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IMP_LEC_FINAL EXAMINATION_PART 1

Authored by Ivan Monteron

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IMP_LEC_FINAL EXAMINATION_PART 1
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic material – a natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression.

Plastics

Wood

Rubber

Metal

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Plastic is made from __________?

Grass

Sand

Fossil Fuel

Raw Plastic

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

is a polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure.

Paper

Ceramic

Rubber

Plastic

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Poly means ____ from the Greek word?

Parts

Many

Units

Small

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks. There are many forms of polymerization and different systems exist to categorize them.

Evaporation

Saturatation

Condensation

Polymerization

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

is any plastic polymer material that becomes pliable or moldable at a certain elevated temperature and solidifies upon cooling. Most thermoplastics have a high molecular weight.

Thermostat

Thermoplastic

Thermosets

Thermal

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A material of uniform composition throughout that cannot be mechanically separated into different materials.

Thermal Plastic

Thermostat Plastic

Heterogeneous Plastic

Homogeneous Plastic

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