The general approximate rule for estimating the amount of friction is to allow from one-tenth to one-eighth of the weight to be hoisted for each sheave of the tackle according to whether the tackle is well made and in good condition or of poor quality and badly maintained.
Uqikelelo lomthetho olwenza uqikelelo lokungavisisani luvumeleke ukusuka kwisinye seshumi ukuya kwisinye sesibhozo sobukhulu obunokunyuswa kwenye i shivs zentambo yenqanawa nokokuba intambo zenqanawa zeziwe kakuhle okanye zikumgangatho olungileyo okanye ezingomelelanga okanye ezinesondlo ezingalunga.