Working of a _______________ pump characterises mixed flow?
Working of a _______________ pump characterises mixed flow?
A. Turbine
B. Piston
C. Diaphragm
D. None of these
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The pressure co-efficient is the ratio of pressure forces to ______________ forces?
The pressure co-efficient is the ratio of pressure forces to ______________ forces?A. Viscous
B. Inertial
C. Gravity
D. Surface tensionUpto what value of ‘Mach number’, a fluid may be considered as incompressible ?
Upto what value of ‘Mach number’, a fluid may be considered as incompressible ?A. 0.03
B. 0.3
C. 3
D. 10Drag co-efficient for flow past immersed body is the ratio of _____________ to the product of velocity head and density?
Drag co-efficient for flow past immersed body is the ratio of _____________ to the product of velocity head and density?A. Shear stress
B. Shear force
C. Average drag per unit projected area
D. None of theseIf the discharge of a centrifugal pump is throttled, then its suction lift_______________________?
If the discharge of a centrifugal pump is throttled, then its suction lift_______________________?A. Increases
B. Decreases
C. Remains unchanged
D. Data insufficient to predictA fluid whose apparent viscosity increases with shear rate is termed as the _____________ fluid?
A fluid whose apparent viscosity increases with shear rate is termed as the _____________ fluid?A. Newtonian
B. Viscous
C. Dilatant
D. Non-viscousDrag force acting on a body does not depend upon the____________________?
Drag force acting on a body does not depend upon the____________________?A. Density of the fluid
B. Density of the body
C. Velocity of the body
D. Projected area of the body