Fluid Mechanics MCQs
Shear stress in turbulent flow is
A) Laminar shear stress – turbulent shear stress
B) Laminar shear stress × turbulent shear stress
C) Laminar shear stress + turbulent shear stress
D) Laminar shear stress ÷ turbulent shear stress
Check Answer
C) Laminar shear stress + turbulent shear stress
Inertia force to the surface tension force is called as
A) Reynold’s number
B) Euler’s number
C) Weber’s number
D) None of the above
Check Answer
C) Weber’s number
The ratio of inertia force to the viscous force is called as
A) Reynold’s number
B) Euler’s number
C) Weber’s number
D) None of the above
Check Answer
A) Reynold’s number
Which of the following is a dimensionless equation are used in dimensional analysis.
A) Reynold’s equation
B) Euler’s equation
C) Weber’s equation
D) All of the above
Check Answer
D) All of the above
The ratio of inertia force to elastic force in square root is called as
A) Mach’s Number
B) Cauchy’s Number
C) Both (A) and (B)
D) None of the above
Check Answer
C) Both (A) and (B)
The dimensionless quantity of the following is
A) Mass
B) Weight
C) Specific weight
D) Reynold’s number
Check Answer
D) Reynold’s number
Which of the following is a primary quantity.
A) Mass
B) Density
C) Speed
D) Volume
Check Answer
A) Mass
The path followed by single particle the line traced, this line is called as
A) Streamline
B) Path line
C) Streak line
D) Potential line
Check Answer
B) Path line
The group of particle flowing through particular location and the line traced by that particles is called as
A) Streamline
B) Path line
C) Streak line
D) Potential line
Check Answer
C) Streak line
Which of the following a assumption is true about the continuity equation.
A) Flow it steady
B) Flow is incompressible
C) University is uniform over a cross section.
D) All of the above
Check Answer
D) All of the above
