Mechanical Engineering MCQs

Page No. 1

The chemical used in breather is_______________?


aasbestos fiber


b silica sand


c sodium chloride


d silica gel


View Answer silica gel

Who first introduced solid media_______________?


aLouis pasteur


bRobert koch


cHensen


dOgston


View Answer Robert koch

Atmospheric pressure is equal to____________?


a1.013 bar


b760mm of Hg


c101.3KN/m2


dAll of these


View Answer All of these

What is the most common valve used in piping systems to throttle or regulate flow ?


aGlobe valve


bGate valve


cButterfly valve


dPlug valve


View Answer Globe valve

Ball valves are commonly used to_________?


athrottle flow


bcheck flow


cchange flow direction


dstart/stop flow


View Answer start/stop flow

Which tool is used to measure gap size in a rough alignment?


aInside caliper


bDial indicator


cFeeler gage


dMeasuring tape


View Answer Inside caliper

The part of the coupling that actually transmits power and rotation from one shaft to the other shaft is_________?


agap


bhub


ckey


ddriver


View Answer hub

The stress developed in a material at breaking point in extension is called__________?


aBreaking stress


bFracture stress


cYield point stress


dProof stress


View Answer Breaking stress

Which is not correct statement about effect of sulphur in fuel ___________________?


ait has heating value


bit helps in electrostatic precipitation of ash in flue-gases


cit leads to corrosion of air heaters, ducting, etc. if flue gas exit temperature is low


dit erodes furnace walls



Which is not the correct statement about moisture in coal ______________________?


ainherent moisture and surface mois¬ture are different things


bin some coals moisture may be present upto 40%


csome moisture in coal helps in better burning which is not possible with completely dry coal


dit increases thermal efficiency



Goto Page No.

Page 1 of 190

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.




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