Ipayipi lensimbi yomthungo kanyeipayipi lensimbi engenamthungozihlukaniswa ngokuvumelana nefomu lokucubungula.Ipayipi lensimbi yomthungo ngokuvamile lishiselwe.Ipayipi lensimbi engenamthungo linezindlela ezimbili zokudweba okubandayo nokugoqa okushisayo.Ipayipi lensimbi ye-carbon ngokwezinto ezibonakalayo, futhi ipayipi elivundisiwe lingaphezulu kwepayipi elishiselwe elivuthwa ngemuva kokukhiqizwa.

Ngokuvamile, amashubhu ensimbi angenamthungo asetshenziselwa labo abanezidingo eziphezulu esiphathini sezokuthutha, njengokucindezela, indawo ezungezile, ukugcinwa, ukugqwala, nezinga lokushisa.Amapayipi ensimbi omthungo asetshenziselwa labo abanomfutho ophansi kanye nezidingo zokushisa, njengamapayipi amanzi asekhaya namapayipi egesi.