Mechanical Engineering MCQs

Page No. 180

The ratio of specific weighf/h.p. of gas turbin and I.C engines may be typically of the order of_______________________?


a1 : 1


b2 : 1


c4 : 1


d1 : 6


View Answer 1 : 6

The thermal efficiency of a gas turbine as compared to a diesel plant is__________________?


asame


bmore


cless


ddepends on other factors


View Answer less

Gas turbine blades are given a rake___________________?


aequal to zero


bin the direction of motion of blades


copposite to the direction of motion of blades


ddepending on the velocity



The air-fuel ratio in gas turbines is of the order of ______________________?


a7 : 1


b15 : 1


c30 : 1


d50: 1


View Answer 50: 1

Mechanical efficiency of gas turbines as compared to I.C engines is____________________?


ahigher


blower


csame


ddepends on on odier considerations


View Answer higher

The fuel consumption in gas turbines is accounted for by___________________?


alower heating value


bhigher heating value


cheating value


dhigher calorific value


View Answer lower heating value

The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is_______________?


alow


bhigh


csame


dlow/high depending on make and type


View Answer low

The work ratio of a gas turbine plant is defined as the ratio of__________________?


anet work output and heat supplied (6) net work output and work done by tur¬bine


bactual heat drop and isentropic heat drop


cnet work output and isentropic heat drop


disentropic increase/drop in tempera¬ture and actual increase/ drop in temperature



Rotary compressors are suitable for ____________________?


alarge discharge at high pressure


blow discharge at high pressure


clarge discharge at low pressure


dlow discharge at low pressure



Gas turbine works on______________?


aBrayton or Atkinson cycle


bCarnot cycle


cRankine cycle


dErricsson cycle



Goto Page No.

Page 180 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