10+ Fluid Mechanics MCQ Questions and Online Test - McqProf



100+ Fluid Mechanics MCQ Questions and Online Test - McqProf: Fluid Mechanics MCQ Questions and Online Test : Looking for best MCQ Questions on Fluid Mechanics with answers to refresh your skill. McqProf is one stop destination for your Fluid Mechanics MCQ Preparation


Q1. According to Archimede's principle, if a body is immersed partially or fully in a fluid then the buoyancy force is _______ the weight of fluid displaced by the body.

  • equal to
  • less than
  • more than
  • unpredictable

Q2. A small shear force is applied on an element and then removed. If the element regains it’s original position, what kind of an element can it be?

  • Solid
  • Liquid
  • Fluid
  • Gaseous

Q3. In which type of matter, one won’t find a free surface?

  • Solid
  • Liquid
  • Gas
  • Fluid

Q4. The fluid will rise in capillary when the capillary is placed in fluid, if

  • the adhesion force between molecules of fluid and tube is less than the cohesion between liquid molecules
  • the adhesion force between molecules of fluid and tube is more than the cohesion between liquid molecules
  • the adhesion force between molecules of fluid and tube is equal to the cohesion between liquid molecules
  • None of the above

Q5. Which of the following pipe bends will incur the largest head loss ?

  • U-bend
  • 30° bend
  • 45° bend
  • 90° bend

Q6. Which of the following quantities has the dimensions [M0 L0 T 0]

  • Density
  • Stress
  • Strain
  • Strain Rate

Q7. The velocity components in x ,y and z directions of a velocity potential function is given by,

  • u=∂Φ/∂x, v=∂Φ/∂y,w=∂Φ/∂z
  • u=-∂Φ/∂x, v=∂Φ/∂y, w= -∂Φ/∂z
  • u=-∂Φ/∂x, v= -∂Φ/∂y,w= -∂Φ/∂z
  • u =∂Φ/∂x, v= -∂Φ/∂y,w=∂Φ/∂z

Q8. The rate of change of velocity due to change of position of fluid particles in a fluid flow is called as

  • normal acceleration
  • tangential acceleration
  • convective acceleration
  • local acceleration

Q9. A Newtonian fluid is defined as the fluid which

  • is highly viscous
  • is compressible and non-viscous
  • is incompressible and viscous
  • obeys Newton's law of viscosity

Q10. The coefficient of discharge for an external mouthpiece depends upon

  • velocity of liquid
  • pressure of liquid
  • area of mouthpiece
  • length of mouthpiece

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