Related Mcqs:

1. Drag force acting on a body does not depend upon the____________________?

   A. Density of the fluid
   B. Density of the body
   C. Velocity of the body
   D. Projected area of the body

2. In which of the following body shapes, the pressure drag is large compared to the friction drag ?

   A. Stream line body
   B. Two dimensional body
   C. Bluff body
   D. None of these

3. The ratio of wall drag to total drag in the Stoke’s law range is_________________?

   A. 0.5
   B. 1
   C. 1/3
   D. 2/3

4. The ratio of the wall drag to the form drag in the Stoke’s law range (for motion of spherical particles in a stationary fluid) is__________________?

   A. 0.5
   B. 1
   C. 2
   D. 0.33

5. The frictional resistance in laminar flow does not depend on the_________________?

   A. Area of surface in contact
   B. Flow velocity
   C. Fluid temperature
   D. Pressure of flow

6. The co-efficient of drag and lift for an incompressible fluid depends on the_________________?

   A. Reynolds number
   B. Froude number
   C. Mach number
   D. All A., B. and C.

7. Theoretical head developed by a centrifugal pump does not depend upon the _____________ the impeller?

   A. Radius of
   B. Speed of
   C. Fluid velocity leaving
   D. None of these

8. The discharge co-efficient for an orifice meter does not depend upon the ___________________?

   A. Pipe length
   B. Ratio of pipe diameter to orifice diameter
   C. Type of orifice & the Reynolds number
   D. Pipe diameter

9. Location of vena-contracta in an orificemeter does not depend upon the________________?

   A. Type of orifice
   B. Density, viscosity & compressibility of the fluid
   C. Ratio of pipe diameter to orifice diameter
   D. Pipe roughness

10. The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the_________________?

    A. Discharge
    B. Suction
    C. Suction minus vapor pressure of the liquid at suction temperature
    D. Discharge minus vapor pressure of the liquid at the discharge temperature