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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

Styrene butadiene rubber (SBR) is never used for making__________________?
A Coated fabrics
B Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
C Gaskets
D Soles of shoes
Correct Answer: Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
The process involved in converting rubber into a thin sheet or coating it on fabric is called__________________?
A Extrusion
B Mastication
C Calendaring
D Vulcanisation
Correct Answer: Calendaring
In nylon-6, the number 6 represents the total number of_________________?
A Carbon atoms in the ring
B Carbon atoms in the linear polymer chain
C Nitrogen atoms in the ring
D Hydrogen atoms in the ring
Correct Answer: Carbon atoms in the linear polymer chain
Thermocol is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten__________________?
A Saturated polyester
B Polyurethane
C Polystyrene
D Either B. or C.
Correct Answer: Either B. or C.
Phenol formaldehyde __________________?
A Employs addition polymerisation
B Employs condensation polymerisation
C Is a monomer
D Is an abrasive material
Correct Answer: Employs condensation polymerisation
Which of the following is not a condensation polymer ?
A Bakelite
B Melamine polymer
C Poly-methyl-methacrylate (PMMA)
D None of these
Correct Answer: Poly-methyl-methacrylate (PMMA)
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
Correct Answer: Polyacrylonitrile
Styrene which is a monomer for the production of polystyrene, is commercially produced by the __________________?
A Catalytic dehydrogenation of ethyl benzene
B Dehydration of ethyl alcohol followed by hydrogenation
C Reacting ethylene oxide with acetaldehyde
D Fermentation of starch
Correct Answer: Catalytic dehydrogenation of ethyl benzene
_____________ polythene is most prone to stress-cracking ?
A High density
B Low density
C Cross-linked
D Linear low density
Correct Answer: High density
Polymers are_________________?
A Micro-molecules
B Macromolecules
C Sub-micromolecules
D None of these
Correct Answer: Macromolecules
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