Fluid Mechanics MCQs
With the boundary layer separation, the displacement thickness is
A) Increases
B) Decreases
C) Remains Same
D) Independent
Check Answer
A) Increases
The laminar flow convert into the turbulent flow by which method.
A) Dead Weight Gauge
B) Vacuum Gauge
C) Turbulator
D) Ionization of Gauge
Check Answer
C) Turbulator
The separation of flow occurs if the fluid is traveling away from the
A) Surface of body
B) Fluid of body
C) Adverse pressure gradient
D) Inter-molecular space
Check Answer
C) Adverse pressure gradient
The flow is laminar or turbulent is decided by which of the following number.
A) Reynold’s number
B) Mach number
C) Froude number
D) Knudsen number
Check Answer
A) Reynold’s number
The Body floating in the liquid it said to be neutral if it’s metacentre is
A) Coincide with the centre of gravity
B) Above the centre of gravity
C) Below the centre of gravity
D) Nice between centre of buoyancy and centre of gravity
Check Answer
A) Coincide with the centre of gravity
The centre of gravity of the volume of a liquid is displaced is called as
A) Centre of pressure
B) Centre of buoyancy
C) Metacentre
D) None of the above
Check Answer
B) Centre of buoyancy
The stability of a dam is checked for
A) Tension at the base
B) Sliding of the dam
C) Overturning of the dam
D) All of the above
Check Answer
D) All of the above
The ratio of mass upon volume is called as
A) Specific gravity
B) Mass density
C) Specific weight
D) None of the above
Check Answer
B) Mass density
The reciprocal of mass density is called as
A) Specific weight
B) Volume
C) Specific volume
D) None of the above
Check Answer
C) Specific volume
The specific weigh of sea water is _______ than that of pure water.
A) Same as
B) Less than
C) More than
D) Cant say
Check Answer
C) More than
