A. equal to atmospheric
B. less than atmospheric
C. more than atmospheric
D. none of the above
Related Mcqs:
- If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is_______________?
A. 1
B. 4/3
C. 2
D. 4 - The shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is_______________?
A. constant over the cross section
B. parabolic distribution across the section
C. zero at the mid plane and varies linearly with distance from mid plane
D. zero at plates and increases linearly to midpoint - The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is_______________?
A. 1/3 R
B. 1/2 R
C. 2/3 R
D. 3/4Rwhere R is the radius of pipe
- The ratio of average velocity to maximum velocity for steady laminar flow in circular pipes is_______________?
A. 1/2
B. 2/3
C. 3/2
D. 2 - For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is_______________?
A. constant
B. dependent only on Reynolds number
C. a function of Reynolds number and relative roughness
D. dependent on relative roughness only - 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
- The theoretical value of coefficient of contraction of a sharp edged orifice is_______________?
A. 0.611
B. 0.85
C. 0.98
D. 1.00 - The unit of kinematic viscosity is_______________?
A. gm/cm-sec2
B. dyne-sec/cm2
C. gm/cm2-sec
D. cm2/sec - An ideal fluid is_______________?
A. one which obeys Newton’s law of viscosity
B. frictionless and incompressible
C. very viscous
D. frictionless and compressible - An open tank contains 1 m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of tank will be________________?
A. 4 kN/m2
B. 10 kN/m2
C. 12 kN/m2
D. 14 kN/m2
