Mechanical Engineering MCQs

Page No. 2

Which is not correct statement about the function of furnace____________________?


ato provide proper conditions for con-tinuous complete combustion


bmix fuel with air and ignite


cseparate ash from coal


dmaintain heat supply to prepare and ignite the incoming fuel



Which is not correct statement about pulverised fuel firing ?


ahigh burning rate is possible


bheat release can be easily controlled


cfuel burns economically


dit is the best technique for burning high ash content fuel having low fusion ash



Pick up wrong statement about desired properties of a good fuel__________________?


ahigh calorific valu


bproduce minimum smoke and gases


cease in storing


dhigh ignition point


View Answer high ignition point

Thermal efficiency of a thermal power plant is of the order of___________________?


a15%


b20%


c30%


d45%


View Answer 30%

The radius of a dished head is taken approximately as______________________?


aone-fourth


bhalf


cone


dtwo


View Answer one

The overall efficiency of thermal power plant is________________?


aboiler efficiency, turhine efficiecny, generator efficiency


ball the three above plus gas cycle efficiency


ccarnot cycle efficiency


dregenerative cycle efficiency



In forced circulation type boiler__________________?


aheating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum


bwater is supplied in drum and through down-comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixture of water and steam


cfeed pump is employed to supplement natural circulation in water wall type furnace


dwater is converted into steam in one pass without any recirculation



The heat loss in a boiler takes place in the form of________________?


aheat carried away by flue gases


bheat carried away by ash


cmoisture present in fuel and steam formed by combustion of hydrogen in fuel


dall of the above


View Answer all of the above

In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine__________________?


alancashire boiler


blocomotive boiler


cbabcock and wilcox boiler


dcochran boiler


View Answer locomotive boiler

With increase in load, convection superheater has_______________________?


adrooping characteristic


blinear characterisstic


crising characteristic


dflat characteristic


View Answer rising characteristic

Goto Page No.

Page 2 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