A unit switch is the ON/OFF switch on an appliance that disconnects all ____ conductors. {Ans: ungrounded}When a transformer is loaded beyond its rating the effects in the transformer are ______ -i. excessive temperature -ii. deterioration of insulation -iii. coil failure {Ans: i, ii and iii}The largest trade size Schedule 80 PVC available that can be installed between two big pull boxes is ______. {Ans: 6}You are to install IMC between two equipment enclosures. You dont know how many or what size wires will have to be pulled into the conduit. If you install the largest available, this is trade size _____. {Ans: 4}At a recreational vehicle park, electrical service feeders shall be calculated on basis of not less than 600 volt-amperes per site when equipped with _________. {Ans: 20a supply facilties with only one dedicated tent site}For dwellings, heating or A/C loads are calculated at ______ of the nameplate rating and the largest load is used for a standard calculation. {Ans: 100}