Related Questions

The Mach number for hypersonic flow of compressible fluid is
A 1
B > 1
C > 4
Mach number is defined as the ratio of the local flow velocity to the sonic velocity in the fluid. For what value of Mach number, the gases are considered incompressible?
A [

A.

B. > 3

B 50
C 1
When the Mach number is between --------the flow is called supe-sonic flow.
A 1 and 6
B 4 and 6
C 2.5 and 4
D 1 and 2.5
When the Mach number is between __________ the flow is called super-sonic flow.
A 1 and 2.5
B 2.5 and 4
C 4 and 6
D 1 and 6
When the Mach number is less than unity, the flow is called
A Sub-sonic flow
B Sonic flow
C Super-sonic flow
D Hyper-sonic flow
A flow is called hyper-sonic, if the Mach number is
A Less than unity
B Unity
C Between 1 and 6
D None of these
A flow is called sub-sonic, if the Mach number is
A Less than unity
B Unity
C Between 1 and 6
D More than 6
In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs at
A Diffuser inlet radius
B Diffuser outlet radius
C Impeller inlet radius
D Impeller outlet radius
Mach number is important in a fluid flow problem, when the inertia and __________ forces predominate.
A Elastic
B Viscous
C Gravity
D None of these
In case of supersonic flow of a fluid through pipeline, the 'Mach number' is
A 0
B 1
C > 1

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