Question

4) [10 pts] Flat-belt drive efficiency The mechanical efficiency of a flat-belt drive is approximately 98 percent. Because of its high value, the efficiency is often neglected. If a designer should choose to include it, where would he or she insert it in the flat-belt protocol? O Har H. Hd = Hom Kindeff O HA= Hj = Hom Keff cil An efficiency of less than unity lowers the output for a given input. Since the object of the drive is the output, the efficiency must be incorporated such that the belt's capacity is increased. The design power would thus be expressed as Hd = Hankind eft

Answer 1

Efficiency describes the ratio of output power to input power.

if the efficiency is less than unity then the output power become lesser than designed power so designer have to increase design power by dividing output power to efficiency and hense if designer wants to include efficiency in the design power then correct option is c) or 3rd

or in other word, efficiency must be incorporated such that the belt's capacity is increased. so the 3rd option is correct.