Chemical Engineering - Polymer Technology

1. 

Which of the following is not the commercial name of polymethylmethacrylate (PMMA) ?

A. Perspex
B. Lucite
C. Plexiglass
D. Teflon

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

2. 

Density of low density polythene is about __________ gm/c.c.

A. 0.38
B. 0.56
C. 0.81
D. 0.91

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

3. 

In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is

A. terylene
B. polybutadiene
C. PVC
D. polypropylene

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

4. 

Gutta parcha rubber is

A. soft & tacky at room temperature.
B. an isomer of natural rubber.
C. a thermosetting resin.
D. recovered by coagulation of rubber latex.

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

5. 

The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is

A. polyvinyl alcohol
B. polyvinyl acetale
C. polyvinyl butyral
D. PVC

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

1 2 3 4 5 6 7 8 9 10 Next »