Lakshya Education MCQs

Question: The flow in which conditions do not change with time at any point, is known as
Options: dimensional flow
B.uniform flow
C.steady flow
D.turbulent flow
Answer: Option C

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More Questions on This Topic :

Question 1. The tendency of a liquid surface to contract is due to the following property
  1.    cohesion
  2.    adhesion
  3.    viscosity
  4.    surface tension
Answer: Option D
Question 2. In case of an airfoil, the separation of flow occurs
  1.    at the extreme rear of body
  2.    at the extreme front of body
  3.    midway between rear and front of body
  4.    any where between rear and front of body depending upon Reynolds number
Answer: Option A
Question 3. The vapour pressure over the concave surface is
  1.    less man the vapour pressure over the plane surface
  2.    equal to the vapour pressure over the plane surface
  3.    greater than the vapour pressure over the plane surface
  4.    zero
Answer: Option A
Question 4. The fluid forces considered in the Navier Stokes equation are
  1.    gravity, pressure and viscous
  2.    gravity, pressure and turbulent
  3.    pressure, viscous and turbulent
  4.    gravity, viscous and turbulent
Answer: Option A
Question 5. Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is
  1.    less than d
  2.    between d and 1.5 d
  3.    between 1.5 d and 2d
  4.    greater than 2d
Answer: Option A
Question 6. The property of fluid by virtue of which it offers resistance to shear is called
  1.    surface tension
  2.    adhesion
  3.    cohesion
  4.    viscosity
Answer: Option D

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