Jaranjarooyinka dahaadhka ah ayaa inta badan loo isticmaalaa sidii qalab fuulitaan gaar ah oo loogu talagalay in lagu noolaado ka shaqeynta injineernimada korontada, injineernimada isgaarsiinta, injineernimada korantada, injineernimada tamarta biyaha, iwm. Sifooyinka dahaarka wanaagsan ee jaranjarada dahaarka ayaa hubiya badbaadada nolosha shaqaalaha ilaa xadka ugu badan.