Polymer Technolgy MCQs

Question 1

Bristles of tooth brushes are made of

Accepted Answer

Nylon-66

Answer

Nylon-6

Answer

Polystyrene

Answer

PVC

Question 2

Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its

Accepted Answer

Weathering characteristics

Answer

Elasticity

Answer

Strength

Answer

Plasticity

Question 3

Valcunisation of rubber decreases its

Accepted Answer

Tackiness

Answer

Tensile strength

Answer

Resistance to organic solvents

Answer

Working temperature range

Question 4

Silicone is a/an

Accepted Answer

Inorganic polymer

Answer

Monomer

Answer

Thermoplastic material

Answer

A natural polymer

Question 5

Alkyd resin can not be used for making

Accepted Answer

Fibres

Answer

Plasticiser

Answer

Paint & varnish

Answer

Film forming materials

Question 6

Which of the following polymers is used for making a non stick coating on frying pans?

Accepted Answer

Teflon

Answer

Bakelite

Answer

Perspex

Answer

PVC

Question 7

Synthetic rubber

Accepted Answer

Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases

Answer

Deforms, if stretched to double of its original dimension

Answer

Is brittle at low temperature

Answer

Is softer at higher temperature

Question 8

Which of the following is generally not used as eord for synthetic rubber tyre casing?

Accepted Answer

Cellulose

Answer

Dacron

Answer

Nylon

Answer

None of these

Question 9

Teflon is

Accepted Answer

Polytetra florouethylene (PTFE)

Answer

Phenol formaldehyde

Answer

An inorganic polymer

Answer

A monomer