Fluid Mechanics MCQs
The pressure of non-moving fluid at given points is called as the
A) Gauge Pressure
B) Atmospheric Pressure
C) Differential Pressure
D) Hydrostatic Pressure
Check Answer
D) Hydrostatic Pressure
Compressibility is a reciprocal of
A) Mass density
B) Viscosity
C) Bulk modulus
D) Relative density
Check Answer
C) Bulk modulus
The bulk modulus is defined as
A) Direct stress to strain
B) Direct stress to volumetric strain
C) Both a and b
D) None of the above
Check Answer
B) Direct stress to volumetric strain
The property which offers resistance to the motion of one layer of fluid over other layers is called as
A) Velocity
B) Viscosity
C) Relative velocity
D) None of the above
Check Answer
B) Viscosity
The flow is called sub-sonic if the Mach number is
A) Unity
B) Less than unity
C) 1 to 6
D) More than 6
Check Answer
B) Less than unity
The working principle of Jet propulsion on which of the following in law.
A) Newton’s 1st law
B) Newton’s 2nd law
C) Newton’s 3rd law
D) Thermodynamic properties
Check Answer
C) Newton’s 3rd law
The Principle of fluid mechanics working on the utilizations of the
A) Mass
B) Volume
C) Work
D) Velocity
Check Answer
C) Work
For laminar sub layer the velocity profile will be
A) Linear
B) Parabolic
C) Logarithmic
D) None of the above
Check Answer
A) Linear
Which of the following is method to prevent flow separation.
A) Use of rough boundaries
B) By creating suction of the moving fluid
C) Bhai use of smaller divergence angle
D) All of the above
Check Answer
D) All of the above
The steady state flow must satisfy the which of the following law
A) Kirchhoff’s law
B) Newtons law
C) Rutherford experiment law
D) Kepler law
Check Answer
A) Kirchhoff’s law
