Mechanical Engineering MCQs

Page No. 90

Three different weights fall from a certain height under vacuum. They will take______________?


asame time to reach earth


btimes proportional to weight to reach earth


ctimes inversely proportional to weight to reach earth


dunpredictable



In oilness bearings________________?


athe oil film pressure is generated only by the rotation of the journal


bthe oil film is maintained by supplying oil under pressure


cdo not require external supply of lubricant


dgrease required to be applied after some intervals



Oil in journal bearing should be applied at the point where load is________________?


anil or lightest


bmaximum


caverage


dany one of the above


View Answer nil or lightest

The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is___________________?


a0.01 micron


b0.1 micron


c1 micron


d10 microns


View Answer 1 micron

Antifriction bearings are__________________?


asleeve bearings


bhydrodynamic bearings


cthin lubricated bearings


dnone of the above


View Answer none of the above

If two springs are in parallel then their overall stiffness will be_______________?


ahalf


bsame


cdouble


dunpredictable


View Answer double

Belt slip may occur due to________________?


aheavy load


bloose belt


cdriving pulley too small


dall of the above


View Answer all of the above

When a close coiled helical spring is compressed, its wire is subjected to________________?


atension


bshear


ccompression


dall of the above


View Answer tension

Spring stiffness is__________________?


aratio of coil diameter to wire diameter


bload required to produce unit deflection


cits capability of storing energy


dits ability to absorb shocks



The shearing stresses in the inner face as compared to outer face of the wire in a heavy close coiled spring is_________________?


alarger


bsmaller


cequal


dlarger/smaller depending on diameter of spring coil


View Answer larger

Goto Page No.

Page 90 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