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

Related Mcqs:

1. 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.

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. What is the normal range of exit cone angle of a Venturimeter ?

   A. 2 to 5
   B. 7 to 15
   C. 15 to 25
   D. >25

4. What is the normal range of exit cone angle of a Venturimeter ?

   A. 2 to 5
   B. 7 to 15
   C. 15 to 25
   D. >25

5. A 2″ gate valve fitted in a pipe is replaced by a similar globe valve. Pressure drop in gate valve was Δp. For the same discharge, the pressure drop across globe valve is__________________?

   A. Δp
   B. < Δp
   C. > Δp
   D. Δp2

6. Applying a pressure drop across a capillary results in a volumetric flow rate ‘Q’ under laminar flow conditions. The flow rate for the same pressure drop, in a capillary of the same length but half the radius is____________________?

   A. Q/2
   B. Q/4
   C. Q/8
   D. Q/16

7. The pressure drop per unit length of pipe incurred by a fluid ‘X’ flowing through pipe is Δp. If another fluid ‘Y’ having both the specific gravity & density just double of that of fluid ‘X’, flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be__________________?

   A. Δp
   B. 2Δp
   C. Δp2
   D. Δp/2

8. A gas (density = 1.5 kg/m3, viscosity = 2 × 10‒5 kg/m.s) flowing through a packed bed (particle size = 0.5 cm, porosity = 0.5) at a superficial velocity of 2 m/s causes a pressure drop of 8400 Pa/m. The pressure drop for another gas, with density of 1.5 kg/m3and viscosity of 3 × 10‒5kg/m.s flowing at 3 m/s will be________________?

   A. 8400 Pa/m
   B. 12600 Pa/m
   C. 18900 Pa/m
   D. 16800 Pa/m

9. 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

10. 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