Mechanical Engineering MCQs

Page No. 45

An important property of high silicon (12 – 18%) cast iron is the high__________________?


atenacity

✖


bbrittleness

✖


cplasticity

✖


dhardness

✓


View Answer hardness

White cast iron contains carbon in the form of__________________?


afree carbon

✖


bgraphite

✖


ccementite

✓


dwhite carbon

✖


View Answer cementite

Chilled cast iron has____________________?


ano graphite

✓


ba very high percentage of graphite

✖


ca low percentage of graphite

✖


dgraphite as its basic constituent of composition

✖


View Answer no graphite

Iron is ____________________?


aparamagnetic

✖


bferromagnetic

✓


cferroelectric

✖


ddielectric

✖


View Answer ferromagnetic

Sulphur in pig iron tends to make it___________________?


ahard

✓


bsoft

✖


cductile

✖


dtough

✖


View Answer hard

The following types of materials are usually the most ductile__________________?


aface-centred cubic lattice

✓


bbody-centred cubic lattice

✖


chexagonal close-packed lattice

✖


dall of the above

✖



In malleable iron, carbon is present in the form of___________________?


acementite

✖


bfree carbon

✖


cflakes

✖


dnodular aggregates of graphite

✓



In grey cast iron, carbon is present in the form of____________________?


acementite

✖


bfree carbon

✖


cflakes

✓


dspheroids

✖


View Answer flakes

The unique property of cast iron is its high ___________________?


amalleability

✖


bductility

✖


csurface finish

✖


ddamping characteristics

✓



The percentage of carbon in grey iron castings usually varies between __________________?


a0.5 to 1%

✖


b1 – 2%

✖


c2.5 to 4.5%

✓


d5 – 7%

✖


View Answer 2.5 to 4.5%

Goto Page No.

Page 45 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