Related Questions

In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?
A Tin
B Lead
C Zinc
D Glass
While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous or crystalline. The crystalline polymers are characterised by the
A Low impact strength
B High flexibility
C Better finish and surface appearance
D High plastic deformation
Which of the following is an amorphous material?
A Mica
B Silver
C Lead
D Glass
Amorphous material is one
A In which atoms align themselves in a geometric pattern upon solidification
B In which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid
C Which is not attacked by phosphorous
D Which emits fumes on melting
An example of amorphous material is
A Zinc
B Lead
C Silver
D Glass
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
Nimbus clouds generally have ----and are amorphous in appearance.
A an uniform dark color
B a uniformly dark color
C uniformly the dark color
D uniform dark color
With increase in temperature, the thermal conductivity of non-metallic amorphous solids
A Decreases
B Increases
C Remains constant
D First decreases upto certain temperature and then increases
Thermal conductivity of non-metallic amorphous solids with decrease in temperature
A Increases
B Decreases
C Remain constant
D May increase or decrease depending on temperature
An orthotropic material is a special class of anisotropic material, which is described by their properties in three perpendicular directions. An example of orthotropic material is
A Stainless steel
B Cast iron
C Wood
D Teflon

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