Get Wired 101 Midterm Practice Test

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• How high above the garage floor are receptacles located (center height)?
• The bonding jumper provides a reliable conductor to ensure what?
• The generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media is known as:
• In box-fill calculations, what is the additional volume allowance for one or more equipment grounding conductors?
• Which rooms in a dwelling unit must always have a switch controlled lighting outlet?
• What do the letters "PPE" stand for?
• What NFPA standard specifically covers safety in the workplace?
• The law of charges states that like charges____ and opposite charges____.
• What is fibrillation of the heart?
• What is the average number of outlet boxes used per job across the eight jobs with counts 56, 9, 86, 36, 93, 105, 42, 56?
• Arc flash temperatures can reach 35,000°F, which is hotter than the surface of the Sun. True or False?
• What do the letters 'UL' signify?
• The valence shell of an atom is the ____ shell.
• For equipment grounding conductors, the volume allowance is based on which conductor?
• What authority enforces the requirements set by the NEC?
• Which health concept is associated with an abnormal heart rhythm characterized by quivering?
• The length of threading on an EMT box connector is approximately 7/16 inch. The locknut is 1/8 inch thick and the metal of the box is 1/32 inch thick. Once installed, how much thread is left for a threaded bushing?
• Which unit does NEC table 314.16B use to express conductor volume?
• What does the term approved mean in regulatory terms?
• Which statement correctly reflects the NEC definition of a qualified person?
• The NEC article number associated with grounding is?
• The mounting holes in a device (switch) box are tapped for which screws?
• If a ladder has spreaders that are not fully locked, what does the material say about safety?
• The mounting holes in an outlet box are tapped for which screws?
• Which metric prefix represents one thousandth?
• The maximum general purpose branch circuit rating of a flat conductor cable is ____ amperes.
• When the word 'shall' appears in a NEC reference, it means that it ___ be done.
• Unused knockouts in electrical boxes and cabinets must be closed according to which NEC provisions?
• Which statement is true about box-fill volume allowances?
• Branch-circuit conductors at outlet boxes are required to have at least____inches of free length for making splices and connections.
• Does the NEC provide minimum or maximum standards?
• Which subatomic particle carries a negative charge and orbits the nucleus?
• An inventory sheet shows 565 outlet boxes on January 1. On January 10, 145 boxes are taken out of stock. On January 14, 35 boxes are returned to stock. How many outlet boxes are in stock after January 14?
• Approximately how many years ago were the effects of static electricity noticed?
• What is the total horsepower of a group of motors that collectively use 16,412 watts?
• Underwriters Laboratories and other recognized testing laboratories 'approve' products.
• How is electricity defined?
• What is the definition of a bonding jumper?
• Which table in the Code shows the maximum number of conductors permitted in a given size box?
• An arc flash can generate temperatures of __________, which is hotter than the surface on the sun.
• In insulator materials, valence electrons are generally:
• In the international system of units, what does the prefix kilo- mean?
• Double volume allowance is required for which scenario?
• A total load of 25,620 W is distributed over five circuits. If the load is instead distributed evenly over six circuits, what is the new average per circuit?
• For box openings having any dimension less than 8 in (200 mm), the minimum length of conductor measured from the box opening in the wall to the end of the conductor is ________.
• A padlock is used to lock out a piece of equipment. Who should have the key?
• A building has eight floors with six apartments on each floor and two roof apartments. If each apartment has four electrical circuits, how many total circuits are there?
• What range of electric current generally causes death?
• What is the median number of outlet boxes used per job from the eight job counts: 9, 36, 42, 56, 56, 86, 93, 105?
• Which combination of actions best reduces the risk of electric shock when working on a circuit?
• Which measurement unit is associated with the listed conductor length requirement: 6 inches corresponds to how many millimeters?
• Which subatomic particle carries a positive charge and is located in the nucleus?
• What is the charge of an electron?
• Which set correctly lists the three principal subatomic particles and their charges?
• Which of the following is true about the 1/4 inch setback rule for outlet boxes?
• Electricity is the flow of:
• Which of the following is NOT a nationally recognized testing laboratory?
• Which statement best describes the purpose of NRTL labeling?
• A ladder is used to reach the top of a building 16 ft tall. What distance should the bottom of the ladder be placed from the side of the building?
• The nucleus of an atom contains?
• Which conductor size has a cubic volume of 3 cubic inches according to NEC table 314.16B?
• The most common method of producing electricity is through the use of:
• In the international system of units, what does the prefix milli- signify?
• What is the proper symbol for a single-pole switch?
• UL stands for what?
• Which article number in the NEC provides detailed information about box types and conduit bodies?
• What can you do to reduce or eliminate the possibility of receiving an electric shock when working on electrical circuits?
• What is the range of the box counts (max minus min) among the eight jobs?
• Lock out/tag out (LO/TO) is required by which organization?
• What NEC article has the majority of definitions?
• The NEC makes suggestions about how to wire a house that will be occupied by handicapped persons.
• What term describes current that flows in only one direction?
• At no point along the floor line, in any wall space, can you be more than ____ from a receptacle outlet.
• There shall be a minimum of one ____ ampere branch circuit for the laundry receptacle outlet in a dwelling unit.
• What is the mission of OSHA?
• It is a safe practice to use a stepladder in which the spreaders have not been fully locked into position.
• Which organization publishes the National Electrical Code (NEC)?
• A theoretical particle that bonds quarks together as well as protons and neutrons is called a _______.
• For extension ladders, an electrician must not stand higher than which rung from the top?
• The NEC is revised, and a new Code is published every how many years?
• A nine-floor apartment building has an average of four electrical circuits for each apartment. There are six apartments on each floor and one additional apartment on the roof. How many electrical circuits are in total?
• A very small magnet is wound with 97 layers holding 215 turns per layer. How many total turns of wire are on the coil?
• Which device delivers a controlled electrical shock to reset heart rhythm?
• The mounting holes in a metal box for attaching equipment grounding conductors are tapped for which screws?
• Name three devices used to provide ground-fault protection.
• What is an outlet?
• Direct current is also referred to as what?
• A purchase of 2,500 feet of THHN #14 wire is made for a job. On November 1, 1,365 feet of this wire are used. On November 3, an additional 830 feet are used. How many feet of wire are left after November 3?
• In box-fill calculations, what is the additional volume allowance for one or more fixture studs?
• A storable swimming pool is capable of holding water to a maximum depth of ____ inches.
• What do the letters UL signify?
• What is the proper symbol for a three-way switch?
• What is the approximate current at which a ground-fault detector will open a circuit?
• Askarel is the generic term for a group of nonflammable synthetic chlorinated hydrocarbons used as electrical insulating media. Which term best fits this description?
• A ____ is an outlet intended for the direct connection of a lamp holder.
• What is the open-circuit voltage between the two terminals of a single-pole switch on a lighting circuit when the switch is off?
• Approximately how many times heavier is a proton than an electron?
• What is the maximum number of 12 AWG conductors permitted in a 4 in. x 1 1/2 in. octagon box?
• The 4 11/16 in. x 1 1/2 in. square box corresponds to which type of box?
• Low-voltage systems are totally safe.
• When installing wall boxes on both sides of a common partition between a garage and a habitable room, what must be considered?
• The purpose of electrical symbols on plans is____.
• What is the total horsepower of five motors rated 1/16 hp, 1/4 hp, 1/3 hp, 3/4 hp, and 1/8 hp?
• Exterior raceways shall be designed to be suitable for use in wet conditions and to drain. Which of the following statements is true?
• Which height is commonly used for the center of garage receptacles?
• What is the proper symbol for a four-way switch?
• The plans show curved lines running between switches and various outlets. What do these dashed lines indicate?
• What is the definition of accessible (as applied to equipment)?
• What section of the NEC covers grounding?
• What is the cubic volume in inches for a 14 AWG conductor?
• Who is responsible for enforcing OSHA regulations?
• Plans show curved lines between switches and various outlets. What do these lines indicate?
• What term describes current that flows in only one direction and is also called direct current?
• NFPA stands for what?
• What type of fire is class B?
• In box-fill calculations, what is the additional volume allowance for one or more wiring devices on one yoke?
• The open-circuit voltage observed at a switch in the off position is typically equal to which value in a standard residential lighting circuit?
• The wall plate for a three-gang switch assembly (three switches) is called which plate?
• The following amounts of nonmetallic sheathed cable are used on an apartment house job: 625 ft, 785 ft, 75 ft, 140 ft, 310 ft, 325 ft, 120 ft. What is the total feet of nonmetallic sheathed cable used on the job?
• What does a Nationally Recognized Testing Laboratory (NRTL) do with electrical products to provide a basis for field approval?
• A total load of 25,620 watts is distributed equally over 5 branch circuits. What is the average load per circuit?
• Which particle has no electric charge?
• A conductor is normally made of atoms with ____ electrons in the valence shell.
• In lockout/tagout procedures, who should hold the key to prevent re-energization?
• Approximately how many times larger is the mass of a proton than that of an electron?
• When using the subject indexing technique, what should you do if the first subject you choose to look up is not in the index?
• Which statement best describes accessible equipment?
• Which statement about the NEC index location is true?
• Which particle is approximately 1838 times heavier than an electron?
• All of the following items of electrical equipment are devices, except for____.
• If the coil has 20,855 turns and each turn is 1.75 inches long, how many feet of #24 AWG wire are required to wind the coil?
• In box-fill calculations, beyond counting conductors, what is the additional volume required for one or more internal cable clamps?
• Find the shortest length of 1/2 inch conduit from which the following pieces can be cut: 7 7/8 inches, 3 1/4 inches, 6 1/2 inches, 12 1/8 inches and 24 3/16 inches. Allow 1/16 inch for each saw cut.
• What is the operating principle of a defibrillator?
• Which statement about listed or labeled equipment is true according to the material?
• Which particle is a fundamental constituent that combines to form protons and neutrons?
• Which statement best describes a ground fault?
• Listing or labeling of electrical equipment is performed by which type of organization?
• Raceways on exterior surfaces of buildings shall be _____ and arranged to drain.
• Table 314.16(A) allows a maximum of ten wires in a certain box. If the box has two cable clamps and one fixture stud, how many conductors are allowed?
• What method is recognized as the easiest and most reliable way to look up NED code articles?
• If the coil now has 41,710 turns and each turn is 1.75 inches long, how many feet of wire are required, rounding up?
• What is considered the most important rule of electrical safety?
• Which statement best describes NEC compliance as presented in the material?
• What does the law of charges state?
• The front edge of a box installed in a combustible wall must be flush with the finished surface. What is the proper term for this alignment?
• If two objects have opposite charges, they will be drawn toward each other.
• What is the purpose of the NEC?
• NEC 314.22 Exception allows a surface extension from an outlet box cover to be made using which material?
• Which of the following best describes the role of a Nationally Recognized Testing Laboratory (NRTL) with regard to electrical equipment?
• The standard for Electrical Safety in the Workplace published by the National Fire Protection Association is known as which document?
• The front edge of a box installed in a combustible wall must be flush with the finished surface. Which term describes this alignment?
• Which statement about low-voltage systems is supported by the material?
• The NEC code update cycle states that a new code is published every how many years?
• For what aspect is the NEC a minimum standard?
• What section of the NEC states that all listed or labeled equipment shall be installed or used in accordance with any instructions included in the listing or labeling?
• Certain types of boxes may be grouped together or____.
• An electrician uses switch outlet boxes on eight different jobs. The numbers used were 56, 9, 86, 36, 93, 105, 42, 56. What is the total number of outlet boxes used?
• How may luminaries be mounted to an outlet fastened to an offset bar hanger?
• What is a ground fault?
• Which set lists the devices used to provide ground-fault protection?
• When noncombustible surface material is used on walls or ceilings, outlet boxes must be mounted so that they will be set back not more than ____ from the face of the surface material.
• What is the maximum weight of a luminaire permitted to be hung directly from an outlet box in a ceiling, unless the box is otherwise marked?
• What is the NEC definition of a qualified person?
• Devices are equipment that carry current, but do not____.
• What is the primary objective of the NEC in electrical installations?
• What is the maximum number of 12 AWG conductors permitted in a 4 11/16 in. x 1 1/2 in. square box?
• The NEC first presents measurements in which system of units?
• Objects charged with the same type of charge will do what?
• In a house where 35 outlets are installed, 735 feet of cable are used. What is the average number of feet of cable used per outlet?
• What does MSDS stand for?
• In the context of the material, what is UL most accurately described as?
• The atomic number of an element is the number of ____ in the nucleus.
• How many chapters are there in the NEC?
• In conductor materials, the general number of valence electrons is:
• The part of an atom that has a positive charge is the?
• If two objects have the same type of charge, they will do what?
• Protons and neutrons are formed from a combination of smaller particles. What are these particles called?
• Floor receptacle outlets satisfying the rule shall be located not more than ____ inches from the wall.
• Which NEC provisions govern the closure of unused knockouts in electrical boxes and cabinets?
• It is necessary to count luminaire (fixture) wires when counting the permitted number of conductors in a box according to 314.16.
• Where is the index located in your code book?
• Objects charged with different types of charges will be drawn toward each other.
• A piece of carbon 31/32 inch thick has a copper plating of 1/64 inch on each side. What is the total thickness?
• A motor brush is 1 7/8 inches long. How long is it after 49/64 inch wears away?
• NEC 314.22 Exception requires that a surface extension from an outlet box cover be made using____.
• What is an MSDS?
• According to Article 100, a dwelling unit has which features?
• One horsepower equals 746 watts. How many watts are in 7 horsepower?
• Which subatomic particle is neutral and located in the nucleus along with protons?
• Why should a person work with only one hand when possible?
• Which statement correctly describes direct current in terms of direction?
• What federal organization dictates requirements for work-related safety issues?
• A receptacle outlet is:
• If 50 outlets are installed and 1,020 feet of cable are used, what is the average feet of cable per outlet?
• Class B fires involve which fuels?
• Compliance with the NEC always results in an electrical installation that is adequate, safe, and efficient.
• If a coil has 194 layers and 215 turns per layer, how many total turns does it have?
• Article ____ contains much detail about outlet boxes, device (switch) boxes, pull boxes, junction boxes, and conduit bodies.
• Valence electrons are contained in the ____ shell.
• Which statement best describes a lighting outlet?
• Which of the following is not a standard size fuse or time inverse circuit breaker according to the NEC?
• What does a dashed line between a switch and an outlet signify?
• Find the total amount of power in watts for a 5 hp, 7 hp and 10 hp group of motors. (One horsepower equals 746 watts)
• The smallest part of an element is a?