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  • Question
  • The total pressure on an immersed surface inclined at an angle ? with the liquid surface is


  • Options
  • A. wA
  • B. wx
  • C. wAx
  • D. wAx/sin ?

  • Correct Answer
  • wAx 


  • Hydraulics and Fluid Mechanics problems


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    • 1. The power absorbed (in watts) in overcoming the viscous resistance of a footstep bearing is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 2. A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

    • Options
    • A. real fluid
    • B. ideal fluid
    • C. newtonian fluid
    • D. non-newtonian fluid
    • Discuss
    • 3. A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

    • Options
    • A. coincides with
    • B. lies below
    • C. lies above
    • Discuss
    • 4. If the depth of water in an open channel is greater than the critical depth, the flow is called

    • Options
    • A. critical flow
    • B. turbulent flow
    • C. tranquil flow
    • D. torrential flow
    • Discuss
    • 5. The pressure of a liquid measured with the help of a piezometer tube is

    • Options
    • A. vacuum pressure
    • B. gauge pressure
    • C. absolute pressure
    • D. atmospheric pressure
    • Discuss
    • 6. The flow in a pipe or channel is said to be non-uniform when

    • Options
    • A. the liquid particles at all sections have the same velocities
    • B. the liquid particles at different sections have different velocities
    • C. the quantity of liquid flowing per second is constant
    • D. each liquid particle has a definite path
    • Discuss
    • 7. A venturiflume is used to measure

    • Options
    • A. pressure of liquid
    • B. discharge of liquid
    • C. pressure difference between two points in a channel
    • D. pressure difference between two points in a pipe
    • Discuss
    • 8. The pressure measured with the help of a pressure gauge is called

    • Options
    • A. atmospheric pressure
    • B. gauge pressure
    • C. absolute pressure
    • D. mean pressure
    • Discuss
    • 9. The velocity at which the flow changes from laminar flow to turbulent flow is called

    • Options
    • A. critical velocity
    • B. velocity of approach
    • C. sub-sonic velocity
    • D. super-sonic velocity
    • Discuss
    • 10. A flow is called hyper-sonic, if the Mach number is

    • Options
    • A. less than unity
    • B. unity
    • C. between 1 and 6
    • D. none of these
    • Discuss


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