Kubyarani kimwe mu bice bikoreshwa cyane mubukanishi, bitwara kuzenguruka no gusubiranamo kwizengurutsa, kugirango urujya n'uruza rworoshye kandi rushyigikire. Niba imiyoboro ikoreshwa, guterana no kwambara birashobora kugabanuka. Kurundi ruhande, niba ubwiza bwikigereranyo ari buke, bizatera imashini kunanirwa, bityo gutwara bifatwa nkimwe mubice byingenzi byubukanishi.

Hariho ubwoko bubiri bwingenzi bwo kwifata: kunyerera kandikuzunguruka.

Ikibaya:

Ubusanzwe ibibaya bigizwe nintebe yo gutwara hamwe nigihuru cyera. Muburyo busanzwe, uruzitiro ruba ruhuye neza nuburinganire. Irashobora kurwanya umuvuduko mwinshi ningaruka zumutwaro. Ibikoresho byo mu kibaya bikoreshwa muri moteri yimodoka, amato na mashini.

Ni firime ya peteroli ishyigikira kuzunguruka. Filime yamavuta ni firime yoroheje yamavuta. Iyo ubushyuhe bwamavuta buzamutse cyangwa burenze urugero, firime yamavuta izagabanuka, itera ibyuma kandi itera gutwikwa.

Ibindi bice birimo:

1. Umutwaro wemewe ni munini, kunyeganyega n urusaku ni bito, kandi ibikorwa birashobora gutuza.

2. Mugukora amavuta ya reta no kuyitaho, ubuzima bwa serivisi burashobora gukoreshwa igice cya burundu.

Kuzunguruka：

Ibikoresho bizunguruka bifite umupira cyangwa uruziga (uruziga ruzengurutse) kugirango bigabanye guhangana. Ibizunguruka bizunguruka birimo: imipira yimbitse yumupira, imipira ihuza imipira, imipira yikurikiranya, ibyuma bisunika, nibindi.

Ibindi bice birimo:

1. Gutangira hasi.

2. Ugereranije no kunyerera, habaho guterana amagambo.

3.Kubera ubunini nibisobanuro byemewe, biroroshye kugura.

Mu gusoza, ibyuma ni kimwe mu bice bikoreshwa cyane (ibice bisanzwe) mugushushanya. Gukoresha ibyuma neza birashobora kunoza imikorere yibicuruzwa no kugabanya ibiciro, bityo rero ni ngombwa cyane kumenya ubumenyi bujyanye no kwishyiriraho.