a) Kordhi gacanta riixida si loo daboolo baahiyaha tababbarka ee kooxaha kala duwan.
b) Shaqada barkinta degdega ah ee hagaajinta waxay dabooli kartaa baahida dad kala duwan.
c) Labada shaqo waxay jimicsi karaan muruqyo badan si ay dad kala duwan u isticmaalaan.
d) Iyada oo la adeegsanayo hab xaddidan si loo hubiyo badbaadada tababaraha.
e) Iyada oo leh injineer xoog sare leh daboolka ilaalinta tuubada caaga ah.