Mechanical Engineering Questions And Answers :: Compressors: part5



Mechanical Engineering : Compressors QUESTIONS AND ANSWERS :: part5 : 16 to 20

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

16.If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches

isothermal
isentropic
adiabatic
isochoric
isobaric.

17.It is not possible to use closed gas turbine cycle in aeronautical engines because

it is inefficient
it is bulky
it requires cooling water for its operation
c
opt 5

18.Pick up the correct statement

gas turbine uses low air-fuel ratio to economies on fuel
gas turbine uses high air-fuel ratio to reduce outgoing temperature
gas turbine uses low air-fuel ratio to develop the high thrust required
all of the above
none of the above.

19.Producer gas is produced by

carbonation of coal
passing steam over incandescent coke
passing air and a large amount of steam over waste coal at about 65�C
partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
same way as the natural gas.

20.In the axial flow gas turbine, the work ratio is the ratio of

compressor work and turbine work
output and input
actual total head temperature drop to the entropic total head drop from total head inlet to static head outlet
actual compressor work and theoretical compressor work
none of the above.

More Compressors QUESTIONS AND ANSWERS available in next pages

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