Chemical Engineering MCQs

Page No. 483

If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will _____________ times?


aIncrease by 1.8

✖


bDecrease by 22

✖


cIncrease by 21.6

✓


dNone of these

✖


View Answer Increase by 21.6

For storing hazardous chemicals in large storage tanks, the minimum safe distance between the two tanks should range between ______________________ times the tank diameter?


a1 to 1.5

✓


b2.5 to 3.5

✖


c4 to 5

✖


d6 to 8

✖


View Answer 1 to 1.5

Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation ?


aSorel-Lewis method

✓


bMcCabe-Thiele’s method

✖


cPonchon-Savarit method

✖


dNone of these

✖


View Answer Sorel-Lewis method

Fouling factor must be included in the calculation of overall design heat transfer coefficient, when the liquid__________________?


aContaining suspended solids flows at low velocity

✓


bContaining suspended solids flows at high velocity

✖


cIs highly viscous

✖


dIs of high specific gravity

✖



Overall tray efficiency of a distillation column is the ratio of the number of ___________________?


aOverall gas transfer units to the number of ideal trays required

✖


bIdeal trays required to the number of real trays required

✓


cReal trays required to the number of ideal trays required

✖


dNone of these

✖



An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by______________?


aAn increase in liquid viscosity

✖


bAn increase in relative volatility for rectification columns

✖


cDecrease in gas solubility for absorbers

✖


dAll A., B. and C.

✓


View Answer All A., B. and C.

Vertical condenser is advantageous to the horizontal condenser from operation point of view, when________________?


aHydrostatic head is required for refluxing the condensate

✖


bOnly the function of condensation is to be carried out

✖


cSub-cooling of condensate is desired

✖


dBoth the functions of condensation & sub cooling are carried out in a single unit

✓



The circumferential (hoop) stress in a thin walled cylindrical vessel under internal pressure is______________________?


apd/2t

✓


bpd/4t

✖


cpd/t

✖


dpd/3t

✖


View Answer pd/2t

Pick out the correct statement___________________?


aCentre to centre distance between two consecutives rivets in a row is called the pitch

✓


bA riveted joint made in overlapping plates is called butt joint

✖


cHole size drilled in riveted plates is less than the actual size of the rivet

✖


dNone of these

✖



n the agitators, the power required will be changed with the increase of diameter of agitator D. as ____________________?


aD2

✖


bD5

✓


cD

✖


dD9

✖


View Answer D5

Goto Page No.

Page 483 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