Chemical Engineering MCQs

Page No. 273

Si percentage in silica refractories used in the walls of coke oven is about______________________?


a45


b60


c80


d95


View Answer 95

In chemical process equipments, the conical bottom heads used, usually has an apex angle of____________________?


a20°


b40°


c60°


d80°


View Answer 60°

Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about ______________ percent?


a5


b20


c35


d55


View Answer 20

Carbon Content by weight in air dried wood may be about _______________ percent?


a10


b25


c50


d80


View Answer 50

Which of the following has the least calorific value (kcal/Nm3) ?


aBlast furnace gas


bCoke oven gas


cSewage gas


dNatural gas


View Answer Blast furnace gas

Turndown ratio of a gas burner is equal to the __________________ ?


aMaximum to minimum heat input ratio


bMaximum to minimum permissible gas flow rate


cBoth A. & B.


dMinimum to maximum heat input ratio


View Answer Both A. & B.

Which of the following gaseous fuels has the lowest calorific value ?


aGobar gas


bRefinery gas


cConverter gas


dBlast furnace gas


View Answer Blast furnace gas

Ignition temperature of a fuel in air is ______________ that in pure oxygen?


aMore than


bLess than


cEqual to


dEither more or less; depends on the type of fuel


View Answer More than

Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of _____________________?


aMgO & Na2CO3


bMgSO4 & BaCl2


cBaSO4 & NaCl


dMgCO3 & NaCl


View Answer MgO & Na2CO3

Higher percentage of ash in coal meant for the production of metallurgical grade coke ___________________?


aDecreases the hardness of coke


bDecreases the abrasion resistance of coke


cCauses brittleness in steel


dNone of these


View Answer None of these

Goto Page No.

Page 273 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