logo

CuriousTab

CuriousTab

Discussion

Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics Comments
  • Question

  • The discharge through a channel of trapezoidal section is maximum when


  • Options
  • A. width of channel at the top is equal to twice the width at the bottom
  • B. depth of channel is equal to the width at the bottom
  • C. the sloping side is equal to half the width at the top
  • D. the sloping side is equal to the width at the bottom

  • Correct Answer
  • the sloping side is equal to half the width at the top 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

    • Options
    • A. less than
    • B. more than
      • Discuss
    • 2. The hammer blow in pipes occurs when

    • Options
    • A. there is excessive leakage in the pipe
    • B. the pipe bursts under high pressure of fluid
    • C. the flow of fluid through the pipe is suddenly brought to rest by closing of the valve
    • D. the flow of fluid through the pipe is gradually brought to rest by closing of the valve
      • Discuss
    • 3. When the end contractions of the weir are suppressed, then number of end contractions (n) are taken as zero

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 4. The critical depth for a channel is given by (where q = Unit discharge (discharge per unit width) through the channel)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. The metacentric height is the distance between the

    • Options
    • A. centre of gravity of the floating body and the centre of buoyancy
    • B. centre of gravity of the floating body and the metacentre
    • C. metacentre and centre of buoyancy
    • D. original centre of buoyancy and new centre of buoyancy
      • Discuss
    • 6. The variation in the volume of a liquid with the variation of pressure is called its

    • Options
    • A. surface tension
    • B. compressibility
    • C. capillarity
    • D. viscosity
      • Discuss
    • 7. A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. The absolute pressure is equal to

    • Options
    • A. gauge pressure + atmospheric pressure
    • B. gauge pressure - atmospheric pressure
    • C. atmospheric pressure - gauge pressure
    • D. gauge pressure - vacuum pressure
      • Discuss
    • 9. The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

    • Options
    • A. path line
    • B. stream line
    • C. steak line
    • D. potential line
      • Discuss
    • 10. The unit of kinematic viscosity in S. I. units is

    • Options
    • A. N-m/s
    • B. N-s/m2
    • C. m2/s
    • D. N-m
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.