Search
.Management Sciences
Category: Fluid Mechanics for Chemical
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.
For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by _________________?
A. √(2gh)
B. C.V. √(2gh)
C. Cd √(2gh)
D. Cc √(2gh)
While starting a centrifugal pump, its delivery valve should be kept___________________?
A. Opened
B. Closed
C. Either opened or closed; it does not make any difference
D. Either opened or closed; depending on the fluid viscosity
For a specific centrifugal air blower operating at constant speed & capacity, the power requirement and pressure vary_______________?
A. Directly as square of gas density
B. Directly as gas density
C. Directly as square root of gas density
D. Inversely as gas density
In the Newton’s law range, the terminal velocity of a solid spherical particle falling through a stationary fluid mass is ______________ the fluid viscosity?
A. Directly proportional to
B. Inversely proportional to
C. Inversely proportional to the square root of
D. Independent of
Capillary tube method of viscosity measurement is based on the ________________?
A. Hagen-Poiseuille’s equation
B. Stoke’s law
C. Navier-stokes equation
D. None of these
Flow measurement in an open channel is done by a/an ________________?
A. Venturimeter
B. Orificemeter
C. Weir
D. Rotameter
In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant ?
A. Rotational
B. Unsteady
C. Turbulent
D. Non-uniform
With increase in the temperature, viscosity of a liquid____________________?
A. Increases
B. Decreases
C. Remain constant
D. May increase or decrease; depends on the liquid
Recent Comments