Izinzwa zamazinga zingamathuluzi abalulekile embonini yezimoto, adlala indima ebalulekile ekuqaphelweni nasekulawuleni uketshezi oluhlukahlukene ngaphakathi kwezimoto.
Lezi zinzwa zihlinzeka ngezilinganiso zesikhathi sangempela zamaleveli oketshezi, afana nophethiloli, okokupholisa, namafutha, okuqinisekisa ukusebenza kahle, ukuphepha, nokwethembeka.
Ngokuhlanganisa ubuchwepheshe benzwa obuthuthukisiwe, izinzwa zeleveli zisiza ukwenza ngokuzenzakalelayo futhi zithuthukise amasistimu emoto, okunikela ekusebenzeni okunempumelelo kakhudlwana nasekunakekeleni.
Kafushane, izinzwa zeleveli zibalulekile embonini yezimoto, zithuthukisa ukuphepha kwemoto, ukusebenza kahle, nokusebenza.
Ngokuhlinzeka ngezilinganiso ezinembile nezifika ngesikhathi zamazinga oketshezi, lezi zinzwa zinika amandla ukuphathwa nokugcinwa kwemoto okungcono, ekugcineni kube nengxenye ekwazisweni kokushayela okuthembekile nokujabulisayo.