Mechanical Engineering MCQs

Page No. 17

Water tube boilers are those in which________________?


aflue gases pass through tubes and water around it


bwater passes through the tubes and flue gases around it


cwork is done during adiabatic expansion


dchange in enthalpy



Steam engine operates on_________________?


acarnot cycle


bjoule cycle


cStirling cycle


dbrayton cycle


View Answer brayton cycle

The lenght of Cornish boiler is of the order of _________________?


a2-4 m


b3-5 m


c5-7.5 m


d7-9 m


View Answer 5-7.5 m

For burning 1 kg of carbon to CO as per chemically correct combusiton, amount of air required is___________________?


a1 kg


b4/3kg


c8/3kg


d2 kg


View Answer 4/3kg

Which of the following gases has the highest calorific value ________________?


aproducer gas


bcoal gas


cwater gas


dblast furnace gas


View Answer coal gas

Efficiency of a thermal cycle increases by ________________?


aregeneration


breheating of steam


cboth A. and B.


dcooling of steam


View Answer both A. and B.

Efficiency of rankine cycle can be increased by_________________?


adecreasing initial steam pressure and temperature


bincreasing exhaust pressure


cdecreasing exhaust pressure


dincreasing the expansion ratio



Alkaline pyrogallate is used in Orsat’s apparatus for absorption of _________________?


aC02


bCO


c02


dN2


View Answer 02

Hygrometery deals with the_________________?


aHygroscopic substances


bwater vapour in air


ctemperature of air


dpressure of air


View Answer water vapour in air

The increase in pressure _________________?


alowers the boiling point of a liquid


braises the boiling point of a liquid


cdoes not affect the boiling point of a liquid


dreduces its volume



Goto Page No.

Page 17 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