26. Ngawaphi amanqaku ekufuneka anikwe ingqwalaselo xa usebenzisa iseti yejenereyitha yedizili?

Impendulo:

1) Amanzi etanki lamanzi kufuneka onele kwaye agcinwe esebenza ngaphakathi kobushushu obuvumelekileyo.

I-2) Ioyile yokuthambisa kufuneka ibekhona, kodwa ingagqithisi, kwaye iqhubeke nokusebenza ngaphakathi koxinzelelo oluvumelekileyo.

I-frequency) izinzile malunga ne-50HZ, kwaye i-voltage izinzile malunga ne-400V.

4) Imisinga yamanqanaba amathathu ikuluhlu olulinganisiweyo.

27. Ngawaphi amacandelo eseti yomvelisi wedizili ekufuneka itshintshwe okanye icocwe rhoqo?

Impendulo: Icebo lokucoca idizili, isihluzi seoyile, isihluzi somoya. (Iiyunithi zomntu ngamnye zinezihluzo zamanzi)

28. Zeziphi ezona zibonelelo ziphambili zejenereyitha engaxutywanga?

Impendulo:

(1) Ukukhululwa kugcinwe iibhrashi zekhabhoni;

(2) uphazamiseko oluchasene nonomathotholo;

(3) Ukunciphisa ilahleko ukusilela magnetic.

29. Leliphi inqanaba lokufakwa ngokubanzi kwabavelisi basekhaya?

Impendulo: Umatshini oveliswe ekhaya luDidi B; umatshini wophawu lwemarathon, umatshini wohlobo lweLeroy Somer kunye nomatshini webram waseStamford bakudidi lweH.

30. Yeyiphi ipetroli yeinjini yepetroli ekufuneka ixutywe nepetroli kunye neoyile yeenjini?

Impendulo: Injini yepetroli yokubetha kabini.