Iec Final Second Year Questions And Answers With Latest Trials

Your only available grounding electrode is the metal underground water pipe from the water utility. You are required by the NEC to have one other grounding electrode for your service. Which of the following driven electrodes could you use ? {Ans: 10 ft of trade size 1 rigid metal conduit}The Ampacity of each conductor of a 8/3 AWG multiconductor Type W flexible cable used to supply fastened-in-plalce utilization equipment is ______ amps. See NEC T. 400.4 for available sizes. One of the conductors is an EGC and all conductors have a 75C insulation rating. {Ans: 65}The "J" designation in any of the "S-type" flexible cords designates _____. {Ans: a junior size}Which of the following statements is TRUE for an individual (or dedicated) branch circuit that is run in a conduit with other circuits? {Ans: it can share a neutral with another circuit}Anex _____ in the NEC contains examples of load calculations for dwellings. {Ans: D}When a resistive AC circuit also contains inductance and/or capacitance, the total opposition to current flow is called ______. {Ans: impedance}