chemical engineering polymer technology MCQs – Page 6

Practise multiple-choice questions from chemical engineering polymer technology for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering polymer technology Mcqs
101. Dacron is a/an___________________?
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A. Addition polymer

B. Condensation polymer

C. Polyester

D. Both B. and C.
102. Which of the following is generally not used as eord for synthetic rubber tyre casing ?
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A. Dacron

B. None of these

C. Cellulose

D. Nylon

103. Phthalic anhydride is used___________________?
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A. As plasticisers

B. In insecticides manufacture

C. In making PVC

D. For making nylon-6

104. ____________ is a copolymer?
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A. Neoprene

B. None of these

C. Styrene butadiene rubber (SBR)

D. PVC

105. Hot drink (e.g., tea) cups are usually made of _____________________?
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A. Polypropylene

B. Polythene

C. PVC

D. Polystyrene
106. The generic chemical name for the class of polymers which are commercially known as nylons is______________________?
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A. Polyamide

B. Polyolefins

C. Polyacrylate

D. Polyurethane

107. 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 ___________________?
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A. Tensile strength

B. Melting point

C. Densities

D. Hardness, rigidity & brittleness
108. Viscose rayon is _______________?
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A. None of these

B. Cellulose nitrate

C. Regenerated cellulose nitrate

D. Regenerated cellulose acetate

109. _____________ tubes are good substitute for human blood vessels on heart by-pass operation?
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A. Polythene

B. PVC

C. Polystyrene

D. Teflon/Dacron
110. Terylene is_________________?
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A. Same as Dacron

B. A polyester

C. Both A. & B.

D. Neither A. nor B.

111. Which of the following is not a polymer of two monomers ?
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A. None of these

B. SBR

C. Bakelite

D. Teflon
112. Most of the plastics are safe to be used upto a maximum temperature of ______________ C?
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A. 150

B. 100

C. 350

D. 450

113. Properties of a polymer is affected by the____________________?
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A. Chain length

B. Intermolecular forces

C. Both A. and B.

D. None of these

114. Thermosetting resins/polymers as compared to thermoplastic ones are ____________________?
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A. Easily reshaped & reused

B. Soluble in all organic solvents

C. More brittle

D. Formed by addition polymerisation only

115. Catalyst used in the production of high density polythene by low pressure Ziegler process is ____________________?
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A. Nickel

B. Molybdenum

C. Aluminium triethyl activated with TiCl4

D. Platinum

116. Most commonly used rubber vulcanisation agent is __________________?
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A. Bromine

B. Alumina

C. Sulphur

D. Platinum

117. Synthetic rubber___________________?
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A. Is softer at higher temperature

B. Is brittle at low temperature

C. Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases

D. Deforms, if stretched to double of its original dimension

118. Cellulose is the main constituent of most ______________ fibres?
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A. Acrylic

B. Spandex

C. Synthetic

D. Natural
119. Which of the following is not present in bagasse fiber?
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A. Pentogens

B. Lignin

C. Cellulose

D. None of these
120. Nylon-66 is a polyamide of __________________?
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A. Hexamethylene diamine and adipic acid

B. Vinyl chloride and formaldehyde

C. None of these

D. Adipic acid and methyl amine