Styrene butadiene rubber (SBR) as compared to natural rubber has
A. Poor tensile strength
B. Poorer resistance
C. Greater amount of heat build up heavy loading
D. All of the above
Answer: Option D
A. Poor tensile strength
B. Poorer resistance
C. Greater amount of heat build up heavy loading
D. All of the above
Answer: Option D
Condensation polymerisation of __________ produces bakelite.
A. Propylene
B. Phenol & formaldehyde
C. Phenol & acetaldehyde
D. Urea & formaldehyde
Polymethyl methacrylate, which is an acrylic resin, is also called
A. Thiokol
B. Plexiglass or lucite
C. Dacron
D. Teflon
A. Improving the stretchability
B. Dyeing/colouring
C. Detergent solution washing
D. Glycol soaking
__________ scrap can be recycled & reutilised.
A. Bakelite
B. Epoxy resin
C. Polythene
D. None of these
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