2-10.2-11.2-12.2-13.2-14.Conductors used for connectingdistribution transformers to thefeeder circuit are called1.distribution mains2.secondary mains3.primary mains4.service dropsThe primary purpose of adistribution transformer is to1.increase voltage to primarydistribution levels2.protect the primary feedersagainst overloads3.protect secondary feedersagainst overloads4.decrease voltage to utilizationlevelsWhat overhead circuits carry powerfrom the transformer to thecustomer through one or moreservice drops?1.2.3.4.Single-phase primaries onlySingle- or three-phaseprimariesSingle-phase secondaries onlySingle- or three-phasesecondariesTo neutralize an underground branchcircuit in the distribution system,which of the following control orprotective devices should theelectrician open?1.An air switch2.An oil switch3.A recloser4.A distribution cutoutLightning arresters are required atwhich of the following locations?1.At all substations2.On the primary side of alltransformers3.At all distribution centers andcapacitor banks4.All of the aboveFigure 2BIN ANSWERING QUESTIONS 2-15 THROUGH 2-20,REFER TO FIGURE 26.2-15.What type of distribution line isidentified by the letter “A”?1.Primary feeder2.Primary main3.Secondary main4.Service drop2-16.What type of distribution line isidentified by the letter “B”?1.Primary feeder2.Primary main3.Secondary main4.Service drop2-17.What type of distribution line isidentified by the letter “C”?1.Primary feeder2.Primary main3.Secondary main4.Service drop9
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business