Mechanical Engineering MCQs

Page No. 27

Operation of McLeod gauge used for low pressure measurement is based on the principle of_________________?


agas law

✖


bBoyle’s law

✓


cCharle’s law

✖


dPascal’s law

✖


View Answer Boyle’s law

The rise or depression of liquid in a tube due to surface tensionwim increase in size of tube will________________?


aincrease

✖


bremain unaffected

✖


cmay increase or decrease depending on the characteristics of liquid

✖


ddecrease

✓


View Answer decrease

The units of dynamic or absolute viscosity are__________________?


ametres2 per sec

✖


bkg sec/meter

✖


cnewton-sec per meter

✓


dnewton-sec2 per meter

✖


View Answer newton-sec per meter

The property by virtue of which a liquid opposes relative motion between its different layers is called_________________?


asurface tension

✖


bco-efficient of viscosity

✖


cviscosity

✓


dosmosis

✖


View Answer viscosity

If the surface of liquid is convex, men ___________________?


acohesion pressure is negligible

✖


bcohesion pressure is decreased

✖


ccohesion pressure is increased

✓


dthere is no cohesion pressure

✖



The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately____________________?


a1 mm

✖


b5 mm

✖


c10 mm

✖


d30 mm

✓


View Answer 30 mm

The angle of contact in case of a liquid depends upon___________________?


athe nature of the liquid and the solid

✖


bthe material which exists above the free surface of the liquid

✖


cboth of die above

✓


dany one of the above

✖


View Answer both of die above

A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will_________________?


aincrease

✖


bdecrease

✖


cremain same

✓


dincrease/decrease depending on depth of immersion

✖


View Answer remain same

A pressure of 25 m of head of water is equal to_________________?


a25 kN/m2

✖


b245 kN/m2

✓


c2500 kN/m2

✖


d2.5kN/m2

✖


View Answer 245 kN/m2

A one dimensional flow is one which_________________?


ais uniform flow

✖


bis steady uniform flow

✖


ctakes place in straight lines

✖


dinvolves zero transverse component of flow

✓



Goto Page No.

Page 27 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