Chemical Engineering MCQs

Page No. 271

Refractory materials are never used in the construction of _________________?


aSegar cones


bOrton cones


cPressure vessels


dOvens & retorts


View Answer Pressure vessels

Chrome magnesite bricks are used in the_________________?


aSide walls of soaking pits and arc furnaces


bCopper melting furnaces & converters


cBurner block of glass tanks


dAll A., B. and C.


View Answer All A., B. and C.

Roof of a basic open hearth furnace is lined with ______________ bricks?


aSilica


bFireclay


cDolomite


dMagnesite


View Answer Silica

Which of the following bricks has the most close values of RUL and PCE ?


aSilica bricks


bFireclay bricks


cHigh alumina bricks


dTar dolomite bricks


View Answer Silica bricks

Which is the most stable crystalline form of silica at room temperature ?


aQuartz


bCristobalite


cTridymite


dNone of these


View Answer Quartz

Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns ?


a1800


b2200


c2400


d2700


View Answer 2700

Carbon refractories are exclusively used in the_________________?


aHearth of blast furnace


bWalls of coke oven


cRegenerators of coke oven


dSide wall of soaking pits



Silicon carbide refractories have very low ___________________?


aRefractoriness (< 1700°C)


bThermal conductivity


cResistance to thermal shock


dNone of these


View Answer None of these

Refractory castables are used for__________________?


aProducing monolithic linings


bPatch work


cMinimising the number of joints in the structure


dAll A., B. and C.


View Answer All A., B. and C.

Which of the following has the lowest electrical resistivity ?


aGraphite


bFireclay


cAlumina


dZircon


View Answer Graphite

Goto Page No.

Page 271 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