chemical engineering MCQs – Page 273

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 Review each marked answer and report any item that may be outdated or unclear.

chemical engineering Mcqs

5441. Which of the following is not a natural fiber ?
0

A. Wool

B. Cotton

C. Viscose rayon

D. Silk

5442. Desirable Micum Index values of metallurgical coke are ___________________?
0

A. M40 > 4% and M10 10% and M10 98% and M10 < 2%

B. M40 > 78% and M10 < 10%

5443. With increase in moisture content of coal, its___________________?
0

A. None of these

B. Caking properties diminish

C. Calorific value increases

D. Swelling during carbonisation becomes excessive

5444. Thermosetting plastic materials___________________?
0

A. Can be repeatedly melted

B. Cannot be melted after forming

C. Is useful for melt casting

D. Is useful for spinning

5445. ______________ fibres are made of polyamides?
0

A. Dacron

B. Nylon

C. Orion

D. Rayon

5446. Which of the following is an elastomer ?
0

A. Thiokol

B. Phenol formaldehyde

C. Polystyrene

D. Urea formaldehyde

5447. Catalyst used in Fischer-Tropsch process is_______________?
0

A. Alumina

B. Nickel

C. Thorium oxide

D. Zinc oxide

5448. Acrilan fibres used for making cloth, carpet & blankets, which is a hard, horny & high melting polymeric material is nothing but____________________?
0

A. Polyamide

B. Saturated polyester

C. Alkyd resin

D. Polyacrylonitrile

5449. Which of the following polymers does not belong to the class of Polyacrylate polymer ?
0

A. None of these

B. Poly Ethyl acrylate

C. PMMA

D. Polyacrylonitrile

5450. Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is __________________?
0

A. Teflon

B. Polyester

C. Bakelite

D. Nylon-66

5451. Styrene butadiene rubber (SBR) is never used for making__________________?
0

A. Coated fabrics

B. Front wheel tyres of aeroplanes (i.e., heavy duty tyres)

C. Gaskets

D. Soles of shoes

5452. Plastic tubes & pipes are generally made by ______________ moulding?
0

A. Compression

B. Injection

C. Transfer

D. Extrusion

5453. Polymethyl methacrylate (PMMA) which is also known as Perspex and is produced by bulk polymerisation of methyl methacrylate is not a ______________ polymer?
0

A. Linear

B. Thermosetting

C. Glass like transparent

D. Thermoplastic

5454. Which of the following is not a condensation polymer ?
0

A. Bakelite

B. None of these

C. Poly-methyl-methacrylate (PMMA)

D. Melamine polymer

5455. Liners of bags are usually made of ____________________?
0

A. Polyesters

B. Polythene

C. Polypropylene

D. PVC

5456. Polymerisation process in which two or more monomers of chemically different nature take part is called__________________?
0

A. None of these

B. Chain polymerisation

C. Copolymerisation

D. Addition polymerisation

5457. Dacron is a _____________________________?
0

A. Thermosetting material

B. None of these

C. Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol

D. Condensation polymerisation product of Hexamethylene diamine and adipic acid

5458. The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is____________________?
0

A. PVC

B. Polyvinyl acetate

C. Polyvinyl alcohol

D. Polyvinyl butyral

5459. Polycaprolactam is____________________?
0

A. Nylon-6

B. Rayon

C. Nylon-66

D. Dacron

5460. A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of_______________________?
0

A. Siloxane elastomers

B. Vinyl polymers

C. Polyamides

D. Urea-formaldehyde resins

Previous Next

Showing 5441 to 5460 of 8709 mcqs