Chemical Engineering MCQs

Page No. 505

Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always_________________?


aLess than arithmetic mean value


bMore than arithmetic mean value


cMore than geometric mean value


dBoth B. & C.



The dust collection efficiency of a cyclone separator_________________?


aDecreases with increase in gas flow rate


bIs inversely proportional to the mass of the dust particle


cIs directly proportional to the radius of the dust particle path


dNone of these


View Answer None of these

Baffle spacing is generally _________________ the I.D. of the shell ?


aMore than


bNot greater than


cNot less than one fifth of


dBoth B. and C.


View Answer Both B. and C.

In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a __________________?


aClearance of 25-75 mm


bCap pitch of 1.3-2 times the cap diameter


cEither A. or B.


dNeither A. nor B.


View Answer Either A. or B.

In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube) ?


a4(P2 – πd2/4)/πd


b(P2 – rd2/4)/rd


c4P2/πd


dπd/4P2


View Answer 4(P2 – πd2/4)/πd

For identical operating conditions, the pressure drop over _______________ tray is the highest out of the following?


aSieve


bValve


cCounter flow


dBubble cap


View Answer Bubble cap

Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is_______________?


aSame


bLess


cAbout 3 times


dAbout 0.33 times


View Answer About 3 times

Wind load consideration in the design of a support can be neglected, when the vessel is___________________?


aTall (say 30 metres), but is full of liquid


bTall but empty


cShort (< 2 m) and housed indoor


dNone of these



Factor of safety (i.e., overdesign factor) in heat transfer equipments is about _____________ percent more than the actual/theoretical design factor?


a5-10


b15-20


c30-35


d35-40


View Answer 15-20

The ratio of the largest load in a test to the original cross-sectional area of the test specimen is called the _____________ stress?


aYield point


bBreaking


cUltimate


dNone of these


View Answer Ultimate

Goto Page No.

Page 505 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