Polycaprolactam is nothing but __________________?
A. Orlon
B. Nylon-66
C. Nylon-6
D. Saran
Polymer Technology
Poly Vinyl chloride (PVC) is a ________________ material?
Poly Vinyl chloride (PVC) is a ________________ material?
A. Thermoplastic
B. Thermosetting
C. Fibrous
D. Chemically active
_____________ moulding is used for shaping of thermosetting plastics exclusively?
_____________ moulding is used for shag of thermosetting plastics exclusively?
A. Compression
B. Injection
C. Transfer
D. Extrusion
Cellulose is the main constituent of most ______________ fibres?
Cellulose is the main constituent of most ______________ fibres?
A. Acrylic
B. Spandex
C. Synthetic
D. Natural
The monomer of natural rubber is A. DMT ______________________?
The monomer of natural rubber is A. DMT ______________________?
B. Isoprene
C. 2 methyl-1 propane
D. Both B. and C.
Starting material for the production of SBR is ____________________?
Starting material for the production of SBR is ____________________?
A. Ethyl alcohol
B. Ethylene
C. Both A. & B.
D. Neither A. nor B.
Polymerisation process in which two or more monomers of chemically different nature take part is called__________________?
Polymerisation process in which two or more monomers of chemically different nature take part is called__________________?
A. Copolymerisation
B. Addition polymerisation
C. Chain polymerisation
D. None of these
Tubeless tyres are made of ______________ rubber, which is a co-polymer of isoprene & isobutylene?
Tubeless tyres are made of ______________ rubber, which is a co-polymer of isoprene & isobutylene?
A. Nitrile
B. Silicone
C. Neoprene
D. Butyl
All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it cannot be used for the production of plastic_______________?
All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it cannot be used for the production of plastic_______________?
A. Filaments
B. Pipes
C. Buckets
D. Tubings
Plasticisers are added to synthetic plastics to ________________?
Plasticisers are added to synthetic plastics to ________________?
A. Impart flexibility
B. Improve workability during fabrication
C. Develop new improved properties not present in the original resin
D. All A., B. and C.