Nccer electrical level 2 module 3 Questions and answers graded A+ 2023/2024

Nccer electrical level 2 module 3NEC 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 improved light quality when used in a lamp halogen gas fluorescent lamps with a single pin at each end are known as instant-start lamps when installing a surface-mounted fixture weighing more than 50 pounds, it can be supported by the outlet box if the box is designed and marked to support more than 50 pounds. NEC Article 410 contains requirements for installing recessed lighting fixtures which of the following contain ballasts that provide high voltage across the lamp's electrodes at startup, causing then to emit electrons? instant-start lamps which of the following is an HD ballast category? constant wattage autotransformer Light enters the eye through a transparent layer called the cornea which of the following materials absorbs the most light? Dark red glazed bricks The type of high-intensity discharge (HID) lamp that has excellent color rendition is the metal halide lamp which of the following describes a color temperature 4,100k and higher cool in tone with a bias toward blue and greens The junction box and recessed lighting fixture should be separated by a minimum distance of 1' which of the following are often used in conjunction with time clocks to turn off lighting when it is no longer needed? photo sensors Which of the following should be at least 18' in length when used to connect a junction box mounted above a suspended ceiling to a fixture installed in a suspended ceiling? Fixture whip Which section of the NEC requires that at least 6" of free conductor length be left at each outlet box when cutting the branch circuit wires in preparation for connecting a light fixture? NEC Section 300.14 In an office where people sit quietly at desks from 8:30 a.m. to 5:00 p.m., Which type of lighting control would be most efficient in turning off the lights when they were not needed? timer Unless it is protected or is a low-voltage type of track, track lighting on a wall must be installed at least 5' above the floor