Chemical Engineering MCQs

Page No. 439

Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid ?


aBleed point

✖


bVent

✖


cCatchall

✓


dBaffle

✖


View Answer Catchall

The equivalent diameter for pressure drop is ________________ that for heat transfer?


aSmaller than

✓


bGreater than

✖


cEqual to

✖


dNot related with

✖


View Answer Smaller than

As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient ?


aContinues to increase

✖


bContinues to decrease

✖


cGoes through a minimum

✓


dGoes through a maximum

✖



Fouling factor_____________________?


aIs a dimensionless quantity

✖


bDoes not provide a safety factor for design

✖


cAccounts for additional resistances to heat flow

✓


dNone of these

✖



If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid_________________?


aRemains unchanged

✖


bIncreases

✖


cIncreases or decreases depending on number of shell passes

✖


dDecreases

✓


View Answer Decreases

The unit of heat transfer co-efficient in SI unit is____________________?


aJ/M2°K

✖


bW/m2°K

✓


cW/m°K

✖


dJ/m°K

✖


View Answer W/m2°K

Which type of heat exchanger is preferred for heavy heat loads ?


aDouble pipe

✖


bPlate fine

✖


cSeries and parallel set of shell and tube

✓


dNone of these

✖



With increase in porosity, the thermal conductivity of a solid substance__________________?


aIncreases

✖


bDecreases

✓


cRemains unchanged

✖


dMay increase or decrease; depends on the solid

✖


View Answer Decreases

Vacuum is generally maintained in the vapour space of an evaporator mainly to__________________?


aGet economical temperature difference by using moderate pressure steam

✓


bFacilitate forward feeding in multiple effect evaporation

✖


cConcentrate heat sensitive materials

✖


dAchieve very high concentration of the final product

✖



The number of kg vaporised per kg of steam fed to the evaporator is defined as____________?


aCapacity

✖


bRate of evaporation

✖


cEconomy

✓


dRate of vaporisation

✖


View Answer Economy

Goto Page No.

Page 439 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