Chemical Engineering MCQs

Page No. 22

The reason for excessive clinker formation in gas producers is the_____________________?


aUse of coal/coke containing a high % of fines and ash


bUse of fuel having too low an ash fusion temperature


cDevelopment of hot spots in the fuel bed and an abnormally high rate of gasification


dAll A., B. and C.


View Answer All A., B. and C.

In furnaces operating at very high temperature (say) 1250°C, e.g. soaking pit), the maximum heat transfer takes place by__________________?


aConduction


bConvection


cRadiation


dCannot be predicted


View Answer Radiation

Pick out the wrong statement?66641


aThe toughness of a material decreases, when it is heated


bCrane hooks are normally made of wrought iron


cCold working of a metal decreases its fatigue strength


dThe temperature at which new grains are formed in a metal is known as the recrystallisation temperature



Amount of coal lost in ash particle, which is carried through the boiler system, depends upon the__________________?


aPhysical nature, ash content and fineness of the coal


bAmount of excess air supplied and load on the boiler


cType of burner and combustion chamber


dAll A., B. and C.


View Answer All A., B. and C.

Coke ovens in steel plant are heated by____________________?


aElectricity


bBlast furnace gas/mixed gas


cCoke oven gas


dBoth B. and C.


View Answer Both B. and C.

Which of the following does not come under the category of ‘secondary nutrient’ for plant growth ?


aCalcium


bMagnesium


cSulphur


dOxygen


View Answer Oxygen

Specific heating capacity of a furnace is expressed as_____________________?


aWeight heated/hr


bWeight heated/furnace volume


cWeight heated/hr/furnace volume


dNone of these



Unit of furnace loading is____________________?


aTon stock/hr/m2 hearth area


bTon stock/hr


cTon stock/m2 hearth area


dBoth B. and C.



Which of the following fertilizers is used as a cattle feed ?


aUrea


bCalcium ammonium nitrate


cSuperphosphate


dAmmonium sulphate


View Answer Urea

Thermal efficiency of a limestone calcination rotary kiln may be around ______________ percent?


a20


b40


c65


d80


View Answer 40

Goto Page No.

Page 22 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