Chemical Engineering MCQs

Page No. 248

A centrifugal pump has the following specifications: Power = 4 H.P.; Speed = 800 rpm Head = 8 metres Flow = 1000 litres/minutes. If its speed is halved, the new discharge will be __________ litres/minute ?


a500

✓


b200

✖


c1000

✖


d750

✖


View Answer 500

Which of the following is most prone to pulsating discharge flow ?


aCentrifugal pump

✖


bReciprocating pump

✖


cGear pump

✓


dAxial flow pump

✖


View Answer Gear pump

I.D. of 1/4″ schedule 40 pipe is 0.364″. I.D. of a 1/2″ schedule 40 pipe would be ______________ inch?


a4.728

✖


b0.5

✖


c0.622

✓


d0.474

✖


View Answer 0.622

Slurries can be most conveniently pumped by a _______________ pump?


aScrew

✖


bReciprocating

✖


cGear

✖


dCentrifugal

✓


View Answer Centrifugal

Poise is converted into stoke by ___________________?


aMultiplying with density (gm/c.c)

✖


bDividing by density (gm/c.c)

✓


cMultiplying with specific gravity

✖


dDividing by specific gravity

✖



A tube is specified by its____________________?


aThickness only

✖


bOuter diameter only

✖


cThickness & outer diameter both

✓


dInner diameter

✖



In parallel pipe problems, the__________________?


aHead loss is the same through each pipe

✓


bDischarge is the same through all the pipes

✖


cTotal head loss is equal to the sum of the head losses through each pipe

✖


dNone of these

✖



In Newton’s law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is___________________?


a0.44

✓


b0.044

✖


c4.4

✖


d44

✖


View Answer 0.44

For turbulent flow of Newtonian fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is ________________?


a0.5

✖


b1

✓


c0.66

✖


d< 0.5

✖


View Answer 1

What is the shear rate at the pipe wall, in case of laminar flow of Newtonian fluids in a pipe of diameter ‘D’ & length ‘L’ incurring a pressure drop ‘Δp’ with average velocity ‘Vavg’ ?


aD Δp/8L

✖


bD Δp/4L

✖


c8 Vavg/D

✓


d4 Vavg/D

✖


View Answer 8 Vavg/D

Goto Page No.

Page 248 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