Quiz  /  Computational fluid dynamics Class 11 MCQ Questions With Answers

  • 1. 
    Blood has density equal to that of:

  • Mercury
  • Honey
  • water
  • glycerin

  • 2. 
    As the water falls from tap, its speed increases and cross sectional area:

  • Decreases
  • Increases
  • become zero
  • becomes Constant

  • 3. 
    The equation 𝐹 = 6πœ‹πœ‚π‘Ÿπ‘£ is called:

  • Newton’s law
  • Stoke’s law
  • Ohm’s law
  • Lenz’s law

  • 4. 
    An object moving through a fluid experience a retarding force called:

  • Drag force
  • Gravitational force
  • Terminating force
  • Frictional force

  • 5. 
    Speed of efflux can be determined by applying:

  • Bernoulli's Equation
  • Continuity Equation
  • Torricelli's Theorem
  • Newton's law of motion

  • 6. 
    If cross-sectional area of pipe decreases, the speed of fluid must increase according to:

  • Continuity equation
  • Bernoulli's equation
  • Torricelli's theorem
  • Venture relation

  • 7. 
    One Torr is expressed in π‘π‘šβˆ’2 as:

  • 133.3 π‘π‘šβˆ’2
  • 13.33 π‘π‘šβˆ’2
  • 1.333 π‘π‘šβˆ’2
  • 1333 π‘π‘šβˆ’2

  • 8. 
    When weight of an object falling freely becomes equal to the drag force, then the body will move with:

  • Increasing speed
  • Decreasing speed
  • Constant speed
  • Constant acceleration

  • 9. 
    The maximum constant velocity of an object falling vertically downward is called:

  • Final velocity
  • Terminal velocity
  • Instantaneous velocity
  • Average velocity

  • 10. 
    A man standing near a fast moving train may fall.

  • Away from the train
  • Towards the train
  • On the same place
  • In the direction of train

  • 11. 
    The dimensions of coefficient of viscosity is:

  • ML1T-2
  • M2L1T1
  • ML-1T-1
  • ML-1T-2

  • 12. 
    When the body reaches its terminal velocity, the acceleration of the body becomes

  • Zero
  • Minimum
  • Maximum
  • Half of the initial

  • 13. 
    If radius of droplet becomes half then its terminal velocity will be:

  • Half
  • Double
  • One forth
  • Four times
Report Question
warning
access_time
  Time