Rajasthan Technical Education Second Year Paper 2016 Additives and Compounding of plastics

Rajasthan Technical Education Second Year Paper 2016 Additives and Compounding of plastics

Process of mixing the ingredients into polymer to acheive the desired properties is
(a) Processing
(b) Compounding
(c) Mixing
(d) Manufacturing

Which one is not a polymer additive ?
(a) Filler
(b) Plasticizer
(c) Transducer
(d) Antioxidant

All polymers undergo oxidation reaction with
(a) Nitrogen
(b) Carban Dioxide
(c) Hydgrogen
(d) Oxygen

Addition of antioxidants is most commonly used method of
(a) Stabilization
(b) Plasticization
(c) Hydrogenation
(d) Polymerisation

Metal deactivators retard the efficiency of
(a) Thermal degradation
(b) Photo-oxidation
(c) Metal catalysed oxidation
(d) Gravitation

Most suitable metal deactivators are
(a) Phenols
(b) Chelating agents
(c) Hydro peroxides
(d) Initiators

Cellular structure in plastic mass is introduced by
(a) Antioxidants
(b) Antisatic agents
(c) Blowing agents
(d) Metals

Foamed plastics have property of greater absorption of
(a) Impact energy
(b) Heat
(c) Electric current
(d) Neutrons

Di-octyl phthalate (DOP) is a very good
(a) Stabilizer
(b) Filler
(c) Plasticizer
(d) None of these

Plasticizers are added to the polymer to improve their
(a) Hardness
(b) Flexibility
(c) Rigidity
(d) Transparency

Which PVC resin is used in making plastisols ?
(a) Emulsion resin
(b) Suspension resin
(c) Both
(d) None of these

With increasing plasticizer content the volume resistivity of plasticized PVC
(a) Decreases
(b) Increases
(c) Both are true
(d) Does not change

Prime consumer of heat stabilizer is
(a) HDPE
(b) LDPE
(c) PVC
(d) PMMA

Phot-oxidative degradation of polymers is reduced by
(a) Heat stabilier
(b) Light stabilizer
(c) Metal complexes
(d) Metal salts

Chlorine containing compounds are very good
(a) Coourants
(b) Antioxidants
(c) Flame retarders
(d) None of these