Master Electrician Q%A VERIFIED TEST | ALREADY PASSED

Master Electrician Q%A VERIFIED TEST | ALREADY PASSED Where a 90 ampere, 240-volt, single-phase load is located 225 feet from a panelboard and is supplied with size 3 AWG copper conductors, determine the approximate voltage drop on the conductors. (K = 12.9) - ANSWER 10 volts Wiring methods associated with solar photovoltaic (PV) systems shall not be installed within _____ of the roof decking or sheathing except where directly below the roof surface covered by PV modules and associated equipment. - ANSWER 10 inches All metallic switchgear rated for over 600 volts shall be provided with a grounding busbar for the purpose of connecting the _____. - ANSWER metallic shield of cables Conductors tapped from a feeder and supplying the primary of a transformer need not have overcurrent protection, where the length of the tap conductors are not over 25 feet and have an ampacity of at LEAST _____ of the rating of the overcurrent device protecting the feeder conductors. - ANSWER one-third Electrical equipment such as switchboards, panelboards, industrial control panels, and motor control centers, located in commercial and industrial occupancies are required to be field marked to warn _____ of potential electrical arc flash hazards. - ANSWER qualified persons When connecting utilization equipment to a 20-ampere rated branch-circuit that also serves luminaires (lighting fixtures), the utilization equipment shall have an ampere rating of NOT more than _____. - ANSWER 10 amperes Where a hotel has a stationary electric sign installed inside a decorative fountain, the sign shall be at LEAST _____ inside the fountain, when measuring from the outside edges of the fountain. - ANSWER 5 feet In an aircraft hanger, the area that extends upward from the floor level _____ above the upper surface of aircraft wings, power plants and fuel tanks shall be classified as a Class I, Division 2 or Zone 2 location. - ANSWER 5 feet Conductors supplying outlets for arc and xenon motion picture projectors of the professional type shall be a MINIMUM size of _____. - ANSWER 8 AWG Where rigid polyvinyl chloride (PVC) conduit is installed underground to supply a gasoline dispensing unit, threaded rigid metal conduit (RMC) or threaded intermediate metal conduit (IMC) shall be used for the LAST _____ of the underground run to where the conduit emerges. - ANSWER 2 feet Where electrical metallic tubing (EMT) is installed under metal-corrugated sheet roofing decking, a clearance of at LEAST _____ must be maintained between the top of the tubing and the surface of the roof decking. - ANSWER 1 1/2 in.