1. Lub ntiajteb siv hluav taws xob nyob qhov twg? Dab tsi yog hluav taws xob tawg nyob hauv thaj chaw?
2. Dab tsi yog thauj khoom siv zog ntawm cov kab ke?
3. Dab tsi yog qhov tso zis hluav taws xob ntawm lub system, DC lossis AC?
4. Ntev npaum li cas lub kaw lus xav tau ua haujlwm txhua hnub?
5. Lub sijhawm muaj pes tsawg hnub uas lub cev yuav tsum tau siv lub zog txuas ntxiv thaum muaj huab cua los nag uas tsis muaj hnub ci?
6, thauj cov xwm txheej, tsis kam tiv thaiv ntshiab, ua kom muaj peev xwm lossis ua kom tsis muaj zog, ntau npaum li cas pib tam sim no?
7, tus naj npawb ntawm cov system yuav tsum.