Plastic articles are normally produced by _____________ moulding?

Related Mcqs:

Pick out the wrong statement ?

A. For the manufacture of styrene, the major raw materials are benzene and ethylene B. One important copolymer of styrene is SBR, which is widely used in the manufacture of automobile tyres C. Manufacture of phenol by chloroben-zene-eaustic process involves. The chlorination of benzene, causticisation and hydrolysis D. Phenol manufacture by chlorobenzene-caustic process is competitive … Pick out the wrong statement ?Read More...

Neoprene is rendered non-inflammable, because of_____________________?

A. Its cross-linked structure B. Its linear chain structure C. The presence of chlorine atoms in its monomer D. The absence of chlorine atoms in its monomer...

Melt spinning of polymers involves the forcing of polymer melt through spinnerates (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the _____________ fibres?

A. Acrylic B. Polyester C. Nylon 6:6 D. Polypropylene...

Most of the fibre forming polymers are crystalline in nature, one of the exceptions being ______________ which is amorphous in nature?

A. Nylon B. Polyacrylonitrile C. Polypropylene D. Polyester...

Rayon is superior to cotton in making gauge for wound treatment, because rayon_____________________?

A. Is a synthetic polymer B. Does not stick to the wound unlike cotton C. Can absorb over 90% of its own weight of water D. Both B. and C....