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- NEC Code Practice Test Quiz 1
- Electrician Practice Tests
- ELECTRICIAN'S EXAM PREPARATION GUIDE Eighth Edition Based on the 2011 NEC
- Electrician Practice Test
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NEC Code Practice Test Quiz 1
Take this free Practice exam to get a sample of the types of questions on an actual Journeyman Electrician's Exam. The subject matter covered in most electrical licensing examinations is: grounding and bonding, overcurrent protection, wiring methods and installation, boxes and fittings, services and equipment, motors, special occupancies, load calculations, lighting, appliances, box and raceway fill, hazardous locations, trade knowledge and electrical theory.
With Tests. Check with your local code official to determine which code applies to your location. Grade Answers as You Go. As shown in Table Incorrect answer.
Please choose another answer. Section Table A circuit breaker with an ampere rating of 75 amperes is not a standard ampere rating. As per Section The intent of this rule is to ensure enough conductor slack for the terminal connections or splices to be made easily.
Do not get service-drop conductors, the overhead conductors between the utility electric supply system and the service point, confused with the service-entrance conductors, the conductors from the service point from the utility company to the service disconnecting means. Study Online Instantly. The intent of Section In no case shall the point of attachment of the service-drop conductors to be less than 10 ft.
Electrical continuity is required for metallic conduit to establish an effective ground-fault path and facilitate the operation of the overcurrent protective device. Reference Section In compliance with Section The intent of this rule is to eliminate the use of unsightly extension cords which reduces the amount of usable countertop space on the countertop or work surface to supply cord-and-plug connected appliances.
Also, receptacles located more than 20 inches above countertops or work surfaces may interfere with the cabinetry to be installed. Where more than 3 current-carrying conductors are installed in short lengths of conduit or tubing, the heating effect caused from the additional conductors is insignificant therefore, the allowable ampacity of the conductors is not greatly reduced.
Part VII of Article outlines the special provisions for room air conditioners which are 1 rated not over volts ac, single-phase and 2 which are cord-and-attachment plug connected. In order to prevent overloading the branch circuit, as per Section Part II of Article explains the permitted location requirements for overcurrent devices. No one should be required to stand on different treads on a stairway to replace, repair, maintain, install, troubleshoot, or reset overcurrent devices in a panelboard or switchboard located in a stairway.
The provisions in Part II of Article apply to the installation of wiring methods and equipment in or adjacent to permanently installed swimming pools. As confirmed by the requirements given in Section This requirement allows ordinary appliances such as a radio, to be safely plugged in and used near the pool, but avoids the need for extension cords in the pool vicinity.
Be advised the receptacles must be provided with GFCI protection. Part V of Article covers the requirements for bonding of electrical installations.
Where mechanical and electrical connections are within equipment, a failure of electrical insulation can result in the connected piping systems becoming energized. For example, an insulation failure in an electrical circuit of a water heater could energize the metal water piping. Metal water piping systems must be bonded so that when a fault occurs between an ungrounded hot conductor and the piping, the potential difference between the two is minimized, thereby reducing the risk of electrical shock.
Also, note where installed in or attached to a building or structure, all metal piping systems, including gas piping, that is likely to become energized shall be bonded to a grounded source. The requirements of Article apply buildings used as a theater or for a similar purpose. Emergency lighting systems are designed and installed to maintain a specific degree of illumination for means of egress of the building in the event of fire, or similar emergency, or if the normal power supply fails.
Part IV of Article covers the wiring methods specified for use on solar photovoltaic PV systems arrays. These conductors are evaluated and listed for use where exposed to sunlight and wet conditions.
Part VII of Article covers the general requirements for methods of equipment grounding. Exception No. Because of the presence of water and grounded surfaces that contributes to a potential shock hazard, Section AFCI devices are designed to determine resistance to unwanted tripping due to the presence of arcing that occurs in utilization equipment under normal operating conditions or to a loading condition that closely mimics an arcing fault.
Article provides the general rules regarding branch circuits. Branch circuit and receptacle ratings are addressed in Part II of Article To prevent overheating receptacles, a receptacle shall not supply a total cord-and-plug-connected load in excess of the maximum specified in Table 21 B 2 , where connected to a branch circuit supplying multiple receptables or other outlets.
This table shows a ampere rated receptacle may carry a maximum cord-and-plug-connected load of 12 amperes under this condition. Part II of Article governs the permitted installation of busways.
For busways in industrial establishments only, providing overcurrent protection at the point where the busway size is changed is not required if the busway having the smaller ampacity does not exceed fifty 50 feet in length and has an ampacity of at least one-third the rating of the overcurrent protection of the larger usway. As explained in Section The conductors and cables installed in underground installations must be of a type listed for use in wet locations.
Restrictions of the use of non-metallic sheathed cable is addressed in Part II of Article As defined in Article , a continuous load is a load expected to continue for three 3 hours or more.
The installation requirements for fixed outdoor electric deicing and snow melting equipment are given in Article When sizing conductors and overcurrent protection for the fixed outdoor equipment you must take into consideration the equipment can operate over 3 hours, so it is considered a continuous load. To solve this problem first locate the conductor size on the left side of Table In this situation there are 4 current-carrying conductors in the raceway therefore, we must apply the correct adjustment factor derating value as shown in Table Prev Next Finish.
Quality starts with who wrote the material. Our practice exam writer s. Ray is a certified instructor of electrical trades. His classes are presented in a simplified, easy-to-understand format for electricians. He is an active member of the International Association of Electrical Inspectors and a retired member of the International Brotherhood of Electrical Workers.
Bookmark Page. Which one of the following listed circuit breakers is NOT a standard ampere rating? Why is electrical continuity required for metallic conduit? To reduce voltage drop. To limit galvanic corrosion.
To establish an effective ground-fault path and facilitate the operation of the overcurrent protective device. To reduce electrolysis. Which of the following shall not be located over the steps of a stairway? AFCI protection only. GFCI protection only. In industrial establishments only, when a ampere rated busway is tapped from a ampere rated busway, what is the maximum permitted length of the ampere busway where overcurrent protection is not provided for the ampere busway?
Electrician Practice Tests
Take this free Practice exam to get a sample of the types of questions on an actual Journeyman Electrician's Exam. The subject matter covered in most electrical licensing examinations is: grounding and bonding, overcurrent protection, wiring methods and installation, boxes and fittings, services and equipment, motors, special occupancies, load calculations, lighting, appliances, box and raceway fill, hazardous locations, trade knowledge and electrical theory. With Tests. Check with your local code official to determine which code applies to your location. Grade Answers as You Go. As shown in Table Incorrect answer.
ELECTRICIAN'S EXAM PREPARATION GUIDE Eighth Edition Based on the 2011 NEC
In Charlie was awarded the prestigious Coggeshall Award for outstanding contributions to the electrical contracting industry, codes and standards development, and technical training. Even though Charlie passed away in October of , his work continues in spirit. NECA continues to maintain this question forum for its many subscribers in memory and recognition of all his significant contributions to making the NEC what it is today. In addition, this correspondence is neither intended, nor should it be relied upon, to provide professional consultation or services. All rights reserved.
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Electrician Practice Test
Take a free Electrician Practice Test to see what kind of questions are on actual electrician license exams. Most states require an electrician to pass an exam to receive a journeyman or master electrician license. Check with your local code official to determine which code applies to your location. Grade Answers as You Go. Part III of Article Conductors for General Wiring, covers the general installation requirements for conductors rated up to and including volts.
Test Your Knowledge Online Quiz. Conduit Bending. Business Law Books. Tom Henry's Spanish Edition Books. State Exam Books. Estimating Books. Technical Books.
This section consists of Free National Electrical Code (NEC) practice tests. These practice exams helps for preparing Journeyman & Master license exams.
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You have reached 0 of 0 points, 0. In a panel board a two-pole circuit breaker is considered to be ………………. What is the minimum size service disconnecting means for a single family dwelling unit with an initial load of 10 KVA or more? At which of the following percentage the demand factor for six house hold electric cloth dryers is calculated? What is the maximum instantaneous voltage that a low voltage lighting system cannot exceed under any load conditions? A 25 amperes branch circuit connected with a cord-and-plug-connected appliance.
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