logo

CuriousTab

CuriousTab

Discussion

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

  • The dynamic viscosity of gases __________ with rise in temperature.


  • Options
  • A. remain unaffected
  • B. increases
  • C. decreases

  • Correct Answer
  • increases 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions)

    • Options
    • A. Cd(L - nH)2gH
    • B. Cd(L - 0.1nH)2gH3/2
    • C. Cd(L - nH)2gH2
    • D. Cd(L - 0.2nH)2gH5/2
      • Discuss
    • 2. Venturimeter is used to

    • Options
    • A. measure the velocity of a flowing liquid
    • B. measure the pressure of a flowing liquid
    • C. measure the discharge of liquid flowing in a pipe
    • D. measure the pressure difference of liquid flowing between two points in a pipe line
      • Discuss
    • 3. A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.

    • Options
    • A. steady
    • B. streamline
    • C. turbulent
    • D. unsteady
      • Discuss
    • 4. The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

    • Options
    • A. plus
    • B. minus
      • Discuss
    • 5. The specific weight of compressible fluids does not remain constant.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain.

    • Options
    • A. equal to
    • B. directly proportional
    • C. inversely proportional
      • Discuss
    • 7. Bernoulli's equation is applied to

    • Options
    • A. venturimeter
    • B. orifice meter
    • C. pitot tube
    • D. all of these
      • Discuss
    • 8. The velocity at which the turbulent flow starts is known as higher critical velocity.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 9. The property of a liquid which enables it to resist tensile stress is called its surface tension.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 10. The discharge through a channel of rectangular section will be maximum, if

    • Options
    • A. its depth is twice the breadth
    • B. its breadth is twice the depth
    • C. its depth is thrice the breadth
    • D. its breadth is thrice the depth
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.