Chemical Engineering MCQs

Page No. 825

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?


aTime


bSquare root of time


cSquare of time


dCube of time


View Answer Square root of time

Uniform ramming of sand in green sand moulding process leads to____________________?


aReduced chance of gas porosity


bGreater dimensional stability of the casting


cUniform flow of molten metal into the mould cavity


dLess sand expansion type of casting defect



____________________ flux is used for the extraction of metal from its self fluxing ores?


aNo


bAcid


cBasic


dNeutral


View Answer No

Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about___________________?


a1


b10


c25


d25


View Answer 10

Property responsible for the talcum powder to cling to the skin is the__________________?


aCapillary action


bAdhesion


cCohesion


dSurface tension


View Answer Adhesion

Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________?


aOnly


bPlus variable cost


cPlus overhead cost


dPlus selling expenses


View Answer Plus variable cost

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are ?


aCobalt, chromium & tungsten


bCobalt, chromium & nickel


cMolybdenum, tungsten & chromium


dCobalt, zirconium & molybdenum



Which of the, following is not associated with the functioning of a petrol engine ?


aCompression ignition system


bSpark plug


cCarburettor


dOtto cycle



Heating of ferromagnetic materials to a temperature above Curie temperature makes it ________________________?


aInsulator for heat & electricity transmission


bFerritic


cBehave like paramagnetic materials


dSuperconductor



Oxygen cylinders used for autogenous (cutting/welding) purposes are ___________________?


aSeamless & made of steel


bHeat treated before use


cMade by sand casting


dWelded steel cylinders



Goto Page No.

Page 825 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