C:-Both of these

D:-None of these

Correct Answer:-Question Cancelled
Question59:-Which of the following is not good for thermoforming?

A:-PP

B:-PE

C:-PF

D:-PS

Correct Answer:- Option-C
Question60:-Which of the following 15 the best for uniform filler dispersion?

A:-Two roll mill

B:-Banbury

C:-Intermix

D:-Kneader

Correct Answer:- Option-A
Question61:-Viscosity has the unit

A:-Pa. S

B:-N/sg. m

C:-Mpa

D:-dN.m.s

Correct Answer:- Option-A
Question62:-Decrease of viscosity with increasing shear rate is known as

A:-Newtonian behaviour

B:-Bingham plastics

C:-Dilatant behaviour

D:-Pseudoplastic behaviour

Correct Answer:- Option-D
Question63:-The unit of shear rate is

A:-meter per second

B:-Per second

C:-meter per second square

D:-Newton per second

Correct Answer:- Option-B
Question64:-Yield stress is shown by

A:-Pseudoplastic materials

B:-Dilatant materials

C:-Bingham plastics

D:-Newtonian liquids

Correct Answer:- Option-C
Question65:-Thixotropy is associated with reduction in viscosity
ith time at constant shear rate

B:-With shear rate

C:-With time and shear rate

D:-With shear stress

Correct Answer:- Option-A
Question66:-In rheology relaxation time is defined as

A:-Viscosity / modulus

B:-Modulus / yield stress

C:-Time for 50% reduction in viscosity

D:-Time for extrudate to recover

Correct Answer:- Option-A
Question67:-Bagley correction is done to account for
effect

B:
C:-Stick-slip effect
D:-Entry effect
Correct Answer:- Option-D

Question68:-Apparent shear rate for a capillary flow is related to
A:-Volume flow rate and ۷۵ ೧00.