1. Umthwalo
Ukucinga; Ubomi baseTire yi-100% phantsi komthwalo oqhelekileyo
Xa i-30%, ubomi benkonzo ye-tare yi-60% yexabiso eliqhelekileyo
Xa i-50% i-50%, ubomi benkonzo yetayara yi-40% yexabiso eliqhelekileyo
I-2. Uxinzelelo lomoya
Ukuba uxinzelelo lwethayile luphakame kakhulu okanye luphantsi kakhulu, luya kuchaphazela ubomi bethayi.
Xa uxinzelelo lomoya lungaphezulu kwe-25% kunexabiso eliqhelekileyo, ubomi baserensi buya kuncitshiswa nge-10% {2}}%,
Xa uxinzelelo lomoya lungaphantsi kwe-25% kunexabiso eliqhelekileyo, ubomi baserensi buya kuncitshiswa ngama-20%
3. Ubushushu
Ukucinga: ukuthatha ama-30 degrees zeTire njengexabiso eliqhelekileyo, ukunxiba itayara ku-100%;
Xa iqondo lobushushu le-time lingama-50 degrees, ukunxiba ubomi bethayi yi-80% yexabiso eliqhelekileyo;
Xa iqondo lokushisa lingama-70 degrees, ukunxiba ubomi bethayi ngama-70% yexabiso eliqhelekileyo
Iimeko ezine, zokuqhuba
Ukucinga; Ukuthatha indlela egudileyo yesamente njengomgangatho, itayara inxiba ubomi yi-100%
Xa imoto isebenza ngendlela eqhelekileyo egayiweyo, itayara inxiba ubomi ngama-90% exabiso eliqhelekileyo
Xa imoto iqhuba kwinxalenye yendlela yegrabile, itayara inxiba ubomi ngama-70% exabiso eliqhelekileyo
Xa imoto isebenza entlabathini kunye neendlela zegrabile, itayara inxiba i-60% yexabiso eliqhelekileyo
Xa imoto isebenza ngendlela engafakwanga, itayara inxiba ubomi ngama-50% exabiso eliqhelekileyo