Chemical Engineering MCQs

Page No. 328

Polyvinyl chloride (PVC) ____________________?


aIs produced by Polycondensation reaction

✖


bUses either emulsion or suspension polymerisation methods

✓


cCan be made thermosetting by adding a plasticiser

✖


dSoftening temperature is 200°C

✖



Polyurethane cannot be used to make____________________?


aAutomobile cushion

✖


bThermal insulation in refrigerator

✖


cCoating and adhesive

✖


dFibre reinforced plastic (FRP)

✓



Thermosetting plastic materials___________________?


aCan be repeatedly melted

✖


bIs useful for melt casting

✖


cCannot be melted after forming

✓


dIs useful for spinning

✖



Dacron is a _____________________________?


aCondensation polymerisation product of Hexamethylene diamine and adipic acid

✖


bCondensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol

✖


cThermosetting material

✖


dNone of these

✓


View Answer None of these

Collapsible tubes for tooth paste are produced by _____________ extrusion?


aDirect

✖


bIndirect

✖


cImpact

✓


dNone of these

✖


View Answer Impact

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


aThermoplastic

✖


bThermosetting

✓


cLinear

✖


dGlass like transparent

✖


View Answer Thermosetting

Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation ?


aPVC

✓


bBakelite

✖


cPTFE

✖


dEpoxy resin

✖


View Answer PVC

Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their________________?


aMolecular sizes

✖


bMagnitude of intermolecular forces

✓


cResistance to heat

✖


dPolymerisation mechanism

✖



Terylene is a/an_________________?


aAddition polymer

✖


bPoly amide

✖


cHomopolymer

✖


dNone of these

✓


View Answer None of these

____________ is a copolymer?


aStyrene butadiene rubber (SBR)

✓


bNeoprene

✖


cPVC

✖


dNone of these

✖



Goto Page No.

Page 328 of 843

Alphabetical MCQs Categories
—

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"
—

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan