Which of the following sets contains only addition polymers?
A. Polyethylene, polypropylene, terylene
B. Polyethylene, PVC, acrilan
C. Buna-S, nylon, polybutadiene
D. Bakelite, PVC, polyethylene
Answer: Option B
This Question Belongs to Metallurgical Engineering >> Miscellaneous In Metallurgy
The extending the polymer chain by successive addition of monomers units is called
A. Propagation
B. Termination
C. Both A and B
D. None of these
If Reynolds number is greater than 1, then the
A. Viscous force is larger than the inertia force
B. inertia force is larger than the viscous force
C. inertia force is larger than the surface tension force
D. inertia force is larger than the gravitational force
Which is the correct (degree) temperature range for spherodized carbide in low carbon steel
A. 750-950°C
B. 950-1150°C
C. 550-750°C
D. None of these
Join The Discussion