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NEC Midterm Exam With 100% Correct And Verified Answers 2024, Exams of Advanced Education

A study guide or exam preparation material for the national electrical code (nec) midterm exam in 2024. It contains a series of questions and correct answers related to various articles and sections of the nec, covering topics such as wiring methods, overcurrent protection, grounding, and electrical equipment. A comprehensive review of key nec concepts and requirements, making it a potentially valuable resource for students preparing for the nec midterm exam. The level of detail and the range of topics covered suggest that this document could be useful for university-level electrical engineering or construction management courses, as well as for electricians and other professionals working in the electrical industry.

Typology: Exams

2023/2024

Available from 08/28/2024

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Download NEC Midterm Exam With 100% Correct And Verified Answers 2024 and more Exams Advanced Education in PDF only on Docsity!

NEC Midterm Exam With 100% Correct

And Verified Answers 2024

What is the name for article 445? - Correct Answer-Generators What is the name of article 685?? - Correct Answer-integrated electrical systems What is the name for article 400? - Correct Answer-Flexible cords and cables Article 110.21 talks about______? - Correct Answer-Marking What is the name of article 250? - Correct Answer-Grounding and bonding What is the name for article 630? - Correct Answer-Electric Welders What is the name for article 620? - Correct Answer-Elevators What is the name for article 550? - Correct Answer-Mobile Homes What is the name for article 700? - Correct Answer-Emergency systems What is Chapter 9? - Correct Answer-Tables What chapter of the code covers Special occupancies? - Correct Answer- What is the name for article 440? - Correct Answer-Air conditioning equipment What is the name of article 830? - Correct Answer-Network-powered broadband communications systems Who writes the NEC? - Correct Answer-NFPA What is the name of article 450? - Correct Answer-Transformers Article 400.13 deals with? - Correct Answer-Splices Should the NEC book be used for a training manual, according to 90.1? - Correct Answer-No What is the name for article 310? - Correct Answer-Conductors for general wiring What is the name for article 240? - Correct Answer-overcurrent protection

What is the number of the article for Optical fiber cables and raceways? - Correct Answer- What chapter of the code covers Wiring Methods and Materials? - Correct Answer- What is the name for article 500? - Correct Answer-Hazardous location What is the name for article 690? - Correct Answer-Solar photovoltaic systems What is the name for article 516? - Correct Answer-Spray application, Dipping, and Coating, Printing processes According to informative annex C, what section deals with EMT? - Correct Answer-C What is the name for article 410? - Correct Answer-Luminaires and Lamp holders and Lamps What is the name of article 670? - Correct Answer-Industrial machinery What is the name of the article 728? - Correct Answer-Fire resistive cable systems What is the name of article 334? - Correct Answer-Non-metallic sheathed cable (Romex) What is the name for chapter 9? - Correct Answer-Tables What is the name of article 300? - Correct Answer-General requirements for Wiring methods and materials What is the name for article 668? - Correct Answer-Electrolytic cells Installations of electrical equipment for ships are covered by the NEC, according to 90. (B). - Correct Answer-False In all of the articles, the .1 only tells you the _______ of the article. - Correct Answer- scope What is the name of article 404? - Correct Answer-Switches Article 110.16 talks about ________? - Correct Answer-Arc flash hazard warnings What is the name for article 694? - Correct Answer-Wind Electric Systems In article 90.9 (c) (1), what is the title of the article - Correct Answer-Trade sizes What is the name for article 422? - Correct Answer-Appliances

What is the name for article 406? - Correct Answer-Receptacles, cord connectors, and attachment plugs What is the name of article 358? - Correct Answer-Electrical metallic tubing (EMT ) What is the name for article 665? - Correct Answer-Induction and dielectric heating equipment What is the name for article 513? - Correct Answer-Aircraft hangars What is the name for article 408? - Correct Answer-Switchboards, Switchgear, and Panel boards What is the name for article 610? - Correct Answer-Cranes and hoists What is the name for article 250.52? - Correct Answer-Grounding electrodes What is the name for article 338? - Correct Answer-Service entrance cable What is the name of article 500? - Correct Answer-Hazardous locations What is the name of article 692? - Correct Answer-Fuel cells What is the name for article 517? - Correct Answer-Health care facilities According to the definitions, A __________ is a device or group of devices that serves to govern, in some predetermined manner, the electric power delivered to the apparatus to which it is connected. - Correct Answer-controller According to Article 110, Conductors of Dissimilar metals ________ be intermixed in a terminal or splicing connector where physical contact occurs between dissimilar conductors unless the device is ___________ for the purpose and conditions of use. - Correct Answer-Shall not, Identified What article of the code covers 'Nonmetallic sheathed cable (romex)'? - Correct Answer- According to article 110.26 (E), Sprinkler protection is never allowed in the dedicated space above a motor control center. - Correct Answer-false What article of the code covers specifically 'receptacles'? - Correct Answer- According to the definitions, the term 'continuous load' is a load where the maximum current is expected to continue for _________ hours or more. - Correct Answer-

What number is the article for Branch circuits? - Correct Answer- Article 110 article on warning signs, it states that guarding live parts, at the entrance to rooms and other guarded locations that contain exposed live parts shall be marked with conspicuous warning ______ forbidding unqualified persons to enter. - Correct Answer- signs In article 110.14, it states that terminal for more than one conductor or use to connect aluminum shall be ________ - Correct Answer-identified In article 110, conductors shall be ________ where the material of the conductor unless otherwise provided in this Code. - Correct Answer-Copper, aluminium or copper clad What number is the article for Electrical metallic tubing? - Correct Answer- According to Article 90, are railway vehicles covered by the NEC? - Correct Answer-no According to the definitions, the term 'readily accessible' means capable of being reached __________. - Correct Answer-quickly What article of the code covers 'Temporary Installations'? - Correct Answer- Section II in article 210 is for? - Correct Answer-Branch-circuit ratings In article 110.13, it states that electrical equipment provided with ventilating openings shall be installed so that walls or other obstructions do not prevent __________ of air through the equipment. - Correct Answer-Free circulation In most articles, the '.1' after the article number covers ________? - Correct Answer- scope of the article What article of the code covers electric welders? - Correct Answer- What does Article 90.1(A) says that the purpose of the code is _________. - Correct Answer-The practical safeguarding of persons and property from hazards According to Article 110, Equipment not identified for use as outdoor use and equipment ________ for indoor use shall be protected from weather and wet conditions during construction while exposed to the elements. - Correct Answer-identified According to table 110.28, which box will be need for hosedown conditions for outdoor use? - Correct Answer- Park trailers are cover in article______ - Correct Answer-

According to Article 110, service equipment at other than dwelling units shall be legibly marked in the field with the available fault current? - Correct Answer-true According to article 110.26, When dealing with the working space of equipment, it states that all doors shall swing a minimum of _____ degrees. - Correct Answer- What article of the code deals with Park Trailers? - Correct Answer- A continuous load is one that is energized for longer than _____ hours. - Correct Answer- In article 110, electrical equipment that produces arcs, sparks, flames, or molten metal shall be ________ and kept away from combustible material. - Correct Answer- enclosed or separated In article 110.12, an unused opening shall be _______ to afford protection of the equipment. - Correct Answer-closed In article 110, it states that unused openings shall be closed to afford protection ____________ equivalent to the wall of the equipment. - Correct Answer-substantially An Audio Signal Processing, Amplification, and Reproduction Equipment is covered in article _____ - Correct Answer- According to Article 110, equipment intended to interrupt current at other than fault levels shall have an interrupting rating at ______ circuit voltage for the current that must be interrupted. - Correct Answer-Nominal What article of the code covers specifically 'Switches'? - Correct Answer- What article of the code covers 'Electrified truck parking spaces'? - Correct Answer- Unless otherwise marked the 'temperature limitations' of terminals and conductors shall be determined by what code section of Chapter 1? - Correct Answer-110.14 (C) What table of the code contains the requirements for 'working spaces' around 1000v nominal or less - Correct Answer-Table 110.26(A) (1) According to article 220.54, What is the total kW used for a general method calculation, for a 3.5 kW dryer? - Correct Answer- Article 220, Part V deals with what? - Correct Answer-Farm load calculations In table 250.66, what size alum grounding electrode conductor needed when the service entrance conductor is 2/0 alum? - Correct Answer-

In article 210.52, it says a balcony, deck or porch that is accessible from inside, must have _____ receptacle/s located on it that is below 6 ½ feet. - Correct Answer- According to article 220.52, What is the percentage of the appliance load would you multiply by if you had four or more fastened in appliances? - Correct Answer- Which Code section prohibits service conductors passing through one building to serve another building or structure? - Correct Answer-230. According to a table in article 240, which is not a standard ampere rating for a fuse? - Correct Answer- According to article 210.8, In other than dwellings a GFCI must be installed within _____ of the outside edge of a sink. - Correct Answer-6 feet According to article 240.60, Which one of these is NOT required to be on a cartridge fuse? - Correct Answer-Resistance rating In article 210.23, the rating of one cord and plug connected utilization equipment not fastened in place shall not exceed ____ % of the branch circuit ampere rating. - Correct Answer- In table 250.66, what size copper grounding electrode conductor needed when the service entrance conductor is 500MCM alum? - Correct Answer-2/ What section of the code states that overcurrent protection devices cannot be located in bathrooms? - Correct Answer-240.24 (E) According to article 240.24, Circuit breakers and switches containing fuses must be _______________. - Correct Answer-Readily accessible What section of the code deals with dwelling unit electric dryers? - Correct Answer-

According to article 250.52, When considering using a ground ring for a grounding electrode, it must be in direct contact with the earth and consisting of at least _____ feet of bare copper conductor not smaller than 2 AWG. - Correct Answer- According to article 230.28, Only _________ service-drop or overhead service conductors shall be permitted to be attached to a service mast. - Correct Answer-power According to article 250.122, the minimum size equipment grounding copper conductor for breaker not exceeding 60 amps is ____? - Correct Answer- According to article 240.5, a #16 fixture wire shall be permitted to be tapped to a ____ ampere circuit when the run is up to 100 feet in length? - Correct Answer-

According to article 240.83, Any breaker under ______amperes or less than 1000 volts, shall have the ampere rating molded, stamped, etched, or similarly marked into their handles or escutcheon plate. - Correct Answer- According to article 240.60, Which of the following is NOT required to be marked on a cartridge fuse? - Correct Answer-wattage According to article 250.122, the minimum size equipment grounding alum conductor for breaker not exceeding 500 amps is ____? - Correct Answer-1/ To which article should you refer to find overcurrent protection requirements for air- conditioning and refrigeration equipment? - Correct Answer- Table 250.66 is used to size the grounding electrode conductor for an alternating current system and is sized upon the size of the__________ conductor(s). - Correct Answer-Largest ungrounded service entrance or parallel conductor According to article 220.52, How much VA is to be added for your laundry circuit, when using the general method? - Correct Answer- According to article 210.63, A 125 volt single phase 15 or 20 amp receptacle shall be installed ____ of heating, air conditioning, and refrigeration equipment on the same level as the equipment? - Correct Answer-on the same level According to article 250.122, the minimum size equipment grounding copper conductor for breaker not exceeding 1200 amps is ____? - Correct Answer-3/ According to article 210.52 (D), A dwelling bathroom must have a least 1 receptacle outlet that must be with ____ feet of the outside edge of each basin. - Correct Answer- Can vegetation be used to serve as support for an overhead service conductor? - Correct Answer-No According to article 220.52, A dwelling has (2) 1000 watt fixed appliances, what is the total va that would be used for calculation? - Correct Answer- According to article 250.122, The minimum size equipment grounding alum conductor for breaker not exceeding 500 amps is ____? - Correct Answer-1/ According to article 220.52, A dwelling has (4) 1000 watt fixed appliances, what is the total VA that would be used for calculation? - Correct Answer- According to article 210.8, If a receptacle is within ____ feet of top inside edge of the sink must be GFI protected? - Correct Answer-

According to article 230.28 (A), the service mast shall be of adequate _________ or be supported by braces or guys to withstand safely the strain imposed by the service drop.

  • Correct Answer-strength According to part VII of article 240, circuit breakers used as switches in 120 volt and 277 volt fluorescent lighting circuits be listed and shall be marked ___________? - Correct Answer-SWD or HID In table 220.56, a commercial kitchen has 6 appliances, what would be the multiplier? - Correct Answer- In table 250.66, what size copper grounding electrode conductor needed when the service entrance conductor is 500MCM copper? - Correct Answer-1/ According to table 250.66, If the service entrance conductors of a 208/120Volt ac service were 400kcmil copper, what size copper grounding electrode conductor is required? - Correct Answer-1/ According to article 240, which is not a standard size fuse? - Correct Answer- In table 250.66, what size copper grounding electrode conductor needed when the service entrance conductor is 2/0 copper? - Correct Answer- In table 220.56, a commercial kitchen has 3 appliances, what would be the multiplier? - Correct Answer- In article 220, the minimum rating on a residential dryer that is to be used for calculation purposes using the general method is _____________________? - Correct Answer- kw or nameplate rating whichever is higher What article are the residential calculation requirements in for branch circuits, feeders and services? - Correct Answer- Where in Article 240 does it state that conductor overload protection shall not be required where the interruption of the circuit would create a hazard? - Correct Answer- 240.4 (A) According to article 240.83, A circuit breaker shall be marked with their _____________ in a manner that will be durable and visible marked after installation. - Correct Answer- Ampere rating Is a crawl space receptacle required to be GFI, according to article 210.8? - Correct Answer-yes According to article 230.71 (B), What is the maximum number of disconnects permitted to be installed for each service? - Correct Answer-

In table 250.66, what size alum grounding electrode conductor needed when the service entrance conductor is 500MCM copper? - Correct Answer-3/ According to table 220.12, The square footage for a dwelling must be multiplied by __ VA, using the general method? - Correct Answer- In table 250.66, what size copper grounding electrode conductor needed when the service entrance conductor is #2 copper? - Correct Answer- According to article 230.31, What is the minimum size for service-drop conductors and service lateral conductors? - Correct Answer-8 AWG copper According to article 210.50, It says a balcony, deck or porch that are attached to the dwelling unit and are accessible from inside the dwelling unit, shall have _____ receptacle/s located no more than 6 ½ feet above the balcony, deck, or porch walking surface. - Correct Answer- According to article 230.10, Can service conductors be supported by trees? - Correct Answer-no According to article 240.83, Every breaker shall have an interrupting rating of ______ amps, unless it is label or stamped on the breaker otherwise? - Correct Answer- According to article 200.6, An insulated grounded conductor 6AWG or smaller shall be identified by a continuous white or gray color or by three continuous white stripes on colored wire other than green insulation. - Correct Answer-true What section of the code deals with dwelling unit small appliances? - Correct Answer-

According to article 220.54, A dryer requires minimum kW of ____, when calculating using the general method. - Correct Answer- In article 210.10, in a dwelling unit bathroom at least 1 or more _____ amp 120 volt receptacle(s) shall be provided? - Correct Answer- According to article 240, which is not a standard size fuse? - Correct Answer- According to article 250.122, the minimum size equipment grounding copper conductor for breaker not exceeding 100 amps is ____? - Correct Answer- According to article 220.52, What is your total va to be calculated for your small appliances using the general method? - Correct Answer-

According to article 210.52, For each dwelling in a multi-family dwelling a receptacle must be installed at each outside entrance, at least one receptacle outlet readily accessible from grade and not more than ____ above ground level shall be installed. - Correct Answer-6 1/2 feet According to article 240.24, Overcurrent devices shall be readily accessible and the center of the operating handles cannot be more than ______ inches above the floor. - Correct Answer- According to article 210.52, Receptacles shall be installed along the floor line of any wall so that there is no point along the floor line that is more than ___ feet from a receptacle. - Correct Answer- According to article 250.122, The minimum size equipment grounding copper conductor for breaker not exceeding 100 amps is ____? - Correct Answer- According to article 250.122, The minimum size equipment grounding copper conductor for breaker not exceeding 1200 amps is ____? - Correct Answer-3/ According to article 220.52, How many volt-amps (VA) is added for a laundry circuit? - Correct Answer- In article 242 of the NEC, Surge arrestors shall be made _________ to unqualified persons. - Correct Answer-inaccessible According to article 240.24, in dwelling units,dormitory units, and guest rooms or guest suites, an overcurrent protection other than supplementary overcurrent devices, _____________ installed in a bathroom? - Correct Answer-shall not According to article 230.24, What is the minimum vertical clearance below a service- drop conductors passing over a parking lot? - Correct Answer-18'