The zone of the extruder in which mostly melt is homogenized and has a drag flow is

The unit for specific flexural rigidity is

Among the following fibres, which one is having higher sheers modulus ?

For fibres, with respect to creep, the primary creep is

Time dependant elongation of thermoplastic fibres are regarded as

Upon thermal treatment of synthetic fibres amorphous orientation......and crystalline regions changes from ..........to............