The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the ?

Related Mcqs:

1. With diminishing cross-sectional area in case of subsonic flow in a converging nozzle, the____________________?

   A. Velocity increases
   B. Pressure decreases
   C. Both A. & B.
   D. Neither A. nor B.

2. In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow ?

   A. Discharge of water by a centrifugal pump being run at a constant rpm
   B. Water flow in the suction and discharge pipe of a reciprocating pump
   C. Water discharge from a vertical vessel in which constant level is maintained
   D. Low velocity flow of a highly viscous liquid through a hydraulically smooth pipe

3. Permanent loss in a Venturimeter is about ___________ percent of the pressure drop in the upstream cone?

   A. 1
   B. 10
   C. 40
   D. 70

4. Power loss in an orificemeter is _____________ that in a Venturimeter?

   A. Less than
   B. Same as
   C. More than
   D. Data insufficient, cannot be predicted

5. Permanent pressure loss in a well designed Venturimeter is about _____________ percent of the venturi differential?

   A. 1
   B. 10
   C. 30
   D. 50

6. The energy loss over a length of pipeline according to Darcy-Weisbach equation for pipe flow is _______________ the mean velocity of flow?

   A. Directly proportional to
   B. Directly proportional to square of
   C. Inversely proportional to
   D. Inversely proportional to square of

7. In case of a pipe exit fitted with a nozzle, the____________________?

   A. Conversion of kinetic head to pressure head is facilitated
   B. Conversion of pressure head to kinetic head is facilitated
   C. Power transmitted through the nozzle is maximum, when the head lost due to friction in the
   pipe is equal to one third of the total supply head
   D. Both B. and C.

8. The exit cone angle in case of a standard Venturimeter is _____________ the entrance cone angle?

   A. Smaller than
   B. Greater than
   C. Equal to
   D. Either A. or B.

9. In case of Venturimeter, friction losses are about _____________ percent of maximum velocity head?

   A. 2
   B. 8
   C. 12
   D. 20

10. Select the wrong statement pertaining to flow of an incompressible fluid through a Venturimeter ?

    A. For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that
    leaving the Venturimeter
    B. Discharge of fluid through a Venturimeter depends upon the gage difference irrespective of
    the orientation of Venturimeter
    C. Venturimeter occupies less space than an orificemeter
    D. Venturimeter incurs less power loss compared to an equivalent orificemeter