Some numerical questions of draw frame production

 Some numerical question of draw frame production calculation

QUESTION - Calculate the production per shift of 8 hours of the draw frame machine which is running at 85 % efficiency. Speed of 1.25 inches diameter front roller is 300 rpm. The weight of sliver fed is 60 grains per yard. The draft in the machine is 6.2 and the number of doubling is 6. The no. of deliveries per machine is 6.

Question - Find the production of a draw frame per shift of 8 hours in kgs. If a front roller having 2 inches diameter is rotating at 1400 rpm. The efficiency of a machine is 80 %. Delivered sliver hank is 0.15 and tension draft is 1.02