Chemical Engineering MCQs

Page No. 500

Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to _____________________?


a5 cms


b40% of the I.D. of the shell


c25 cms


dI.D. of the shell


View Answer 5 cms

Overall mass transfer co-efficient in case of absorption of __________ in water is based on the gas film co-efficient only, as the mass transfer process is gas film (phase) controlling ?


aCO2


bSO2


cNH3


dNone of these


View Answer NH3

Commercial packed scrubbers are normally designed for a pressure drop range of ______________ mm water column per metre of packed height?


a4-8


b17-34


c52-68


d88-105


View Answer 17-34

The slope of operating line in the rectifying section of a distillation column is unity, if the reflux ratio is___________________?


a0


b


c1


dMinimum


View Answer

For turbine agitator, the impeller diameter is about_________________?


a0.3 to 0.5 d


b0.1 to 0.2 d


c0.65 to 0.85 d


d0.95 d


View Answer 0.3 to 0.5 d

The optimum size ratio for two mixed reactors in series depends on the kinetics of the reaction and the conversion level. For reaction orders more than one, the_________________?


aEqual sized reactors are the best


bSmaller reactor should come first


cLarger reactor should come first


dNone of these



Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is _____________ the longitudinal stress?


aHalf


bEqual to


cTwice


dEight times


View Answer Twice

The thickness of heat transfer plates used in the plate type heat exchanger ranges from _____________ mm, pressed in a single piece provided with grooves & corrugations?


a0.3 to 0.8


b1.25 to 3.125


c3.5 to 7.0


d8 to12


View Answer 1.25 to 3.125

The ratio of down take area to cross-sectional area of the tube, for calandria type evaporator ranges from_________________?


a0.5 to 1


b1 to 1.5


c1.5 to 2


d2 to 2.5


View Answer 0.5 to 1

A cylindrical pressure vessel of volume 6 πm3 has to be designed to withstand a maximum internal pressure of 10 atm. The allowable design stress of the material is 125N/mm2 and corrosion allowance is 2 mm. The thickness of the vessel for a length/diameter ratio of 3 will be close to________________?


a5 mm


b6 mm


c8 mm


d10 mm


View Answer 10 mm

Goto Page No.

Page 500 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