- Study guides, Class notes & Summaries

Whenever? flows through a conductor, a magnetic field is created. - Answer current The ability of a moving or changing magnetic field to induce a voltage into a conductor is called ? . - Answer inductance When a conductor that is cutting through a magnetic field changes direction, the ? of the induced voltage will be reversed. - Answer polarity If the current flowing through a conductor decreases, the magnetic field around the conductor will increase. - Answer false ...

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23 pages

Written in 2025/2026

Grade A+

TestSolver9

Electrical service - Answer The electrical components that are used to connect the serving utility to the premises wiring system. Raceway system - Answer An enclosure that houses the conductors in an electrical system (such as fittings, boxes, and conduit.) Rough-in - Answer The installation of the raceway system, wiring, or cable. Trim-out - Answer The installation and termination of devices and fixtures after rough-in. Electrical field - Answer The .... can...

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5 pages

Written in 2025/2026

Grade A+

TestSolver9

kinetic energy - Answer Energy in motion or released potential energy potential energy - Answer stored energy due to position Example of potential energy - Answer water behind a dam Example of kinetic energy - Answer when water falls through a dam and is used to generate electricity sources of energy used to produce electricity - Answer coal, nuclear power, natural gas, oil, wind power, solar power, and water Energy is converted into - Answer motion, ...

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2 pages

Written in 2025/2026

Grade A+

TestSolver9

What is the conductive mass of the earth? - Answer Earth A protective conductor connecting exposed conductive parts of equipment to the main earthing terminal is? - Answer Circuit protective conductor A protective conductor connecting exposed and extraneous parts together is? - Answer Bonding conductor The act of connecting exposed conductive parts of the installation to the main earthing terminal of the installation is called? - Answer Earthing The act of linking...

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4 pages

Written in 2025/2026

Grade A+

TestSolver9

What are 3 study habits recommended for you to do well in this course? - Answer Read thoroughly Listen thoughtfully Take notes What type of content is subject to quiz questions? - Answer Interactive activities Links to external resources video content written/ text-based content What does NECA stand for? - Answer National Electrical Contractors Association What does PTSI stand for? - Answer Pro Tech Skills Institute What percent of electrical apprentices wont...

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8 pages

Written in 2025/2026

Grade A+

TestSolver9

Where would a electrician find information concerning the use of personal protective equipment? - Answer Occupational health and safety Act When is an electrical permit obtained? - Answer Prior to beginning any electrical work Unless walls are solid rock what is the maximum height a trench may be before it must be properly sloped, shored or protected by a trench box? - Answer 1.5 meters according to occupational health and safety How is a confined space determined? - Answ...

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13 pages

Written in 2025/2026

Grade A+

TestSolver9

When the atoms of elements combine, they produce _____. The smallest particle of a(n) _____ is called a molecule. (a) matter (b) element(s) (c) energy (d) compound(s) - Answer (d) compound(s) Electrostatic charge is due to an excess of, or a deficiency of, electrons between objects that have been separated. (a) True (b) False - Answer (a) True Lightning protection is intended to protect the building itself, as well as the electrical equipment on or inside the structure. ...

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14 pages

Written in 2025/2026

Grade A+

TestSolver9

telecommunications and electronic equipment - Answer Category 1 meters are rated for _______________. residential current - Answer Category 2 meters are rated for _______________. industrial purposes - Answer Category 3 meters are rated for _______________. three-phase utility and outdoor conductors - Answer Category 4 meters are rated for _______________. electron - Answer An ion is an atom that has had a(n) _____ added or removed. reduced - Answer O...

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9 pages

Written in 2025/2026

Grade A+

TestSolver9

Of the three basic classifications of magnetic materials, _______________ materials are either metal or nonmetal materials that cannot be magnetized. - Answer Diamagnetic What device is designed to open and disconnect a circuit in the event of excessive current? - Answer Fuse In the English system, the total force producing a magnetic field is the _____. - Answer Magnetomotive force A conductor is made from a material that contains between _____ valence electrons. - Answe...

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5 pages

Written in 2025/2026

Grade A+

TestSolver9

One shot and segmented - Answer What are the two types of bending shoes? Kick - Answer A single change in direction of less than 90 degrees is known as a Two equal kick bends in opposite directions - Answer What will produce an offset in a conduit run? 31.4 inches - Answer What is the development for an elbow bend in 5 inch conduit if the centerline radius is 20 inches? 6 inches in diameter - Answer Hydraulic benders are capable of bending rigid pipe up to an...

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2 pages

Written in 2025/2026

Grade A+

TestSolver9

what is the current wiring regs - Answer BS 7671:2018+A2:2022 a cable wired through a joist or Batton must be wired how far from the top or bottom - Answer 50 mm 7.3 A cable fitted les than 50mm below the wall must be - Answer - protected with an earth metallic strip - be enclosed in earthed conduit - be enclosed in earthed trunking or ducting - be installed in a zone within 150mm from the top of a wall or partition or within 150mm of an angle formed by two adjoining...

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6 pages

Written in 2025/2026

Grade A+

TestSolver9

The jurisdiction of the majority of JATCs around the country are comprised of - Answer A specific region within a state The quality of your work boots is immensely important for those working in the electrical trade because - Answer Work boots are required personal protective equipment that are sometimes the first line of defense against life-threatening injuries What organizations have partnered to make this apprenticeship program possible? - Answer IBEW and NECA What ma...

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4 pages

Written in 2025/2026

Grade A+

TestSolver9

1. Inductive reactance is measured in __________? a. Amperes b. Henry's c. Ohms d. Volts - Answer C. Ohms 2. Upon what principle does a transformer operate?. a. Capacitance b. Mutual capacitance c. Mutual inductance d. Self inductance - Answer C. Mutual inductance 3. Maximum EMF is induced when a conductor cuts a magnetic field at _________? a. 30 degrees B. 45 degrees c. 90 degrees d. 180 degrees - Answer C. 90 degrees 4. Two wires off a main feeder...

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10 pages

Written in 2025/2026

Grade A+

TestSolver9

What does the NEC consider working space? - Answer The required width of the working space is the greater of 30 inches or the width of the equipment. Left hand Coil Rule - Answer Explanation of the direction of a magnetic field around a coil, relative to the direction of the current in the coil. The thumb points to direction of current flow and fingers point to the magnetic flux What is the best advantage to using cable tray? - Answer What is the biggest disadvantage to ...

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7 pages

Written in 2025/2026

Grade A+

TestSolver9

In general, flexible cords are not permitted in which application? - Answer attached to building surfaces What is the allowable ampacity for 18 AWG fixture wire? - Answer 6 amperes Panelboards equipped with snap switches rated ___ amperes or less shall have overcurrent protection of 200 amperes or less. - Answer 30 The minumum clearance between a surface mounted fluorescent luminaire installed on the wall above the door and the nearest point of a storage space in a clothe...

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43 pages

Written in 2025/2026

Grade A+

TestSolver9

The unit of inductance is - Answer Henry Increasing the length of the magnetic circuit in an inductor ___________ its inductance - Answer Decreases Adding a ferrite core to a coil will cause its inductance to ________________ - Answer Increase Name four items of electrical equipment that exhibit inductive properties - Answer 1. Motors 2. Generators 3. Lighting ballasts 4. Transformers What is the equation that relates induced voltage to inductance - Answer ...

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6 pages

Written in 2025/2026

Grade A+

TestSolver9

Describe two advantages a flexible coupling offers the user when it's used to connect a mechanical load to a electrical motor - Answer .The coupling can absorb vibration in the motor or the load .Motor doesn’t need to be in alignment with the mechanical load .The motor can absorb some mechanical shock when it's started Where would a thermistor be located in the overcurrent protection circuit of a 3 phase motor - Answer Thermistor would be in the winding of the motor and c...

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15 pages

Written in 2025/2026

Grade A+

TestSolver9