Chemical Engineering MCQs

Page No. 334

Polyvinyl acetate is never used for making_________________?


aMoulded articles


bFibres


cAdhesives


dAll A., B. & C.


View Answer Moulded articles

Thermosetting resins/polymers as compared to thermoplastic ones are ____________________?


aSoluble in all organic solvents


bMore brittle


cFormed by addition polymerisation only


dEasily reshaped & reused


View Answer More brittle

Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA) ?


aPerspex


bLucite


cPlexiglass


dTeflon


View Answer Teflon

In case of wet spinning of polymers, the polymer solution is forced through spinnerates into, a coagulating bath to give a filament form. Wet spinning is not used in case of the _____________ fibres?


aViscose rayon


bAcrylic


cPolyvinyl acetate


dSaturated polyester


View Answer Saturated polyester

Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the ___________________?


aElectrical insulation purpose


bTanning of leather


cStrengthening of plaster of Paris


dDecorative laminates



Thermal pyrolysis of ethylene dichloride produces ____________________?


aTrichloroethylene


bVinyl chloride


cEthanol amine


dEthylene oxide


View Answer Vinyl chloride

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 ___________________?


aDensities


bMelting point


cTensile strength


dHardness, rigidity & brittleness



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


aAluminium triethyl activated with TiCl4


bPlatinum


cMolybdenum


dNickel



Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is__________________?


a7 kgf/cm2 and 70 °C


b1000 kgf/cm2 and 100°C


c7 kgf/cm2 and 700°C


d1 kgf/cm2 (gage) and 70°C


View Answer 7 kgf/cm2 and 70 °C

Elastomers are__________________?


aThermosetting material


bExemplified by protein derivatives


cHaving high flexural strength


dHaving very high tensile strength and heat resistance



Goto Page No.

Page 334 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