Capacity varies directly with
Head varies as the square of
Horsepower varies as the cube of
All of the above
✅ The correct answer is option D.
Fluid Mechanics MCQs
Quicksand is an example of a __________ fluid.
Bingham plastic
Dilatent
Newtonion
Pseudoplastic
✅ The correct answer is option B.
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.
Piston
Gear
Positive displacement
Sump
✅ The correct answer is option B.
A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke’s law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity
Same as that of A
One fourth as that of A
Twice as that of A
Four times as that of A
✅ The correct answer is option B.
At low Reynolds number
Viscous forces are unimportant
Viscous forces control
Viscous forces control and inertial forces are unimportant
Gravity forces control
✅ The correct answer is option C.
__________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm².
Centrifugal
Piston
Plunger
Vane
✅ The correct answer is option C.