16A surge arrester is connected:AIn series with the lineBBetween two phases onlyCAcross the load onlyDBetween the line and earthView AnswerDiscussWorkspaceReportSaveEasy
17An earth leakage circuit breaker (ELCB/RCCB) protects mainly against:ALightningBOverspeedCOvervoltageDElectric shock due to leakage currentView AnswerDiscussWorkspaceReportSaveEasy
18An arc in a circuit breaker is extinguished by:ACooling, lengthening and de-ionising the arc pathBIncreasing currentCRemoving the contacts slowlyDAdding more voltageView AnswerDiscussWorkspaceReportSaveEasy