A. Geometrical similarity only
B. Dynamic similarity only
C. Both geometrical and dynamic similarity
D. All geometrical, dynamic and kinematic similarity
Related Mcqs:
- Design of the casing of centrifugal pump should be such as to minimise the________________?
A. Back flow through impeller
B. Loss of kinetic head
C. Loss of static head
D. None of these - An ideal nozzle design aims at________________?
A. Minimising wall friction
B. Suppressing boundary layer separation
C. Both A. & B.
D. Neither A. nor B. - The fluid velocity varies as the square root of the cylindrical pipe diameter in case of steady state laminar flow at constant pressure drop of _____________ fluid?
A. Dilatent
B. Pseudo-plastic
C. Bingham plastic
D. Newtonian - In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow ?
A. Discharge of water by a centrifugal pump being run at a constant rpm
B. Water flow in the suction and discharge pipe of a reciprocating pump
C. Water discharge from a vertical vessel in which constant level is maintained
D. Low velocity flow of a highly viscous liquid through a hydraulically smooth pipe - Drag is defined as the force exerted by the___________________?
A. Fluid on the solid in a direction opposite to flow
B. Fluid on the solid in the direction of flow
C. Solid on the fluid
D. None of these - Critical velocity in a pipe flow_________________?
A. Increases as fluid viscosity increases
B. Increases as pipe diameter increases
C. Independent of fluid density
D. None of these - The losses in open channel flow generally vary as the ________________?
A. Inverse of the roughness
B. First power of the roughness
C. Square of the velocity
D. Inverse square of hydraulic radius - An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonian fluid beyond yield stress. Which of the following is an ideal plastic ?
A. Sewage sludge
B. Rubber latex
C. Blood
D. Sugar solution - Hot wire anemometer is used to measure the_________________?
A. Velocity of liquids
B. Temperature of liquids
C. Velocity of gases
D. Pressure of liquids - A mixed flow centrifugal pump_______________________?
A. Employs such an impeller, through which the flow is a combination of radial & axial flow
B. Mixes the two fluids before pumping them
C. Pumps the two fluids separately and then mixes them
D. Employs impellers in both the radial & axial directions
