Momentum
Mass
Energy
Both B & C
✅ The correct answer is option B.
Fluid Mechanics MCQs
In turbulent flow, the
Fluid particles move in an orderly manner
Momentum transfer is on molecular scale only
Shear stress is caused more effectively by cohesion than momentum transfer
Shear stresses are generally larger than in a similar laminar flow
✅ The correct answer is option D.
Stoke’s law is valid, when the particle Reynolds number is
< 1
> 1
< 5
None of these
✅ The correct answer is option A.
Which of the following has the minimum compressibility?
Water at room temperature
Air at room temperature
Oxygen at room temperature
Nitrogen at room temperature
✅ The correct answer is option A.
The capacity of an accumulator is the maximum
Energy which it can store
Discharge which it can deliver
Liquid which it can store
None of these
✅ The correct answer is option A.
If Blausius or Darcey friction factor is ‘f₁’ then the Fanning friction factor is equal to
f₁/4
4F₂
2f₁
f₁/2
✅ The correct answer is option A.
If the head over the triangular notch is doubled, the discharge will increase by __________ times.
2
2.828
5.657
4
✅ The correct answer is option C.
Each term in Bernaulli’s equation represents the __________ of the fluid.
Energy per unit mass
Energy per unit weight
Force per unit mass
None of these
✅ The correct answer is option B.
Drag is defined as the force exerted by the
Fluid on the solid in a direction opposite to flow
Fluid on the solid in the direction of flow
Solid on the fluid
None of these
✅ The correct answer is option B.
A fluid is the one, which
Cannot remain at rest under the action of shear force
Continuously expands till it fills any container
Is incompressible
Permanently resists distortion
✅ The correct answer is option A.