16Cogging (failure to start) in squirrel-cage motors is reduced by:AUsing DCBSkewing the rotor slotsCRemoving the rotorDIncreasing voltage onlyView AnswerDiscussWorkspaceReportSaveEasy
17The rotor of a squirrel-cage motor has:APermanent magnetsBShort-circuited barsCA commutatorDSlip ringsView AnswerDiscussWorkspaceReportSaveEasy
18A slip-ring induction motor allows:AExternal resistance to be added to the rotor circuitBNo rotor currentCDC excitationDSynchronous operationView AnswerDiscussWorkspaceReportSaveEasy