Online Chemical Engineering Test - Fluid Mechanics Test 2

Power loss in an orificemeter is __________ that in a venturimeter.

The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid.

Which of the following is not concerned with the fluid-particle interaction ?

The Navier-Stokes equation deals with the law of conservation of

Pick out the wrong statement.

What is the shear rate at the pipe wall, in case of laminar flow of Newtonion fluids in a pipe of diameter 'D' & length 'L' incurring a pressure drop 'Δp' with average velocity 'V_avg'?

Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062.

For flow through a venturi at a particular discharge, the correct relationships among velocities at point X, Y and Z would be

The unit of bulk modulus of elasticity for a liquid in S.I. unit is

The rate of change of moment of momentum represents the __________ by the fluid.

Co-efficient of discharge (C_d) is defined as actual discharge/theoretical discharge and is equal to C_c . C_v; where C_c = Co-efficient of contraction and C_v = co-efficient of velocity. C_d of an orifice is usually about

The curve of metacentre for a floating body __________ the curve of buoyancy.

Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.

Which of the following is a Newtonian fluid?

Unit of mass velocity is

Froude number is the ratio of

Pick out the correct statement pertaining to the flow through a converging-diverging tube.

A rectangular surface 3' x 4', has the lower 3 edge horizontal and 6' below a free oil surface (sp. gr. 0.8). The surface inclination is 300 with the horizontal. The force on one side of the surface is(where, y = specific weight of water)

For the same terminal conditions and fitting size, the least friction loss is incurred in a/an