B:-Volume flow rate and capillary diameter
C:-Shear stress and capillary diameter
D:-None of these
Correct Answer:- Option-B
Question69:-In an isometric creep curve
A:-Stress is plot against strain
B:-Strain is plotted against time
C:-Stress is plotted against log time
D:-Strain is plotted against log time
Correct Answer:- Option-C
Question70:-Which of the following involves the use of a rotor?
A:-MDR
-Mooney viscometer
C:-Rubber process analyzer
D:-Alll of these
Correct Answer:- Option-B
Question71:-The ply angle in radial tyres is close to degrees.
A:-37
-45
0:55
D:-90
Correct Answer:- Option-D
Question72:-Which of the following is a slow accelerator?

D:-MBT

Correct Answer:- Option-A
Question73:-Caprolactam disulphide is a

A:-Activator

B:-Monomer

C:-Sulphur donor

D:-Accelerator

Correct Answer:- Option-C
Question74:-Chemical mastication is operational after (deg. Centigrade)

A:-100

B:-120

C:-140

D:-150

Correct Answer:- Option-B
Question75:-Transmissibility is defined as

A:-Output amplitude / input amplitude

B:-Output frequency / input frequency

C:-Loss modulus / storage modulus

D:-None of these

Correct Answer:- Option-A
Question76:-For good vibration isolation

A:-Transmissibility must be > 1

B:-Natural frequency must be high

C:-Natural frequency must be low

D:-Damping must be high

Correct Answer:- Option-C
Question77:-DBP number is used to measure

A:-C black particle size

B:-C black surface area

C:-Surface functional group

D:-C black structure

Correct Answer:- Option-D
Question78:-BET method uses gas to measure surface area.