The Mach number for hypersonic flow of compressible fluid is____________________?
A. 1
B. > 1
C. > 4
D. < 2
Fluid Mechanics for Chemical
Priming is needed in a ______________ pump?
Priming is needed in a ______________ pump?
A. Reciprocating
B. Gear
C. Centrifugal
D. Diaphragm
The head developed by a centrifugal pump is largely determined by the____________________?
The head developed by a centrifugal pump is largely determined by the____________________?
A. Power of the pump
B. Nature of the liquid being pumped
C. Angle of the vanes and the speed of the tip of the impeller
D. Vapour pressure of the liquid
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____________________?
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____________________?
A. Q/2
B. Q/4
C. Q/8
D. Q/16
A stream tube is that, which has ______________________ cross-section entirely bounded by stream lines?
A stream tube is that, which has ______________________ cross-section entirely bounded by stream lines?
A. A circular
B. Any convenient
C. A small
D. A large
A fluid element has a velocity V = -y2. xi + 2yx2 . j. The motion at (x, y) = (1/√2, 1) is_________________?
A fluid element has a velocity V = -y2. xi + 2yx2 . j. The motion at (x, y) = (1/√2, 1) is_________________?
A. Rotational and incompressible
B. Rotational and compressible
C. Irrotational and compressible
D. Irrotational and incompressible
Centrifugal compressors compared to reciprocating compressors__________________?
Centrifugal compressors compared to reciprocating compressors__________________?
A. Require less space
B. Have quieter operation
C. Have lower operating costs
D. All A., B. and C.
The ratio of inertial forces to elastic forces is called the __________ number?
The ratio of inertial forces to elastic forces is called the __________ number?
A. Reynolds
B. Mach
C. Euler
D. Weber
The fluid property, due to which, mercury does not wet the glass is__________________?
The fluid property, due to which, mercury does not wet the glass is__________________?
A. Surface tension
B. Viscosity
C. Cohesion
D. Adhesion
The head loss in turbulent flow in a pipe varies________________?
The head loss in turbulent flow in a pipe varies________________?
A. As velocity
B. As (velocity)2
C. Inversely as the square of diameter
D. Inversely as the velocity