
10.) Where splices, angle or U pulls are made, the distance between each raceway entry inside the box and the opposite wall shall not be less than ___ times the trade size of the largest raceway, plus the trade size of all other raceways entering on the same wall in the same row. Select one: a.6 b.2 c.4 d.8
A 6
7.) flexible cord connection is made directly to the load end terminals of a busway plug-in device. The maximum length of this cord to a tension take-up device is ___ feet. Select one: a.6 b.3 c.4 d.5
A 6
12.) The grounding and bonding for a project is sometimes shown as a(n) ___ drawing. Select one: a.detail b.elevation c.section d.orthographic
A Detail
8.) A conduit contains four dedicated circuits run from a single-phase panel. The circuits are controlled by breakers 1, 3, 5 and 7. How many equipment grounding conductors should be installed in the conduit? Select one: a.One. Based on the overcurrent protective device of the largest circuit in the conduit. b.One. Based on the ampacities of all four circuits added together. c.Two. One for each of the phases (A and B) in the conduit. d.Four. One for each of the four circuits in the conduit.
A One. based on the overcurrent protective device of the largest circuit in the conduit.
16.) Panel schedules list all but which of the following? Select one: a.circuit lengths b.circuit numbers c.equipment to be served d.breaker sizes
A circuit lengths
3.) Wiring methods permitted in ducts or plenums specifically fabricated to transport environmental air include ___. Select one: a.electrical metallic tubing b.armored cable (BX) c.flexible conduit methods of any length d.nonmetallic-sheathed cable
A electrical metallic tubing
13.) Per the Wendy's prints, all circuit breakers shall be ___. Select one: a.of the bolt-on type b.shunt-type c.a minimum of 10,000 amps interrupting rated d.thermal magnetic
A of the bolt-on type
10.) In a dwelling, a single receptacle installed for the cord connection to a dishwasher located 2 feet from a kitchen sink but below a countertop requires GFCI protection. Select one: a.True b.False
A true
Midterm question 1 1.) Rebar size is indicated in half of an inch a.) true b.) false
B
4.)If the boxes in the wall exceed 24" horizontally but exceed a total of ___ square inches in the same cavity firestopping must be installed. Select one: a.50 b.100 c.68 d.220
B 100
35.) What is the elevation of the roof drains on the lower roof at the Veterinary Center? Select one: a.14' 4" b.14' c.13' 6" d.25' 6"
B 14
7.) Service conductors shall have a clearance of not less than ___ feet from windows, doors, or similar locations that open. Select one: a.5 b.3 c.10 d.2 e.6
B 3
8.) What minimum size schedule 80 PVC conduit is required for a 65' run? The conduit will contain three 350 kcmil, one 3/0, and one #2 THHN/THWN conductors. Select one: a.2.5 b.3 c.4 d.5 e.3.5
B 3
40.) Approximately how far is the cook center panel from the main distribution panel at Wendy's? Select one: a.5' b.35' c.75' d.25'
B 35'
12.) A 21/2" rigid metal conduit enters the back of a pull box that has a removable cover on the opposite side. The raceway encloses four 4/0 AWG THHN copper conductors and one 4 AWG equipment grounding conductor. The minimum depth (distance from the entry wall to the cover) for this pull box is ___ inch(es). Select one: a.15 b.4 c.16 d.8 e.20
B 4
25.) How many duplex receptacles are to be installed in Exam Rooms 3? (Note that this symbol represents a duplex receptacle mounted at a height other than 18" AFF.) Select one: a.5 b.4 c.3 d.2
B 4
30.) The calculated load for the Wendy's Restaurant site lighting is ___ KW. Select one: a.4.6 b.6.5 c.2.8 d.2.2
B 6.5
4.) What is the MINIMUM bend radius for 1 in. diameter corrugated sheath MC cable? Select one: a.15 in. b.7 in. c.12 in. d.10 in.
B 7 in
14.) Per the Wendy's prints, the Room Finish Schedule for wall coverings, ceiling heights and types is found on ___. Select one: a.A-8 b.A-1 c.S-1 d.A-3
B A-1
8.)___ is an integrated, electronically managed system that aligns all working drawings, structural drawings, and shop drawings in a consistent system. Select one: a.CAD b.BIM c.LEED d.IBC
B BIM
13.) Branch circuits in dwelling units shall supply only loads within that dwelling unit or loads associated only with that dwelling unit. Branch circuits required for the purpose of lighting, ___, or other needs for public or common areas shall not be supplied from a dwelling-unit panelboard.I. communications II. signal III. central alarm Select one: a.II only b.I, II and III c.III only d.I only
B I II and III
6.) Refer to Figure 205.12. The equipment grounding conductor is run on the inside of the FMC and the length of the flex is 8 feet. Is this a Code violation? Select one: a.Yes b.No
B No
11.) A ___ is a scaled view created by passing a cutting plane horizontally or vertically through a portion of a building or other item to show features that are not apparent on the plan views. Select one: a.perspective b.section c.elevation d.detail
B Section
3.) Concrete masonry unit sizes are specified by ___. Select one: a.L x W x H b.W x H x L c.H x L x W d.L x H x W
B WxHxL
31.) A(n) ___ is an HVAC air distribution outlet that is used to deflect and mix air. Select one: a.duct detector b.air diffuser c.exhaust fan d.damper
B air diffuser
22.) In the Veterinary Center, the F-6 light fixture is ___. Select one: a.ceiling-mounted b.an emergency light c.a pendant d.a lay-in troffer
B an emergency light
5.) The NEC® considers an installation inside a building to be a ___ location. Select one: a.damp b.dry c.wet
B dry
Quiz 212-213 1.) Where installed in a metal raceway, all feeder conductors sharing a common neutral conductor shall be ___. Select one: a.shielded b.enclosed within the same raceway c.insulated for 600 volts d.the same color
B enclosed within the same raceway
39.) The 21/2" conduit feeding the cookcenter panel at Wendy's and the 6" schedule 40 PVC beverage conduits will need to be carefully coordinated since they will cross. Select one: a.True b.False
B false
14.) Where fixed glass panels (i.e., windows or non-sliding parts of doors) do not permit installation of wall-mounted receptacles, ___ are typically used to satisfy the receptacle spacing requirements of NEC® 210.52(A)(1) and (2). Select one: a.quad receptacles b.floor-mounted receptacles c.GFCI-protected receptacles d.extension cords
B floor- mounted receptacles
12.) A 4 AWG equipment grounding conductor can be marked with ___ tape. Select one: a.gray b.green c.orange d.none of these
B green
29.) On what sheet are found the details of site lighting pole foundations for the Wendy's Restaurant? Select one: a.E-1 b.Site c.C-3 d.E-7
B site
26.) Which is NOT a true statement about the utilities in the parking lot of Wendy's? Select one: a.The storm sewer and the sanitary sewer will cross over each other. b.The water line and the gas line will cross over each other. c.The water line and the storm sewer will cross over each other. d.The gas line and the storm sewer will cross over each other.
B the water line and the gas line will cross over each other
3.) In NEC® Chapter 3, Wiring Methods and Materials, requirements for splices and taps can be found in the ___ section. Select one: a.xxx.12 b.xxx.56 c.xxx.20 d.xxx.10
B xxx.56
6.) A feeder needs to be installed to supply power to a load that will draw 800 amps. The circuit breaker will be rated at 800 amps. There will be 3 parallel conduits run for the feeder. You will need to install at least ___ AWG or kcmil conductors in each conduit. Select one: a.350 b.4/0 c.300 d.3/0 e.250
C 300
5.) If festoon lighting exceeds ___ feet, the conductors shall be supported by messenger wire. Select one: a.15 b.20 c.40 d.25
C 40
15.) In straight pulls, the length of the box shall be not less than ___ times the trade diameter of the largest raceway for conductors 4 AWG and larger. Select one: a.4 b.6 c.8 d.12
C 8
7.)Typically, the ___ draws the equipment, mechanical, electrical, and plumbing plans. Select one: a.mechanical engineer b.electrician c.architect d.general contractor
C Architect
15.) Per the Wendy's prints, what item is located in the kitchen just to the right of the cooler/freezer door? Select one: a.trash receptacle b.storage unit c.bun racks d.first aid kit
C Bun racks
19.) Which of the following grounding electrodes are shown on the Wendy's restaurant project drawings? Select one: a.building steel column b.metal water pipe c.copper ground rod d.all of these
C Copper ground rod
2.) Preplanning the wiring installed in concrete results in the saving of ___. Select one: a.labor and wood materials b.OSHA violations c.cost and labor d.all the above
C Cost and labor
5.)FRP stands for ___. Select one: a.Fire-Resistant Panel b.Ferrous Refaced Plastic c.Fiber-Reinforced Plastic d.Frost Retardant Polymer
C Fiber-Reinforced plastic
23.) The Veterinary Center second floor lighting is powered from circuits ___. Select one: a.LP3 and LP4 b.LP3 only c.LP3, LP4, GP2 d.LP4 only
C LP3, LP4, GP2
In a construction drawing project, an architectural firm works directly with the ___ to design a project. Select one: a.apprentice b.journeyman c.owner d.foreman
C Owner
9.)You can deviate from the specs if ___. Select one: a.there is a more efficient method b.the specified material is not available c.the architect provides written approval d.the GC verbally accepts the change
C The architect provides written approval
4.) The purpose of the NEC® is the practical safeguarding of ___ from hazards arising from the use of electricity. Select one: a.persons b.property c.both a & b d.neither a nor b
C both a & b
27.) Type "C" drawings are ___. Select one: a.contour drawings b.culvert drawings c.civil drawings d.concrete drawings
C civil drawings
38.) What is the exterior covering of the 2nd floor exterior wall on the east side of the indoor yard/boarding area of the Veterinary Center? Select one: a.4" masonry veneer b.wood siding c.composite aluminum exterior cladding d.8" CMU
C composite aluminum exterior cladding
21.) The information in Annex C of the NEC® is about ___. Select one: a.outside branch circuits b.service calculations c.conduit and tubing fill tables d.ampacities
C conduit and tubing fill tables
7.) Refer to Table 8 in Chapter 9 in the NEC®. The ___ of a conductor is measured in mm or in. Select one: a.length b.area c.diameter d.resistance e.stranding
C diameter
6.) NEC® Section 110.9 requires that electrical equipment ___. Select one: a.have ground-fault circuit-interrupter circuit breakers b.be oversized to reduce damage caused by ground faults c.intended to interrupt fault current be so rated d.be constructed to minimize the effects of direct shorts
C intended to interrupt fault current be so rated
32.) The terminal device in a hydronic system (boiler) is a ___. Select one: a.vent b.grille c.radiator d.register
C radiator
2.) The NEC® requires the ampacity of a feeder shall be equal to, or greater than ___. Select one: a.the connected load b.the sum of all branch circuit overcurrent protection devices c.the calculated load after demand factors have been applied d.125% of the overcurrent protection device
C the calculated load after demand factors have been applied
36.) How many doors are to be installed in each vestibule of the Wendy's restaurant? Select one: a.three b.one c.two d.four
C two
20.) Per the Veterinary Center prints, what breaker protects electric Wall Heater 3? Select one: a.single-pole 40 ampere b.three-pole 20 ampere c.two-pole 25 ampere d.two-pole 30 ampere
C two- pole 25 ampere
15.) Per the NEC® the number of receptacles required in an IEC classroom is ___. The room dimensions are 36 feet x 24 feet with a 3-foot wide door at the far end of one of the 36-foot long walls. Nobody lives there! Select one: a.9 b.8 c.17 d.0 e.4
D 0
5.) Determine the maximum current-carrying capacity for each conductor when four 1/0 AWG THW current-carrying copper conductors are installed in a common raceway with an ambient temperature of 86 degrees F. Select one: a.105 amperes b.112 amperes c.150 amperes d.120 amperes
D 120 amperes
33.) A low-pressure boiler has a maximum working pressure of ___ PSI. Select one: a.10 b.3 c.12 d.15
D 15
28.) How far are control joints cut in the slab at the Veterinary Center? Select one: a.10' on center b.8' on center c.12' on center d.15' on center
D 15' on center
9.) Arc-fault requirements for dwelling units are found in Section ___. Select one: a.210.8 b.210.15 c.210.11 d.210.12
D 210.12
Where a 14" section of trade size 31/2 Schedule 40 PVC is installed between enclosures, no more than ___ 2/0 AWG THHN/THWN conductors can be installed. Select one: a.28 b.23 c.17 d.26 e.20
D 26
34.) Per NEC® 310.15(B)(2), conduits that are installed with less than ___ of clearance between the bottom of the conduit and the surface of a roof are subject to have 60 degrees Fahrenheit added when calculating ambient correction factors. Select one: a.11/4" b.1" c.11/2" d.3/4"
D 3/4
2.) Which enclosure type would be suitable for indoor use which is subject to splashing water? Select one: a.2 b.12 c.5 d.4
D 4
13.) Luminaires weighing more than ___ pounds are required to be supported independently of the outlet box. Select one: a.35 b.25 c.70 d.50 e.15
D 50
4.) A feeder supplying a 5 kW wall-mounted oven and a 7 kW counter-mounted cooktop in a residence shall have a minimum demand factor of ___. Select one: a.8 kW b.9.5 kW c.12 kW d.7.8 kW
D 7.8 kW
9.) For straight pulls of 2 AWG conductors through junction box, the length of the box shall be at least ___ times the size of the largest raceway. Select one: a.2 b.6 c.4 d.8
D 8
4.) Suffixes that designate the number of conductors within a cable include ___.I. D - two insulated conductors laid parallelII. M - two or more insulated conductors twisted spirallyIII. T - two or more insulated conductors twisted in parallel Select one: a.III only b.II only c.I or III only d.I or II only e.I only
D I or II only
9.) A breaker panel is permitted to be located ___.I. in the bathroom in a houseII. in an electrical room in a schoolIII. in a bathroom in a restaurant Select one: a.II & III only b.I & III only c.I, II & III d.II only e.III only
D II only
10.) Per the Veterinary Center prints, temperature control conduit and wiring shall be by the: Select one: a.General contractor b.Owner c.Electrical contractor d.Mechanical contractor
D Mechanical contractor
18.) Many businesses have ___ generators installed to provide electric power if and when the utility power is not reliable. Select one: a.standard b.system c.static d.standby
D Standby
2.) Which of the following conductor arrangements is permitted by the NEC®? Select one: a. b. c. d.a or b only e.a or b or c
D a or b only
3.) The Code ___. Select one: a.is not necessarily efficient b.is not intended as a design specification c.is not intended as an instruction manual for untrained persons d.all of the above
D all of the above
8.) Refer to Table 8 in Chapter 9 in the NEC®. The ___ of a conductor is measured in mm2, circular mils, or in2. Select one: a.stranding b.length c.resistance d.area e.diameter
D area
14.) Ceiling-suspended (paddle) fans are required to be installed on ___. Select one: a.metallic boxes only b.boxes listed for supporting fixtures weighing fifty pounds or more c.boxes secured directly to a ceiling joist or other structural element d.boxes marked as suitable for fan installation e.any of these
D boxes marked as suitable for fan installation
15.) The grounding electrode conductor shall be ___. Select one: a.copper b.copper or aluminum c.aluminum or copper-clad aluminum d.copper, aluminum, or copper-clad aluminum
D copper, aluminum, or copper-clad aluminum
37.) 2' x 4' lay-in flanged light fixtures will be installed in the Wendy's restrooms in what type of finished ceiling? Select one: a.CT-1 b.1/4" white wood paneling c.CT-2 d.drywall
D drywall
24.) FACP is the acronym for ___. Select one: a.fire actuating control panel b.fixed alarm control panel c.frequent alarm circuit protection d.fire alarm control panel
D fire alarm control panel
8.) A continuous white or natural gray covering on a conductor shall be used only for the ___ conductor. Select one: a.ungrounded b.grounding c.hot d.grounded
D grounded
17.) Which is not a device? Select one: a.photocell b.receptacle c.switch d.light fixture
D light fixture
Quizze 210-211 1.) On a 4-wire, delta-connected system where the midpoint of one phase winding is grounded, only the conductor or busbar having the higher phase voltage to ground shall be durably and permanently marked by an outer finish that is ___ in color. Select one: a.green b.gray c.yellow d.orange
D orange
14.) The smallest size copper wire permitted to be used as a main bonding jumper in a 200-A main breaker panelboard is ___ AWG. The panel is fed from a transformer with one set of 3/0 AWG wire. Select one: a.1/0 b.3/0 c.3 d.2 e.4
E 4
11.) Section 240.21(C)(6) in the NEC® is the "25 foot rule." This section requires that the secondary conductors be 25 feet or shorter in length and ___.I. have an ampacity that is [(Pri OCPD ÷ 3) x (Epri line ÷ Esec line)]II. have an ampacity that is the rating of the circuit breaker or fuses at the endIII. be installed in a raceway or otherwise protected from physical damage Select one: a.III only b.II & III only c.I only d.I & II only e.I, II, & III
E I II,& III
13.) Systems are grounded to provide a path for ___.I. fault current II. lightning III. short-circuit current Select one: a.I & II only b.I, II & III c.III only d.I & III only e.II only
E II only
12.) For a 277/480-V, 3-ph, 4-W wiring system, the NEC® permits the insulation for any of the ungrounded conductors to be ___ in color. Select one: a.purple b.black c.brown d.orange e.any of these
E any of these