Fluid Mechanics MCQs
The ratio of mass density of fluid to the mass density of standard fluid is called as
A) Specific gravity
B) Relative density
C) Both of the above
D) None of the above
Check Answer
C) Both of the above
A continuous and homogenous medium is called as
A) Idealization
B) Continuum
C) Homogenous
D) None of the above
Check Answer
B) Continuum
If the value of the velocity of flow increases the Reynolds number will be
A) Double
B) Half
C) Increase
D) Decrease
Check Answer
C) Increase
The Reynolds number is a function of
A) Velocity
B) Discharge
C) Fluid property
D) All of the above
Check Answer
D) All of the above
The minimum value of friction factor that can occur in laminar flow when flowing in a circular pipe is
A) 0.024
B) 0.025
C) 0.032
D) 0.023
Check Answer
C) 0.032
The skin friction acting on the component of the
A) Profile drag
B) Surface blade
C) Vane angles
D) Parallel movement
Check Answer
A) Profile drag
The large Cross sectional bodies having
A) lower drag
B) Higher drag
C) Minimum drag
D) Maximum drag
Check Answer
B) Higher drag
Blood is example of
A) Newtonian fluid
B) Non Newtonian fluid
C) Dilatants fluid
D) Pseudo plastic fluid
Check Answer
D) Pseudo plastic fluid
The coefficient of drag is directly proportional to
A) Drag force
B) Mass density
C) Area
D) Flow speed
Check Answer
A) Drag force
The gauge pressure may be
A) Positive
B) Negative
C) Positive or negative
D) None of the above
Check Answer
C) Positive or negative
