Mechanical Engineering MCQs

Page No. 40

Cast iron has_________________?


ahigh tensile strength


bits elastic limit close to the ultimate breaking strength


chigh ductility


dall of the above



In mottled cast iron, carbon is available in__________________?


afree form


bcombined form


cnodular form


dpartly in free and partly in combined state



An important property of malleable cast iron in comparison to grey cast iron is the high___________________?


acompressive strength


bductility


ccarbon content


dhardness


View Answer ductility

Carbon steel is_______________?


amade by adding carbon in steel


brefined from cast iron


can alloy of iron and carbon with varying quantities of phosphorus and sulphur


dextensively used for making cutting tools



‘Killed steels’ are those steels__________________?


awhich are destroyed by burning


bwhich after their destruction are recycled to produce fresh steel


cwhich are deoxidised in the ladle with silicon and aluminium


din which carbon is completely burnt



The most effective inhibitor of grain growth, when added in small quantities is__________________?


acarbon


bvanadium


cmanganese


dcobalt


View Answer vanadium

Maximum percentage of carbon in ferrite is___________________?


a0.025%


b0.06%


c0.1%


d0.25%


View Answer 0.025%

Corrosion resistance of steel is increased by addition of________________?


achromium and nickel


bsulphur, phosphorus, lead


cvanadium, aluminium


dtungsten, molybdenum, vanadium, chromium


View Answer chromium and nickel

Railway rails are normally made of_______________?


amild steel


balloy steel


chigh carbon


dtungsten steel


View Answer high carbon

Pick up the wrong statement Nickel and chromium in steel help in _________________?


aproviding corrosion resistance


bimproving machining properties


cproviding high strength at elevated temperatures


draising the elastic limit



Goto Page No.

Page 40 of 190

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