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NEC chapter 5 contains? - specialty occupancy areas which of the following serves as the intro to the NEC and provides an overview of the book? - NEC article 90 organizations that test products for safety are? - NRTL's (Nationally Recognized Testing Laboratories) two definitions from NEC article 100 that trainees should become familiar with are? - labeled and listed NEC article 250 contains requirements for? - grounding and bonding electrical systems the first nationally recognized ele...

Ammeter - an instrument for measuring electric current. Amperes (A) - The basic unit of measurement for electrical current, represented by the letter A Atoms - The smallest particles to which an element may be divided and still retain the properties of the element. Battery - A DC voltage source consisting of two or more cells that convert chemical energy to electrical energy Charge - A quantity of electricity that is either positive or negative. Circuit - A complete path for current flow ...

under strict safety guidelines, which of the following should be used to discharge capacitors before working on de-energized circuits. - safety shorting probe for safety, assume that any facility constructed before 1980 has? - asbestos with of the following is the threshold at which a power source is considered high voltage in the context of safety? - over 600V- 600Volts insulated gloves must be inspected by the user? - always and field checked the normal beating of a heart can be upset by...

Double insulated/underground tools - electrical tools that are constructed so that the case is insulated from electrical energy. The case is made of a nonconductive material Fibrillation - very rapid irregular contractions of the muscle fibers of the heart that result in the heartbeat and pulse going out of rhythm with each other

The slandered system of wire sizes in the United Stated is known as the _______. - American Wire Gauge (AWG) system Wire sizes of No._ or larger are shown only as stranded. - No.6 The purpose of stranding is to increase ________. - The Flexibility of the wire A circular mil is a circle that has a diameter of ______. - 1 mil A mil is ____. - 0.001 inch Aluminum conductors have a _______. - Higher resistance The conductivity of aluminum is approximately ______ that of copper. - 2/3 The gro...

Which word or phrase best describes the NEC requirements for the installation of electrical systems? - Minimum All of the following groups are usually represented on the Code-Making Panels, except __________. - Government lobbyists Mandatory and permissive rules are defined in _______. - NEC Article 90 The general design and installation of electrical systems is covered in _____. - NEC Chapters 1,2,3, and 4 Devices such as radios, televisions, and telephones are covered in _______. - NEC ...

The maximum tungsten/infrared load amperage for a NEMA Size 0 magnetic contactor is ___. - 10A A manual reversing starter uses ___. - a mechanical interlock Mechanically held relays would most likely be used in a ___. - hospital, auditoriums, churches A single-contact device can be used to control multiple loads using a ___. - multiple-pole relay A furnace might use an on delay to ___. - avoid blowing cold air into the space when the system starts up A type of relay controlled by a magneti...

NEC requirements must be adhered to when installing incandescent recessed lighting fixtures because they - are a fire hazard if installed incorrectly which of the following will shorten the life of a filament in an incandescent lamp? - operating at warmer temperature chandeliers are a type of - suspended lighting fixture when white light is passed through a prism, how many total colors are visible - 6 Compared to standard incandescent lamps, which of the following provides longer life and ...

Any exposed live parts must be guarded if they are operating at - 50V or more between terminals Which of the following are most likely to use dynamic braking? - Forklifts In a DC series motor, how much of its full-load torque is developed at starting? - 500% For a given number of poles, which of the following determines the speed of an AC motor? - Frequency Which of the following motors is used where the required starting torque is high and speed control is desirable - compound the synchr...

A voltmeter is used to measure the value of a circuit's ____. - Electromotive force A closed circuit is indicated by an ohmmeter reading of ______. - Zero A meter that operates by sensing the strength of the electromagnetic field around the wire is a(n) ______. - Clamp-on ammeter Current measurement in milliamps are typically read using a(n) _____. - VOM An expected resistance of 1,000,000 ohms would be measured using a ______. - Megohmmeter Which category rating covers installation tha...

Which of the following is true regarding a series circuit? - The current flow is the same through all resistors. Which of the following is true regarding a parallel circuit? - It has more than one path for current to flow. Which of the following is true regarding a series-parallel circuit? - If a circuit is reduced to an equivalent series circuit, the total resistance is found by adding the loads. Two branches of a circuit (R1 and R2) across a 120V power line draw a total line current of 3...

The NCCER electrical training program applies DOL standards and is a - four-year program Entry into an apprenticeship program is likely to require a(n) - GATB Form Test The minimum standards for the safe installation of electrical systems can be found in - the National Electrical Code (NEC) OSHA standards for general industry are covered in - 29 CFR, Parts The termination of devices and fixtures is completed during a construction phase known as - trimout Which of the following is true wit...

A ground fault is described as - an unintentional electrically conducting connection between an ungrounded conductor of an electrical circuit and a normally non current carrying conductor Where a main bonding jumper is required by NEC, the main bonding jumper cannot be less than what percentage - 12.5% A ground test utilizing an auxiliary electrode and an auxiliary potential electrode is known as - 3 point test If single gain nail on non metallic boxes are used with NM cable which of the f...

Wire Sizes are expressed in gauge numbers. The standard system of wire sizes in the US is the - American Wire Gauge (AWG) The purpose of stranding is to - Increase the flexibility of the wire. Two-conductor cable - One white or gray wire(neutral), one black(hot), and a grounding wire(usually bare). The grounding conductor may be - bare, green, or green with yellow stripe The various types of conductors are concerned in - NEC article 310 The ampacities of conductors are given in - NEC Tabl...

Accident - According to the US Occupational Safety and Health Administration (OSHA), an unplanned event that results in personal injury and/or property damage. Combustible - Capable of easily igniting and rapidly burning; used to describe a fuel with a flash point at, or above, 100 F (38 C). Competent Person - A person who is capable of identifying existing and predictable hazards in the surroundings or working conditions that are unsanitary, hazardous, or dangerous to employees, and who h...

Active listening - A process that involves respecting others, listening to what is being said, and understanding what is being said. Body language - A person's facial expression, physical posture, gesture, use of space, all of witch communicate feeling and ideas. Jargon - Specialized terms used in specific industry Nonverbal communication - All communication that does not use words. This includes appearance, personal environment, use of time, and body language. Paraphrase - Express som...

Cross-bracing - Braces (metal or wood) placed diagonally from the bottom of one rail to the top of another rail that add support to a structure Excavation - Any man-made cut, cavity, trench, or depression in an earth surface, formed by removing earth. It can be made for anything from basements to highways. Guarded - Enclosed, fenced, covered, or otherwise protected by barriers, rails, covers, or platforms to prevent dangerous contact Hand line - A line attached to a tool or object so a wor...

Which plan shows layout of HVAC systems - Mechanical Plan Site plan show the location of a building from an________ view - Aerial View Electrical plans can include ___________ plans - Lighting drawings that show the design of the project - Architectual Plans drawings that show the location of the building on the site from an aerial view. Including contours, trees, construction features and dimensions. - Civil Plans (Site Plans) engineered drawings that show the mechanical systems, such as ...

Crown - The highest point of the curved edge of a framing member Dead load - The weight of permanent, stationary construction and equipment included in a building Dome pan - Metal or fiberglass concrete form used for two-way joist systems End joist - The first and last joists in a floor system; they run parallel to the common joists Fire stop - An approved material used to fill air passages in a frame to retard the spread of fire. Floor truss - An engineered assembly that is used to support...

Benchmark - A point established by the surveyor on or close to the building site. It is used as a reference for determining elevations during the construction of a building Contour lines - Imaginary lines on a site plan that connect points of the same elevation. Contour lines never cross each other. Easement - A legal right-of-way provision on another person's property (for example, the right of a neighbor to build a road or a public utility to install water and gas lines on the property...