MCQ on Engineering Plastics

Rajasthan Polytechnic Third Year Paper 2016 – Engineering Plastics

The reactants are used in manufacturing of Polyethylene terephthate
(a) Ethylene Glycol and terephthatic acid
(b) Popylene glycol and terephthalic acid
(c) methylene glycol and ethyl alcohol
(d) Acetic acid and ethyl alcohol

Tg of PET polymer is
(a) 150 degree Celcius
(b) 200 degree Celcius
(c) -300 degree Celcius
(d) 67 degree Celcius

The polymer used for manufacturing of pump impellers
(a) PTFE
(b) PBT
(c) PVC
(d) PET

Tg of PBT is
(a) 40 degree Celcius
(b) 100 degree Celcius
(c) 150 degree Celcius
(d) 200 degree Celcius

The polymer turns yellow after long exposure to U.V light
(a) PVC
(b) Nylon
(c) Polycarbonate
(d) Polyacetals

Polycarbonate polymer is
(a) Amorphous
(b) Semi amorphous
(c) Crystalline
(d) Semi crystalline

The Tg of Polycarbonate polymer is
(a) 100 degree Celcius
(b) 145 degree Celcius
(c) 45 degree Celcius
(d) Zero degree Celcius

The modular switches are formed by
(a) PET
(b) PBT
(c) PC
(d) ABS

The compact disc (CD) is formed by
(a) LDPE
(b) PC
(c) Epoxy
(d) Polycurethane

The full name of PTFE is
(a) Poly tetra fluoro ethylene
(b) Poly tetra fluorine ethylene
(c) Poly tetra furan ethylene
(d) Poly terminated fluoro ethylene