Newtonion
Dilatant
Pseudoplastic
Non-Newtonion
✅ The correct answer is option A.
Fluid Mechanics MCQs
Minimum porosity for fluidisation is
That corresponding to static bed
That corresponding to completely fluidised bed
The porosity of the bed when true fluidisation begins
Less than that of the’ static bed
✅ The correct answer is option C.
Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation?
Decrease in effect
Increase in thrust
Develops noise
Develops high pressure
✅ The correct answer is option D.
The rate of change of moment of momentum represents the __________ by the fluid.
Torque applied
Force exerted
Work done
Power developed
✅ The correct answer is option A.
For laminar flow of a shear thinning liquid in a pipe, if the volumetric flow rate is doubled, the pressure gradient will increase by a factor of
2
<2
>2
1-Feb
✅ The correct answer is option A.
Ratio of pressure and inertia force gives __________ number.
Weber
Mach
Euler
Froude
✅ The correct answer is option C.
Fluid flow at increasing rate through a diverging pipe is an example of __________ flow.
Steady uniform
Non-steady uniform
Steady non-uniform
Non-steady non-uniform
✅ The correct answer is option D.
Velocity head on sudden enlargement in a horizontal pipe is converted into __________ head.
Elevation
Pressure
Both A and B
Neither A nor B
✅ The correct answer is option B.
The losses in open channel flow generally vary as the
Inverse of the roughness
First power of the roughness
Square of the velocity
Inverse square of hydraulic radius
✅ The correct answer is option B.
For a reciprocating pump, the indicator diagram is the graph between the
Discharge and overall efficiency
Volume swept by piston for one complete revolution and the pressure in the cylinder
Angle swept by the crank pin at any instant and the discharge
None of these
✅ The correct answer is option B.