JOURNEYMAN NEC 2023 FULL-LENGTH PRO

Florida Journeyman Electrician Practice Test - Full-Length Test 1 (Technical Section)

A full-length, 90-question practice exam covering all 8 core NEC topic areas, weighted the same way the real exam is. Modeled on Florida's real licensing exam format. Premium — part of Full-Length Pro.

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Frequently Asked Questions

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Most state Journeyman exams have 80–100 questions covering NEC code, wiring methods, branch circuits, motor controls, and load calculations.

Most states require a 70–75% passing score. This practice test uses the same 70% pass threshold so you know where you stand.

Questions are written to the 2023 NEC. Check your state licensing board to confirm which edition your state has adopted.

How to Use This Practice Test

This Florida Journeyman Electrician Practice Test - Full-Length Test 1 (Technical Section) has 90 questions with detailed answers and NEC references. Take the full test, review every wrong answer, and look up the NEC article it references before moving on.

Tip: This is an open-book exam — tab your NEC index and Articles 210, 250, and 430 before you start.

Topics covered: Branch circuits, grounding, wiring methods, load calculations, and motors.
Passing score: 70–75% (most states). Aim for 80% on practice tests so the real exam feels easy.
Questions: 90 multiple-choice, one correct answer each

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Florida Journeyman Electrician Practice Test - Full-Length Test 1 (Technical Section) — Question List

Question 1: What is the minimum working space that should be provided for switch boards and panel boards?

6 1/2 feet
8 1/2 feet
4 1/2 feet
2 1/2 feet

NEC Reference: NEC 110.26(A)(3)

Question 2: Per Article 242, surge-protective devices are classified as:

Type 1 through Type 5
Class A through Class D only
Generic SPD without classification
Class I, II, III only

NEC Reference: NEC 242.2 / 242.10

Question 3: Structural steel that forms part of a building frame must be bonded to the grounding electrode system when it is likely to be energized. Per 250.104(C), this bond is sized:

Per Table 250.66 — same as the GEC
Per Table 250.102(C)(1) — same as the equipment bonding jumper on the supply side
Always 4 AWG copper minimum, regardless of service size
Structural steel is not required to be bonded to the electrical system

NEC Reference: NEC 250.104(C)

Question 4: Type AC Cables shall not be permitted to use in the following locations?

damp and wet locations
concealed locations
exposed locations
dry locations

NEC Reference: NEC 310.22

Question 5: A K-12 school is using the optional method in 220.86. The first 3 VA per sq ft is taken at 100%; the remainder is taken at:

50% then 25%
75% then 25%
100% then 50%
40% then 30%

NEC Reference: NEC Table 220.86

Question 6: What size branch circuit conductor is required for a 4000 W, 240 electric water heater?

12 AWG
14 AWG
8 AWG
10 AWG

NEC Reference: NEC 422.10(A)

Question 7: The ampacity of the tap conductors who's length is 25 ft long shall be less than .................... of the over current device protecting feeder conductors.

NEC Reference: NEC 240.21

Question 8: The maximum recommended voltage drop in a branch circuit is ........................ percentage

NEC Reference: NEC 210.19

Question 9: In a single family dwelling unit what is the minimum allowable rating of a 3 wire service conductors?

125 amperes
100 amperes
150 amperes
75 amperes

NEC Reference: NEC 230.42(C)

Question 10: For each service , what are the maximum allowable service dis-connectors?

NEC Reference: NEC 230.71(A)

Question 11: Branch circuits for heating and air conditioning equipment located in the elevators shall not exceed which of the following voltage?

600 volts
480 volts
240 volts
900 volts

NEC Reference: NEC 620.3(C)

Question 12: The maximum voltage rating of plug fuse is .............. volts

NEC Reference: NEC 240.5

Question 13: The informational note in 215.2(A) recommends a feeder voltage drop limit of:

NEC Reference: NEC 215.2(A) IN

Question 14: What size service entrance conductors are required for 250 A continuous three phase load if the terminals are at ambient temperature of 70 C?

3/0 AWG
250 kcmil
400 kcmil
2/0 AWG

NEC Reference: NEC 312.5

Question 15: Five 12 kW electric ranges in a multifamily dwelling. Using Table 220.55 Column C, the demand load is:

15 kW
20 kW
25 kW
60 kW

NEC Reference: NEC Table 220.55

Question 16: The Minimum working clear distance in front of the enclosed equipment operating at a voltage 240 volts is ................ feet

NEC Reference: NEC 110.26

Question 17: How much maximum percentage of auxiliary gutters interior cross sectional area can be filled with conductors?

30 %
20 %
60 %
50 %

NEC Reference: NEC 366.22

Question 18: Fuses installed in a service entrance disconnecting means must be what class?

Class H fuses — the standard for all services
Any listed fuse with adequate ampere rating and interrupting capacity
Plug fuses only — cartridge fuses are not allowed at services
Class A fuses — the highest rated class available

NEC Reference: NEC 230.79(C)

Question 19: What is the minimum size service disconnecting means for a single family dwelling unit with an initial load of 10 KVA or more?

100 ampere for a 3 wire service
100 ampere for a 2 wire service
50 ampere for a 3 wire service
50 ampere for a2 wire service

NEC Reference: NEC 230.79

Question 20: The branch circuit supplying the pump motor for a permanently installed swimming pool must include:

AFCI protection
GFCI protection
A dedicated 30A circuit with no other loads
A time clock with GFPE at the panel

NEC Reference: NEC 680.21(C)

Question 21: 220.87 permits the existing-installation calculation method when:

Maximum demand data for at least one year is available (or 30-day — 1.25)
The building has been unoccupied for one year
New service is being installed for a new building
Load is unknown and must be estimated

NEC Reference: NEC 220.87

Question 22: What is the minimum size copper equipment grounding conductor for a 300 — ampere circuit?

4 AWG
6 AWG
8 AWG
10 AWG

NEC Reference: NEC 250.122

Question 23: For a permanently installed swimming pool at a house, receptacles that are located between 6 feet and 20 feet from the pool edge must have:

AFCI protection
GFCI protection
Tamper-resistant protection only
No special protection — the 6-foot rule is all that applies

NEC Reference: NEC 680.22(A)

Question 24: An isolated ground receptacle shall be identified by :................

An orange triangle
A permanent seal
A green dot
A cross sign

NEC Reference: NEC 406.3(D)

Question 25: Which size branch circuit protection is required for 20A motor compressor connected to 240 Volts circuit?

40 A
35 A
45 A
50 A

NEC Reference: NEC 440.22(A)

Question 26: A 2-inch raceway enters a junction box and the conductors make a U-pull (enter and exit on the same wall). Per 314.28(A)(2), minimum distance between raceway entry and the opposite wall is:

6 inches
8 inches
12 inches
24 inches

NEC Reference: NEC 314.28(A)(2)

Question 27: The metal enclosures used for service conductor and equipment ..................

must never be grounded
must be grounded
should be coated with non conducting material
should have clearance of 30 inches b/w enclosure and equipment

NEC Reference: NEC 250.80

Question 28: An electric circuit has an over current device rated at 1170 A using three sets of conductors with one per each phase. what is the minimum size of that can be used?

600 kcmil copper
500 kcmil copper
400 kcmil copper
700 kcmil copper

NEC Reference: NEC 310.15(B)(16)

Question 29: In the 200A residential panel shown, the 50A two-pole EV charger is a continuous load. Conductor and OCPD must be sized at:

100% of EVSE rating
125% of EVSE rating
150% of EVSE rating
80% of breaker rating

NEC Reference: NEC 625.41

Question 30: A 75 feet service is connected between 120/240 volts single phase feeder and a panel board. What is the voltage at panel board if the operating current of service is 60 amperes and resistance of service conductor is 0.2 ohms per 1000 feet?

239.1 volts
240 volts
238.5 volts
238 volts

NEC Reference: NEC 239.1

Question 31: What is the maximum demand for four wall-mounted ovens, house hold electric ranges and other house hold cooking appliances rated at over 1 — KW each?

17 KW
15 KW
10 KW
25 KW

NEC Reference: NEC 220.55

Question 32: A 460V, 3-phase motor runs at 28 amps full load. What is the smallest conductor ampacity you can use for its branch circuit?

28A — match the motor FLA exactly
32A × 115% of FLA
35A × 125% of FLA
42A × 150% of FLA

NEC Reference: NEC 430.22

Question 33: On a residential electric service which of the following conductors need over current protection?

un-grounded conductors
Grounded conductors
Neutral Conductor
Equipment Grounding Conductor

NEC Reference: NEC 240.25

Question 34: For the same two-motor feeder (25 HP and 10 HP, 460V), the maximum inverse-time CB feeder OCPD is calculated by adding:

70A
90A
100A
125A

NEC Reference: NEC 430.62

Question 35: Flexible cards may not be used in the following locations ..........

wiring of luminaries
cranes
Elevator cables
To replace a fixed wiring of a structure

NEC Reference: NEC 400.7

Question 36: What is the maximum continuous load that can be connected to 240 volts 10 ampere branch circuit?

8 amperes
10 amperes
5 amperes
9 amperes

NEC Reference: NEC 210.20

Question 37: When 5 current carrying conductors are equipped in the flexible cord, which percentage of rated ampacity is allowed for each conductor?

NEC Reference: NEC 400.5(A)(3)

Question 38: Full-load current of a 25 HP, 3-phase, 460V squirrel-cage motor from Table 430.250 is:

NEC Reference: NEC Table 430.250

Question 39: Show window lighting in a retail store is calculated at what VA per linear foot of window?

100 VA per linear foot
150 VA per linear foot
200 VA per linear foot
300 VA per linear foot

NEC Reference: NEC 220.14(G)

Question 40: The dedicated electrical space above a panelboard must extend how far above the top of the equipment?

3 ft above the top of the equipment
6 ft above the top of the equipment (or to structural ceiling)
To the highest point of the room only
No dedicated space is required above the panel

NEC Reference: NEC 110.26(F)(1)(a)

Question 41: What is allowable ampacity of NO.8 THWN conductor placed in a room where the ambient temperature of the room is at 42 degrees C?

50 amperes
65 amperes
67 amperes
47 amperes

NEC Reference: NEC 316.6

Question 42: What is the highest current rating of plug fuses of Edison base type?

30 amperes
120 amperes
80 amperes
50 amperes

NEC Reference: NEC 240.51

Question 43: A single phase motor can be protected against overload short circuit and ground fault by a single over current device.

True
False

NEC Reference: NEC 430.32

Question 44: A conduit body (Type LB) is being used in a conduit run. Under what conditions can it contain a splice?

Conduit bodies can never contain splices — they are pull points only
Only if the conduit body is accessible and its volume is marked on the body
Any time the conduit body is larger than the conduit trade size
Only if the splice is made with a listed wire connector

NEC Reference: NEC 314.16(C)(2)

Question 45: A 4 hp 230 V single phase motor has a service factor of 1.15 and name plate current rating of 25 A. What size dual element fuse can be used to protect the motor from overloads, short circuit and ground faults?

25 A
30 A
28 A
35 A

NEC Reference: NEC 430.32(A)(1)

Question 46: What is the allowable ampacity of a 10 AWG Fixture wire?

NEC Reference: NEC 402.5

Question 47: A 40 KVA , 480 V three phase transformer has a primary over current protection device is rated at 75 A. What is the size of primary conductor that can be used?

2 AWG
4 AWG
3 AWG
1 AWG

NEC Reference: NEC 310.15(B)(16)

Question 48: The ampacity of the feeder tap conductors which leaves the enclosure or vault shall not be less ........................ of the over current protection device rating protecting the feeder tap conductors.

1/5
1/10
1/12
1/8

NEC Reference: NEC 240.21

Question 49: How shall be the insulated or bare busbars mounted in panel boards?

Loose
Rigidly
Snug
Vertical to the floor

NEC Reference: NEC 408.51

Question 50: What is the maximum allowable ampacity of a NO.6 AWG copper type THW conductor at an ambient temperature of — 75 — ^oC?

65 amperes
85 amperes
50 amperes
100 amperes

NEC Reference: NEC 310.16

Question 51: A multifamily dwelling has 12 units. Using the optional method in 220.84, what demand factor is applied to the total connected load?

NEC Reference: NEC Table 220.84

Question 52: A 480V switchboard has exposed live parts on one side of the working space and grounded metal parts on the other (Condition 2). What is the minimum working clearance depth in front of the switchboard?

3 feet
3 — feet
4 feet
6 feet

NEC Reference: NEC Table 110.26(A)(1)

Question 53: Direct-buried cables that emerge from the grade must be protected up-to ........... ft above the ground.

NEC Reference: NEC 300.5

Question 54: The sealing compound which seals against passage of gas or vapors through the seal fitting shall not have a melting point of less than ____________ degrees C

90⁰ C
101⁰ C
93⁰ C
108⁰ C

NEC Reference: NEC 501.15

Question 55: When picking a motor controller, what is the minimum current it must be rated to handle?

Full-load current only
Locked-rotor current only
Both full-load current and locked-rotor current
The available short-circuit current from the utility

NEC Reference: NEC 430.110(A)

Question 56: Branch circuit conductors must have an ampacity of at least what percentage of the continuous portion of the circuit load?

100% of continuous load
115% of continuous load
125% of continuous load
150% of continuous load

NEC Reference: NEC 210.19(A)(1)

Question 57: What is the maximum operating voltage of a low voltage lighting system?

30 volts
25 volts
40 volts
35 volts

NEC Reference: NEC 411.2

Question 58: A lighting unit is connected on a 20 ampere branch circuit on which a fastened-in place appliance is located. What is the maximum percentage branch circuit rating is permitted on the appliance?

50 %
75 %
60 %
40 %

NEC Reference: NEC 210.23(A)(2)

Question 59: What is the minimum burial depth for rigid metal conduit (RMC) installed under a residential driveway?

0 inches — RMC in a driveway needs no minimum cover
6 inches
12 inches
24 inches

NEC Reference: NEC Table 300.5

Question 60: What is the receptacle calculated load for a 18000 square feet commercial property which contains one hundred twenty 15 A and 20 A 120 receptacles?

15800 VA
18000 VA
16800 VA
21500 VA

NEC Reference: NEC 220.14(1)

Question 61: The main service disconnect for a one-family dwelling must be rated at least how many amps?

60A
100A
150A
200A

NEC Reference: NEC 230.79(C)

Question 62: The residential load calculation worksheet shows a 2,400 sq ft house with a 12 kW range, two 4.5 kW water heaters, a 5-ton A/C unit (24A at 240V), and 10 kW of electric baseboard heat. Using the standard method, what is the calculated demand for just the general lighting and SABC loads combined before applying the demand factor?

7,200 VA — general lighting only
10,200 VA — general lighting plus SABC only, no laundry
11,700 VA — general lighting, two SABC circuits, and laundry circuit
13,200 VA — including all circuits in the calculation

NEC Reference: NEC 220.12, 220.52

Question 63: Except AC Generator exciters, all the constant AC voltages should inherently designed with ............................ protection.

Ground Fault
Over load
over voltage
All the above

NEC Reference: NEC 445.12

Question 64: Without applying any de-rating factor for conductor current carrying capacity, how many conductors can run parallel in raceway or cable?

NEC Reference: NEC 310.15(B)(3)(a)

Question 65: EMT conduit can be used in all the locations including hazardous locations.

True
False

NEC Reference: NEC 358.12

Question 66: What is the demand factor applied — in calculating feeder or service conductor load for a commercial kitchen having four electrical equipment

100 %
90 %
80 %
75 %

NEC Reference: NEC 220.56

Question 67: If a panel board contains a snap switch with rating of 30 amperes must be protected not in excess of :

200 amperes
30 amperes
150 amperes
300 amperes

NEC Reference: NEC 408.36(A)

Question 68: What is the adjustment ampacity of a 3/0 THWN conductor at an ambient temperature of 108⁰F in wet location. The raceway contains four 3/0 THWN conductors in it.

119 amperes
144 amperes
153 amperes
133 amperes

NEC Reference: NEC 310.15(B)(16)

Question 69: What is the required size of a neutral conductor for a dwelling unit with a calculated load of 220 A. The unbalanced load is 120 A and service disconnect rating is 250A.

1 AWG
2 AWG
3 AWG
4 AWG

NEC Reference: NEC 310.15(B)(16)

Question 70: What is the maximum size fuse allowed to protect 12 AWG THW copper branch conductor?

15 amperes
20 amperes
25 amperes
30 amperes

NEC Reference: NEC 240.4(D)(5)

Question 71: What is the maximum allowable voltage between two adjacent snap switches are receptacles placed in a enclosure?

300 volts
240 volts
480 volts
120 volts

NEC Reference: NEC 404.8(B)

Question 72: Which of the following is the amperage of the branch circuit additionally required for bathroom outlets?

20 amp
15 amp
25 amp
10 amp

NEC Reference: NEC 210.11(C)(3)

Question 73: If a single phase motor full load current is 30 Amperes, what is the dual element fuze size to be used as motor branch circuit short circuit protection?

50 amperes
55 amperes
60 amperes
65 amperes

NEC Reference: NEC 430.52

Question 74: Two overcurrent devices cannot be connected in parallel (both in the same circuit) unless:

The circuits they protect are identical
They are part of a listed assembly specifically designed for parallel operation
Each breaker is rated for half the expected load current
Parallel OCPDs are always permitted on feeders above 800A

NEC Reference: NEC 240.8

Question 75: A 5 HP Three phase motor with a name plate FLA of 25 A is used for intermittent duty and rated for 5 minute service. What size branch circuit conductor can be used for the motor when the terminals are rated at 75 ⁰C?

12 AWG
8 AWG
10 AWG
14 AWG

NEC Reference: NEC 430.22(E)

Question 76: What is the size of the branch circuit conductor that can supply 3 HP 115 volts single phase motor with terminals operating at 60⁰C?

8 AWG
10 AWG
12 AWG
14 AWG

NEC Reference: NEC 430.248

Question 77: Below-grade pits in an aircraft hangar are classified as:

Unclassified — pits are considered sealed from the main hangar floor
Class I, Division 2 throughout the pit
Class I, Division 1 inside the pit; Class I, Division 2 extending 3 feet from the pit edge
Class II, Division 1 due to the enclosed space

NEC Reference: NEC 513.3(C)

Question 78: What is the smallest size copper wire required for a service entrance conductor supplying limited loads of a single branch circuit?

12 AWG
8 AWG
6 AWG
10 AWG

NEC Reference: NEC 230.31

Question 79: In a single phase three wire electrical system, the middle conductor of a 3-wire should be which of the following?

Grounded
ungrounded
hot conductor

NEC Reference: NEC 250.26

Question 80: Two transformers each are rated for 480 VA are connected from a 120 volts single — feeder. One utilization equipment rated 80 VA is also fed from the same feeder circuit. Which of the following is the minimum ampere rating of feeder?

9 ampere
10 ampere
12 ampere
7 ampere

NEC Reference: NEC 215.52(B)

Question 81: The service entrance diagram shows a 480Y/277V, solidly grounded wye service rated at 1200A. Does this service require ground-fault protection of equipment (GFPE), and if so, why?

No — GFPE is only required on 120/240V services
Yes — the voltage to ground exceeds 150V and the service is 1000A or more
No — GFPE is optional on any service over 600V
Yes — all services over 800A require GFPE regardless of voltage

NEC Reference: NEC 230.95

Question 82: What is the minimum clearance of service drops over public streets, roads parking areas subject to truck traffic?

NEC Reference: NEC 230.24

Question 83: A 480V switchboard at an industrial plant has a calculated available fault current of 42,000 amps at the bus. What is the minimum interrupting rating required for the OCPDs in this switchboard?

10,000A AIC — standard panel rating
22,000A AIC — the next common rating above residential
42,000A AIC or higher
No AIC rating is required on the load side of the service

NEC Reference: NEC 110.9

Question 84: In a Category 1 patient bed location of a hospital, minimum number of receptacles required per 517.18(B) is:

NEC Reference: NEC 517.18(B)

Question 85: In a 3-phase, 4-wire wye system where more than 50% of the load is nonlinear (computers, VFDs, LED drivers), how is the neutral treated when counting current-carrying conductors for derating?

The neutral never counts as a current-carrying conductor
The neutral counts as a current-carrying conductor because it carries harmonic current
The neutral counts only if it is larger than the phase conductors
The neutral counts only in single-phase circuits

NEC Reference: NEC 310.15(E)(1)(b)

Question 86: A 25 amperes branch circuit connected with a cord-and-plug-connected appliance. What is the maximum ampere rating permitted for the appliance?

20 amperes
22.5 amperes
25 amperes
18.5 amperes

NEC Reference: NEC 210.23(A)(1)

Question 87: What size THWN conductor is required for a 35A circuit?

8 AWG
6 AWG
10 AWG
12 AWG

NEC Reference: NEC 110.14

Question 88: Underground wiring shall be installed in which of the following conduit

Threaded rigid metal
Threaded steal intermediate metal
PVC
All options are correct

NEC Reference: NEC 515.8

Question 89: The motor ground fault protective device need to be capable of carrying the starting current of the motor.

TRUE
FALSE

NEC Reference: NEC 430.53

Question 90: The minimum spacing between wood or other combustible materials and an incandescent lamp shall be ........ inches

1
1 1/2
2
2 1/2

NEC Reference: NEC 600.9

Key NEC References for This Test

Article	What It Covers
Art. 100	Definitions — know: feeder, branch circuit, OCPD, dwelling unit
Art. 210	Branch Circuits — GFCI/AFCI locations, circuit ratings, outlet spacing (most tested)
Art. 220	Load Calculations — dwelling unit standard method
Art. 250	Grounding & Bonding — GEC sizing, electrode system, EGC
Art. 310	Conductors — ampacity (Table 310.12), insulation, derate rules
Art. 430	Motors — conductor 125% FLA, OCPD 250% FLA, overloads, disconnects

Study Tip: Tab Articles 210, 250, and 430 in your NEC before the exam. Know the Table 310.12 ampacity values for 14, 12, 10, 8, 6, and 4 AWG copper.

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Florida Journeyman Electrician Practice Test - Full-Length Test 1 (Technical Section)

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Florida Journeyman Electrician Practice Test - Full-Length Test 1 (Technical Section) — Question List

Question 1: What is the minimum working space that should be provided for switch boards and panel boards?

Question 2: Per Article 242, surge-protective devices are classified as:

Question 3: Structural steel that forms part of a building frame must be bonded to the grounding electrode system when it is likely to be energized. Per 250.104(C), this bond is sized:

Question 4: Type AC Cables shall not be permitted to use in the following locations?

Question 5: A K-12 school is using the optional method in 220.86. The first 3 VA per sq ft is taken at 100%; the remainder is taken at:

Question 6: What size branch circuit conductor is required for a 4000 W, 240 electric water heater?

Question 7: The ampacity of the tap conductors who's length is 25 ft long shall be less than .................... of the over current device protecting feeder conductors.

Question 8: The maximum recommended voltage drop in a branch circuit is ........................ percentage

Question 9: In a single family dwelling unit what is the minimum allowable rating of a 3 wire service conductors?

Question 10: For each service , what are the maximum allowable service dis-connectors?

Question 11: Branch circuits for heating and air conditioning equipment located in the elevators shall not exceed which of the following voltage?

Question 12: The maximum voltage rating of plug fuse is .............. volts

Question 13: The informational note in 215.2(A) recommends a feeder voltage drop limit of:

Question 14: What size service entrance conductors are required for 250 A continuous three phase load if the terminals are at ambient temperature of 70 C?

Question 15: Five 12 kW electric ranges in a multifamily dwelling. Using Table 220.55 Column C, the demand load is:

Question 16: The Minimum working clear distance in front of the enclosed equipment operating at a voltage 240 volts is ................ feet

Question 17: How much maximum percentage of auxiliary gutters interior cross sectional area can be filled with conductors?

Question 18: Fuses installed in a service entrance disconnecting means must be what class?

Question 19: What is the minimum size service disconnecting means for a single family dwelling unit with an initial load of 10 KVA or more?

Question 20: The branch circuit supplying the pump motor for a permanently installed swimming pool must include:

Question 21: 220.87 permits the existing-installation calculation method when:

Question 22: What is the minimum size copper equipment grounding conductor for a 300 — ampere circuit?

Question 23: For a permanently installed swimming pool at a house, receptacles that are located between 6 feet and 20 feet from the pool edge must have:

Question 24: An isolated ground receptacle shall be identified by :................

Question 25: Which size branch circuit protection is required for 20A motor compressor connected to 240 Volts circuit?

Question 26: A 2-inch raceway enters a junction box and the conductors make a U-pull (enter and exit on the same wall). Per 314.28(A)(2), minimum distance between raceway entry and the opposite wall is:

Question 27: The metal enclosures used for service conductor and equipment ..................

Question 28: An electric circuit has an over current device rated at 1170 A using three sets of conductors with one per each phase. what is the minimum size of that can be used?

Question 29: In the 200A residential panel shown, the 50A two-pole EV charger is a continuous load. Conductor and OCPD must be sized at:

Question 30: A 75 feet service is connected between 120/240 volts single phase feeder and a panel board. What is the voltage at panel board if the operating current of service is 60 amperes and resistance of service conductor is 0.2 ohms per 1000 feet?

Question 31: What is the maximum demand for four wall-mounted ovens, house hold electric ranges and other house hold cooking appliances rated at over 1 — KW each?

Question 32: A 460V, 3-phase motor runs at 28 amps full load. What is the smallest conductor ampacity you can use for its branch circuit?

Question 33: On a residential electric service which of the following conductors need over current protection?

Question 34: For the same two-motor feeder (25 HP and 10 HP, 460V), the maximum inverse-time CB feeder OCPD is calculated by adding:

Question 35: Flexible cards may not be used in the following locations ..........

Question 36: What is the maximum continuous load that can be connected to 240 volts 10 ampere branch circuit?

Question 37: When 5 current carrying conductors are equipped in the flexible cord, which percentage of rated ampacity is allowed for each conductor?

Question 38: Full-load current of a 25 HP, 3-phase, 460V squirrel-cage motor from Table 430.250 is:

Question 39: Show window lighting in a retail store is calculated at what VA per linear foot of window?

Question 40: The dedicated electrical space above a panelboard must extend how far above the top of the equipment?

Question 41: What is allowable ampacity of NO.8 THWN conductor placed in a room where the ambient temperature of the room is at 42 degrees C?

Question 42: What is the highest current rating of plug fuses of Edison base type?

Question 43: A single phase motor can be protected against overload short circuit and ground fault by a single over current device.

Question 44: A conduit body (Type LB) is being used in a conduit run. Under what conditions can it contain a splice?

Question 45: A 4 hp 230 V single phase motor has a service factor of 1.15 and name plate current rating of 25 A. What size dual element fuse can be used to protect the motor from overloads, short circuit and ground faults?

Question 46: What is the allowable ampacity of a 10 AWG Fixture wire?

Question 47: A 40 KVA , 480 V three phase transformer has a primary over current protection device is rated at 75 A. What is the size of primary conductor that can be used?

Question 48: The ampacity of the feeder tap conductors which leaves the enclosure or vault shall not be less ........................ of the over current protection device rating protecting the feeder tap conductors.

Question 49: How shall be the insulated or bare busbars mounted in panel boards?

Question 50: What is the maximum allowable ampacity of a NO.6 AWG copper type THW conductor at an ambient temperature of — 75 — oC?

Question 51: A multifamily dwelling has 12 units. Using the optional method in 220.84, what demand factor is applied to the total connected load?

Question 52: A 480V switchboard has exposed live parts on one side of the working space and grounded metal parts on the other (Condition 2). What is the minimum working clearance depth in front of the switchboard?

Question 53: Direct-buried cables that emerge from the grade must be protected up-to ........... ft above the ground.

Question 54: The sealing compound which seals against passage of gas or vapors through the seal fitting shall not have a melting point of less than ____________ degrees C

Question 55: When picking a motor controller, what is the minimum current it must be rated to handle?

Question 56: Branch circuit conductors must have an ampacity of at least what percentage of the continuous portion of the circuit load?

Question 57: What is the maximum operating voltage of a low voltage lighting system?

Question 58: A lighting unit is connected on a 20 ampere branch circuit on which a fastened-in place appliance is located. What is the maximum percentage branch circuit rating is permitted on the appliance?

Question 59: What is the minimum burial depth for rigid metal conduit (RMC) installed under a residential driveway?

Question 60: What is the receptacle calculated load for a 18000 square feet commercial property which contains one hundred twenty 15 A and 20 A 120 receptacles?

Question 61: The main service disconnect for a one-family dwelling must be rated at least how many amps?

Question 63: Except AC Generator exciters, all the constant AC voltages should inherently designed with ............................ protection.

Question 64: Without applying any de-rating factor for conductor current carrying capacity, how many conductors can run parallel in raceway or cable?

Question 65: EMT conduit can be used in all the locations including hazardous locations.

Question 66: What is the demand factor applied — in calculating feeder or service conductor load for a commercial kitchen having four electrical equipment

Question 67: If a panel board contains a snap switch with rating of 30 amperes must be protected not in excess of :

Question 68: What is the adjustment ampacity of a 3/0 THWN conductor at an ambient temperature of 1080F in wet location. The raceway contains four 3/0 THWN conductors in it.

Question 69: What is the required size of a neutral conductor for a dwelling unit with a calculated load of 220 A. The unbalanced load is 120 A and service disconnect rating is 250A.

Question 70: What is the maximum size fuse allowed to protect 12 AWG THW copper branch conductor?

Question 71: What is the maximum allowable voltage between two adjacent snap switches are receptacles placed in a enclosure?

Question 72: Which of the following is the amperage of the branch circuit additionally required for bathroom outlets?

Question 50: What is the maximum allowable ampacity of a NO.6 AWG copper type THW conductor at an ambient temperature of — 75 — ^oC?

Question 68: What is the adjustment ampacity of a 3/0 THWN conductor at an ambient temperature of 108⁰F in wet location. The raceway contains four 3/0 THWN conductors in it.

Question 75: A 5 HP Three phase motor with a name plate FLA of 25 A is used for intermittent duty and rated for 5 minute service. What size branch circuit conductor can be used for the motor when the terminals are rated at 75 ⁰C?

Question 76: What is the size of the branch circuit conductor that can supply 3 HP 115 volts single phase motor with terminals operating at 60⁰C?