A. Stream line body
B. Two dimensional body
C. Bluff body
D. None of these
A. 0
B. 1
C. < 1
D. > 1
A. Cavitation
B. Low speed of impeller
C. Its operation with delivery valve closed for considerable time after starting the pump
D. Off centering of pump with motor
A. Direction control
B. Back pressure
C. Relief
D. Pressure reduction
A. Unsteady through unchanged cross-section
B. Steady through changing cross-section
C. Steady and the cross-section is unchanged
D. Unsteady and the cross-section is changed
A. Velocity is uniform at any cross-section
B. Velocity gradient is zero at the solid surface
C. Resistance between the surface & the fluid is lesser as compared to that between the fluid
layers themselves
D. Velocity is not zero at the solid surface
A. Zero at the pipe wall and is a universal constant
B. Independent of radial distance from the pipe axis
C. Independent of the shear stress
D. Useful for computing laminar flow problems