Fluid Mechanics and Hydraulic Machines MCQs | Page - 14

Dear candidates you will find MCQ questions of Fluid Mechanics and Hydraulic Machines here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

M

Mr. Dubey • 95.57K Points
Coach

Q. An irrational flow is one in which

  • (A) The stream lines of flow are curved and closely spaced
  • (B) Along which the stream function ψ = constant
  • (C) Which are parallel to the equipotential lines
  • (D) Which exist in irrotional flow only.
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. In a fluid-flow the stream lines are lines

  • (A) Along which the vorticity is zero
  • (B) Vorticity
  • (C) Either of the above
  • (D) None of the above.
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. ....... is defined mathematically as the line integral of the tangential velocity about a closed path (contour).

  • (A) Circulation
  • (B) Two-dimensional flow only
  • (C) Three-dimensional flow
  • (D) Uniform flow only.
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. The concept of stream function which is based on the principle of continuity is applicable to

  • (A) Irrotational flow only
  • (B) Irrotational
  • (C) Either of the above
  • (D) None of the above.
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. The motion is described as ......when the components of rotation or vorticity are zero throughout certain point of the fluid.

  • (A) Rotational
  • (B) Stream function
  • (C) Circulation
  • (D) Vorticity.
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. ........ is defined as a scalar function of space and time such that its negative derivative with respect to any direction gives the fluid velocity in that direction.

  • (A) Velocity potential function
  • (B) Steady, compressible, irrotational
  • (C) Unsteady, incompressible, rotational
  • (D) Steady, incompressible, irrotational.
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. If velocity potential (φ) satisfies the Laplace equation, it represents the possible..... flow.

  • (A) Unsteady, compressible, rotational
  • (B) Intersect each other at various different angles forming irregular-shaped nets
  • (C) Indicate the direction and magnitude of vector
  • (D) None of the above.
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. A flow net is a graphical representation of strea lines and equipotential lines such that these lines

  • (A) Intersect each other orthogonally forming curvilinear squares
  • (B) V2/2g
  • (C) V3/2g
  • (D) V2/2g2
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. Velocity head is given by

  • (A) V/g
  • (B) dp/ρ + v.dv + g.dz = 0
  • (C) dp/ρ + v.dv + g2.dz = 0
  • (D) dp/ρ2 + v.dv + g.dz = 0
Show Answer Discuss Share

M

Mr. Dubey • 95.57K Points
Coach

Q. Euler’s equation (in differential form) is written as:

  • (A) dp/ρ + v2.dv + g.dz = 0
  • (B) Orificemeter
  • (C) Pitot tube
  • (D) All the above.
Show Answer Discuss Share

Jump to

Download our easy to use, user friendly Android App from Play Store. And learn MCQs with one click.

Image