1Electroplating is an application of:APhotoelectric effectBInductionCRadiationDElectrolysisView AnswerDiscussWorkspaceReportSaveEasy
2Arc furnaces are used mainly for:ADrying woodBMelting steelCLightingDCookingView AnswerDiscussWorkspaceReportSaveEasy
3Resistance heating works on the principle of:AInductionBArc formation onlyCDielectric lossDI²R (Joule) heatingView AnswerDiscussWorkspaceReportSaveEasy
4Dynamic (rheostatic) braking:AConverts kinetic energy into heat in resistorsBReturns energy to the supplyCUses friction onlyDReverses the supplyView AnswerDiscussWorkspaceReportSaveEasy
5Energy-efficient motors save energy mainly by:AReducing losses through better materials and designBUsing higher voltage onlyCRunning fasterDDrawing more currentView AnswerDiscussWorkspaceReportSaveEasy