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

Related Mcqs:

1. Venturimeter and orificemeter measures the _____________ of the fluid?

   A. Pressure
   B. Maximum velocity
   C. Average velocity
   D. Point velocity

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

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

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

   A. Length is shorter
   B. Throat diameter is more
   C. Sudden expansion of flow in the downstream occurs
   D. Distance between the throat and the inlet is more

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

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

5. 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.

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

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

7. The most serious disadvantage of an orificemeter is that________________?

   A. It is not very accurate
   B. It is very costly
   C. Most of the pressure drop is not recoverable
   D. It is not suitable for measuring gas flow

8. With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss_______________?

   A. Decreases
   B. Increases
   C. Remain constant
   D. Increases linearly

9. A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be _______________ cms?

   A. 17
   B. 42
   C. 84
   D. 1.8

10. Vena-contracta formed during flow of a liquid through an orificemeter has__________________?

    A. Minimum liquid cross-section
    B. More diameter compared to orifice diameter
    C. Minimum velocity of fluid stream
    D. None of these