Q. The variable required to be known in correlations used for estimating the horse power of a centrifugal gas compressor and hence its cost are

P. Inlet pressure
Q. Compressor rpm
R. Delivery pressure
S. Volumetric flow rate at inlet.

View solution

Q. Theoretical head developed by a centrifugal pump does not depend upon the __________ the impeller.

View solution

Q. An ideal fluid is

View solution

Q. In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where, T = absolute temperature )

View solution

Q. 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

View solution

Q. Cd, C and Cv are related (for flow through an orifice) as
(where, Cd = discharge co-efficient
Cc = co-efficient of contraction = area of jet at vena-contracta / area of opening
Cv = co-efficient of velocity = actual velocity at vena-contracta / Theoretical velocity )

View solution

Q. In an incompressible fluid, the density is

View solution

Q. Check valves are used

View solution

Q. Velocity distribution for flow between two fixed parallel plates

View solution

Q. Priming is needed in a __________ pump.

View solution

Q. An ideal nozzle design aims at

View solution

Q. Which of the fluid forces are not considered in the Reynold's equation of flow ?

View solution

Q. For ideally incompressible fluid, the Mach number will be

View solution

Q. In case of isentropic flow, the speed of sound in an ideal gas is proportional to (where M = molecular weight of the gas)

View solution

Q. Boundary layer separation is caused by the

View solution

Q. With increase in temperature, the vapor pressure of liquids

View solution

Q. A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be __________ cms.

View solution

Q. Remote control valve is a __________ valve.

View solution

Q. Which of the following quantities are computed by using the hydraulic radius for non-circular ducts ?

View solution

Q. Centre of pressure in an immersed body is __________ the centre of gravity.

View solution