The hydraulic mean depth for a circular pipe of diameter d is ____________________?
A. d/2
B. d/3
C. d/4
D. d/6
Water Management
The loss of head due to friction according to Darcy’s formula is _____________________?
The loss of head due to friction according to Darcy’s formula is _____________________?
A. 4fLv2/gd
B. 4fLv2/2gd
C. 4fLv/gd
D. 4fLv/2gd
Theoretical velocity of the jet at Vena Contracta is determined by ________________?
Theoretical velocity of the jet at Vena Contracta is determined by ________________?
A. (2 gh)1/2
B. 2(gh)1/2
C. 2g (h)1/2
D. 2gh
A flow in which the stream lines may be represented by a straight line is called____________________?
A flow in which the stream lines may be represented by a straight line is called____________________?
A. Non-uniform flow
B. un-steady flow
C. steady flow
D. one-dimension flow
A flow in which the quantity of liquid flowing per second is constant is called___________________?
A flow in which the quantity of liquid flowing per second is constant is called___________________?
A. Uniform flow
B. Steady flow
C. Turbulent flow
D. None of these
When ever a body is immersed wholly or partially in water, it is lifted up by a force equal to the weight of water displaced by the body ?
When ever a body is immersed wholly or partially in water, it is lifted up by a force equal to the weight of water displaced by the body ?
A. Archimed’s Principle
B. Law of gravity
C. Newton’s law of otion
D. None of these
The water force per meter length on a vertical wall is equal to_________________?
The water force per meter length on a vertical wall is equal to_________________?
A. w H
B. W.H/2
C. WH2 2
D. wh2
The property of liquid which controls its rate of flow is called __________________?
The property of liquid which controls its rate of flow is called __________________?
A. Capillarity
B. Compressibility
C. Viscosity
D. Specific gravity
The mercury in a glass tube assumes convex shape at the top because of_________________________?
The mercury in a glass tube assumes convex shape at the top because of_________________________?
A. Cohesion
B. Adhesion
C. Surface Tension
D. Viscosity
The experiment of capillary rise is performed in a glass tube of smaller diameter, because___________________?
The experiment of capillary rise is performed in a glass tube of smaller diameter, because___________________?
A. It is easily visible
B. Glass tube is cheaper than metal
C. Glass tube is lighter than metallic tube
D. Capillary rise is significant