The three sketches in fig. 7-74 show three spans each supporting a weight of one ton, and it will be seen that, as when using slings, the greater the angle between the legs of the span the higher is the tension they have to bear.
Iziketshi ezikumboniso- 7-74 zibonisa imigama ezixhasa amandla etoni, kwaye ingabonwa ukuba xa usebenzisa izilingi, ukuhla kwe-engile phakathi kwemilenze kwimigama ephakamileyo yinto ekufuneka beyigcinile.