____________ is used for measuring the static pressure exerted on the wall by a fluid flowing parallel to the wall in a pipeline?

Related Mcqs:

1. Bernoulli’s equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli’s equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent. D. Fluid is compressible. E. Fluid is incompressible ?

   A. A, C, D
   B. B, D, E
   C. A, B, E
   D. A, D, E

2. 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

3. Venturimeters, orificemeters and nozzles are used to measure the fluid discharge from a pipeline. The average fluid velocity in a pipeline can be measured by a/an________________?

   A. Weir
   B. Hot wire anemometer
   C. Cup and vane anemometer
   D. None of these

4. 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

5. The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which “sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis”. The centre of pressure of a rectangular surface (of width ‘w’) immersed vertically in a static mass of fluid is at a depth of (where, y = depth of the liquid) ?

   A. 1/(y/3)
   B. 2y/3
   C. 1/(y/4)
   D. 3y/4

6. The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a____________________?

   A. Weir
   B. Pitot tube
   C. Kennison nozzle
   D. V-notch

7. In a/an _____________, the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure?

   A. Rotameter
   B. Pitot tube
   C. Venturimeter
   D. Flow nozzle

8. Pressure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as___________________?

   A. V1.8
   B. V-0.2
   C. V2.7
   D. V2

9. The equivalent diameter for pressure drop calculation for a fluid flowing through a rectangular cross-section channels having sides ‘x’ & ‘y’ is given by_________________?

   A. 2xy/(x + y)
   B. xy/(x + y)
   C. (x + y)/2xy
   D. (x + y)/xy

10. The fluid velocity varies as the cube of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop for ____________ fluid?

    A. Newtonian
    B. Pseudo-plastic
    C. Dilatent
    D. Bingham plastic