Related Questions

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 used as non-stick coating for cooking utensils?
A Perspex
B Styrofoam
C Polystyrene
D Teflon
Which pair of prepositions is appropriate? Hohn is stick __ his pricipal, but jim is stick __ nothing?
A with,to
B to with
C to.at
D of.for
How many pieces of 85 cm length stick can be cut from a 42.5 meters long stick?
A 30
B 40
C 50
D 60
The idiom 'from frying pan to fire' means
A to jump
B to be in a worse position
C to get hurnt badly
D to get excited
Thermosetting polymers as compared to thermoplastic polymers
A Are formed by addition polymerisation
B Have three dimensional structure
C Have linear structure
D None of these
Branched chair polymers as compared to linear polymers have
A Higher melting point
B Higher tensile strength
C Lower density
D None of these
In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher
A Densities
B Melting point
C Tensile strength
D Hardness, rigidity & brittleness
Branched chain polymers compared to linear polymers have higher
A Density
B Tensile strength
C Melting point
D Degree of irregularity in atomic packing
Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten
A Teflon
B Bakelite
C SBR
D PVC

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