1000+ Mechanical Engineering Turbomachines Quiz Questions and Answers - 1
Question: 1
For efficient operation of axial flow compressors and blades are made
(A) aerofoil section
(B) forward curved
(C) slightly curved
(D) straight
Ans: A
aerofoil section
Question: 2
An axial flow compressor has
(A) identical blades at exit as well as entry
(B) smaller blades at gas entry and larger blades at exit
(C) larger blades at gas entry and smaller blades at exit
(D) size of blades remains same only angles changes
Ans: C
larger blades at gas entry and smaller blades at exit
Question: 3
Efficiency of gas turbine is increased by
(A) adding a regenerator
(B) intercooling
(C) reheating
(D) all of the above
Ans: D
all of the above
Question: 4
The ratio of actual velocity to the local velocity of sound is called
(A) mach number
(B) speed ratio
(C) velocity factor
(D) velocity ratio
Ans: A
mach number
Question: 5
Which of the following are positive displacement rotary compressor?
(A) axial flow compressor
(B) centrifugal compressor
(C) roots blower
(D) all of the above
Ans: C
roots blower
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