Official Answer
Answer
A aikace-aikace inda rabon tsayin kyauta zuwa ma'anar diamita ($H_f/D_m$) ya wuce 1.5, igiyar ruwan ruwan tana da saurin kisa ta gefe a ƙarƙashin kaya. Ana amfani da farantin tsakiya ko sandar jagora na ciki don samar da kwanciyar hankali a gefe. Ilimin kimiyyar lissafi yana kama da ƙulla ginshiƙan siririyar; Mahimmin nauyin ɗaukar nauyi $P_{cr}$ aiki ne na taurin gefen bazara. Yin amfani da jagora yana tabbatar da cewa jujjuyawar ta kasance axial zalla, yana hana bazara daga tuntuɓar bangon da aka dasa da kuma haifar da lalacewa ko ɓarna.
