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
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
phosphates ----- to most farm land in America.
A need added
B need to add
C need to be adding
D need to be added
phosphates ---to most farm lands in Bangladesh .
A need to be adding
B need to be added
C need added
D need to add
Plasticisers are added to polymers to improve their
A Tensile strength
B Softness & flexibility
C Acid resistance
D Alkali resistance
Plasticisers are high boiling liquids added to plastic polymers to impart toughness and flexibility at ordinary temperature. Which of the following is not a plasticiser?
A Ethylene glycol
B Stearic acid estors
C Tricresyl phosphate
D Esters of phthalic acid
Which of the following sets what kind of line decorations are added to an element, such as underlines, overlines, etc?
A text-style
B text-decoration
C text-line
D text-decoration-line

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