Mechanical Engineering MCQs

Page No. 186

In multistage compressor, the isothermal compression is achieved by_________________?


aemploying intercooler


bby constantly cooling the cylinder


cby running compressor at very slow speed


dby insulating the cylinder



The capacity of compressor will be highest when its intake temperature is___________________?


alowest


bhighest


canything.


datmospheric


View Answer atmospheric

Reciprocating air compressor is best suited for___________________?


alarge quantity of air at high pressure


bsmall quantity of air at high pressure


csmall quantity of air at low pressure


dlarge quantity of air at low pressure



After-cooler is used to__________________?


acool the air


bdecrease the delivery temperature for ease in handling


ccause moisture and oil vapour to drop out


dreduce volume



Rotary compressor is best suited for_____________________?


alarge quantity of air at high pressure


bsmall quantity of air at high pressure


csmall quantity of air at low pressure


dlarge quantity of air at low pressure



Which is false statement about air receivers ___________________?


aThese are used to dampen pulsations ,


bThese act as reservoir to- take care of sudden demands


cThese increase compressor efficiency


dThese knock out some oil and moisture



The clearance volume of the air compressor is kept minimum because____________________?


ait allows maximum compression to be achieved


bit greatly affects volumetric efficiency


cit results in minimum work


dit permits isothermal compression



Ratio of indicated h.p. to shaft h.p. in known as__________________?


acompressor efficiency


bisothermal efficiency


cvolumetric efficiency


dmechanical efficiency


View Answer mechanical efficiency

Euler’s equation is applicable for__________________?


acentrifugal compressor


baxial compressor


cpumps


dall of the above


View Answer all of the above

Which is false statement about multistage compression ?


aPower consumption per unit of air delivered is low


bVolumetric efficiency is high


cIt is best suited for compression ratios around 7:1


dThe moisture in air is condensed in the intercooler



Goto Page No.

Page 186 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