Mould Technology 03/05/2021

The term ____________ is applied to any organic substance of high molecular weight, which can be formed to any desired shape by moulding.

• Wood

• Plastic

• Sand

• Stone

A monomer on polymerization becomes a _____________________.

• Monomer

• Condensation

• Polymer

• Addition

Single molecule is called _______.

• Polymer

• Polymerization

• Monomer

• Venting

The process of combining molecules of start material in to a long chain under favorable conditions of heat, pressure is __________.

• Polymerization

• Polymer

• Monomer

• Cellulose

Thermoset plastic materials are usually available in the form of ____________.

• Crystals

• Powder

• Granular

• Liquid

An example for Semi-synthetic plastic is _____________.

• Rubber sheet

• Polyvinyl Chloride

• Cellulose

• Thermoplastic

An example for a natural plastic is ___________.

• Teflon

• Rubber sheet

• Cellulose

• Thermoset plastic

Thermoplastic materials are usually available in the form of _______________.

• Crystals

• Powder

• Granular

• Liquid

The Plastic which can be softened, re-softened & reused is ___________.

• Thermoplastic

• Thermoset plastic

The Plastic which can not be re-softened and reused is ___________.

• Thermoplastic

• Thermoset plastic