Chemical Engineering MCQs

Page No. 344

Temperature and gage pressure maintained during the manufacture of hot SBR (styrene butadiene rubber) are____________________?


a50°C and 3 – 4 kg/cm2

✓


b50°C and 1 kgf/cm2

✖


c250°C and 10 kgf/cm2

✖


d250°C and 1 kgf/cm2

✖



Glyptal used in the manufacture of paints & lacquers is a _____________ polymer?


aPolyamide

✖


bPolystyrene

✖


cPolyester

✓


dPolyacrylonitrile

✖


View Answer Polyester

Main constituent of cotton fiber is __________________?


aLignin

✖


bCellulose

✓


cStarch

✖


dGelatine

✖


View Answer Cellulose

Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ______________ resins?


aEpoxy

✖


bPhenol formaldehyde

✖


cUrea formaldehyde

✓


dMelamine formaldehyde

✖


View Answer Urea formaldehyde

Thermoplastic resins usually____________________?


aRemain hard as long as they are hot

✖


bCannot be reclaimed from waste

✖


cPermanent setting resins

✖


dLess brittle than thermosetting resins

✓



Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties?


aThermoplastic

✖


bThermosetting

✖


cElastometric

✓


dBrittleness

✖


View Answer Elastometric

Low pressure Zeigler process of polythene manufacture____________________?


aEmploys a pressure of 30 kgf/cm2

✖


bAchieves an yield of 95-98% based on ethylene

✓


cProduces very low density polythene

✖


dDoes not use any catalyst for polymerisation

✖



_______________ practically possess no elasticity?


aVulcanite or ebonite

✓


bSpandex fibre

✖


cPolysulphide rubber

✖


dPolysulphide rubber

✖


View Answer Vulcanite or ebonite

Buna-S is a _______________ material?


aFibrous

✖


bPlastic

✖


cResinous

✖


dRubbery

✓


View Answer Rubbery

Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids ?


aStarch

✖


bCellulose

✖


cProteins

✓


dNucleic acids

✖


View Answer Proteins

Goto Page No.

Page 344 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