Chemical Engineering MCQs

Page No. 275

Orsat apparatus is meant for ___________________?


aGravimetric analysis of flue gas


bFinding ouFinding out combustion efficiencyt combustion efficiency


cDirect determination of nitrogen in flue gas by absorbing it in ammoniacal cuprous chloride


dNone of these


View Answer None of these

Yield of coke oven gas in low temperature carbonisation of coal is about ______________ Nm3 /ton of dry coal?


a60


b160


c500


d750


View Answer 160

Blast furnace gas burns with a bluish flame, because of the presence of____________________?


aCO


bCH4


cCO2


dS


View Answer CO

Calorific value of pitch creosote mixture (PCM) i.e., C.T.F.-200 is about________________?


a8800 kcal/m3


b8800 kcal/kg


cSame as that of coal middling


d25000 kcal/kg


View Answer 8800 kcal/kg

Fuel gases containing hydrocarbons (e.g. coke oven gas) are not preheated before burning, mainly because __________________?


aThe hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot


bIt reduces its calorific value tremendously


cIt reduces its flame temperature tremendously


dThere are chances of explosion during preheating



Calorific values of both the solid as well as the liquid fuels can be determined by ______________ calorimeter?


aBomb


bBoy’s


cJunkers


dNone of these


View Answer Bomb

Incomplete combustion of fuel in the furnace is judged by high _____________ of the flue gases?


aCO content


bDew point


cCO2 content


dO2 content


View Answer CO content

Calorific value of bituminous coal may be around ______________ Kcal/kg?


a500


b1500


c6500


d20000


View Answer 6500

Stack heat losses can be minimised by________________?


aControlling the excess air


bOxygen enrichment of combustion air


cUsing low c.v. fuels


dMaintaining proper draft in the furnace



Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called_________________?


aBack draughting


bBanking


cUnder pressurising


dNone of these


View Answer Banking

Goto Page No.

Page 275 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