Cleaning efficiency of step cleaned is 60% and monocylinder cleaner is 70%. If 100 kg cotton with 6% trash is fed in these two machines in series (firol in step cleaner and then in monocylinder cleaner), what would be the trash % in the cotton after passing through these two machines.

Which of the following polymer type can be used for fibre formation

Acrylic fibre is popularly produced through ...........spinning

Which one of the following statement is not correct about acrylic fibre ?

The most widely used method of polymerisation for production of acrylic polymer is

Among the following given fibres, the crystallintyis developed while spinning at a speed of 3000 m/min under normal moisture containing environment for