poylmer

Multiple Choice

which of the following considered to be composite materials

• a) dental composite

• b) Bone

• c) glass fibre epoxy composite

• d) all of them

Multiple Choice

Glass is considered to be:

• a) amorphous solid

• b) supercooled liquid

• c) biological material

• d) both a,b

Multiple Choice

…............ is the difference in volume of Crystalline material and amorphous material.

• a) Free volume

• b) Normal volume

• c) specific volume.

• d) none of them

Multiple Choice

Something that contains two or more distinct constituent materials or phases.

• A) complex

• B) composite

• C) compound

• D) none of them

Multiple Choice

An interesting approach to producing micro- porous materials is the replication of structures found in …….

• A) the skeletal structures of sea urchins

• B) the skeletal structures of coral

• C)the skeletal structures of Echinoderms

• D) all of them

Multiple Choice

the pacemaker device is a life changing rhodium application

• true

• false

Multiple Choice

Density of amorphous material is more than the crystalline material

• true

• false

Multiple Choice

poly tetra floro ethylene commonly known as teflon

• true

• false

Multiple Choice

- At high Temp the component of long chain break?

• true

• false

Multiple Choice

morphology of composite materials is fibre shape only ?

• true

• false