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 ? | MCQ Hive

Chemical Engineering Fluid Mechanics for Chemical

Q 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. < 0.3
B B. > 3
C C. 50
D D. 1

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