Chemical Engineering MCQs

Page No. 12

Which is the most thermally efficient furnace _______________________?


aReheating furnace

✖


bReverberatory furnace

✖


cRotary kilns

✖


dBoiler furnace

✓


View Answer Boiler furnace

Ingress of cold air in the furnaces through cracks, charging doors, openings etc ________________?


aReduces the flue gas temperature and makes the furnace atmosphere oxidising

✖


bIncreases the load on the induced draft fan

✖


cReduces the furnace draught

✖


dAll A., B. and C.

✓


View Answer All A., B. and C.

Fuel economy in furnaces can be achieved by_________________?


aUsing oxygen enriched combustion air

✖


bPreheating the combustion air

✖


cReducing the heat loss through furnace openings & doors

✖


dAll A., B. and C.

✓


View Answer All A., B. and C.

______________ is an indirectly heated furnace?


aOpen hearth furnace

✖


bMuffle furnace

✓


cSoaking pit

✖


dReheating furnace

✖


View Answer Muffle furnace

Furnace pressure is normally controlled by regulating the__________________?


aAir pressure

✖


bFuel gas pressure

✖


cSpeed of I.D. fan

✖


dDamper

✓


View Answer Damper

Which one is not an induced draught furnace ?


aBlast furnace stove

✓


bSintering furnace

✖


cHigh pressure boiler

✖


dNone of these

✖


View Answer Blast furnace stove

Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of_________________?


aGraphite powder

✖


bThoria

✖


cZircon powder

✓


dBeryllium

✖


View Answer Zircon powder

Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an__________________?


aBlast furnace

✖


bSteam boiler

✖


cSalt bath furnace

✓


dAnnealing furnace

✖


View Answer Salt bath furnace

Reducing atmosphere is maintained in a__________________?


aCalcination kiln

✖


bBlast furnace

✓


cSoaking pit

✖


dL.D. converter

✖


View Answer Blast furnace

The amount of combustible escaping unconsumed from the furnace, depends upon the________________?


aAir supplied and furnace temperature

✖


bBurner design (thoroughness of mixing versus stratification)

✖


cAir preheat and the flow of gases in the furnace (mixing by induction, by acceleration or by change of direction)

✖


dAll A., B. and C.

✓


View Answer All A., B. and C.

Goto Page No.

Page 12 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