A. pipe diameter
B. throat diameter
C. angle of diverging section
D. both pipe diameter as well as throat diameter
Related Mcqs:
- Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by________________?
A. 5%
B. 10%
C. 15%
D. 20% - Metacentric height for small values of angle of heel is the distance between the________________?
A. centre of gravity and centre of buoy-ancy
B. centre of gravity and metacentre
C. centre of buoyancy and metacentre
D. free surface and centre of buoyancy - Ay between two stream lines represents________________?
A. velocity
B. discharge
C. head
D. pressure - Separation of flow occurs when_________________?
A. the pressure intensity reaches a minimum
B. the cross-section of a channel is reduced
C. the boundary layer comes to rest
D. all of the above - Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is________________?
A. less than d
B. between d and 1.5 d
C. between 1.5 d and 2d
D. greater than 2d - The maximum thickness of boundary layer in a pipe of radius r is____________________?
A. 0
B. r/2
C. r
D. 2r - The discharge over a broad crested weir is maximum when the depth of flow is_______________?
A. H/3
B. H/2
C. 2 H/5
D. 2 H/3where H is the available head
- Coefficient of velocity for Borda’s mouth piece running full is________________?
A. 0.611
B. 0.707
C. 0.855
D. 1.00 - When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies________________?
A. linearly with radial distance
B. as the square of the radial distance
C. inversely as the square of the radial distance
D. inversely as the radial distance - Select the correct statement?
A. The absolute roughness of a pipe de-creases with time
B. A pipe becomes smooth after using for long time
C. The friction factor decreases with time
D. The absolute roughness increases with time
