Agree
Disagree
✅ The correct answer is option A.
Hydraulics and Fluid Mechanics MCQs
When a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape of
a triangle
a paraboloid
an ellipse
none of these
✅ The correct answer is option B.
The theoretical velocity of jet at vena contracta is (where H = Head of water at vena contracta)
2gH
H2g
2gH
2gH
✅ The correct answer is option D.
A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is
3.53 kN
33.3 kN
35.3 kN
none of these
✅ The correct answer is option C.
The length of a liquid stream while flowing over a weir __________ at the ends of the sill.
expands
does not change
contracts
✅ The correct answer is option C.
The ratio of the inertia force to the gravity force is called Froude number.
Agree
Disagree
✅ The correct answer is option A.
The shear stress-strain graph for a newtonian fluid is a
straight line
parabolic curve
hyperbolic curve
elliptical
✅ The correct answer is option A.
A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is
2.89 kN
8.29 kN
9.28 kN
28.9 kN
✅ The correct answer is option B.
The tangential velocity of the water element having a free vortex is
directly proportional to its distance from the centre
inversely proportional to its distance from the centre
directly proportional to its (distance)2 from the centre
inversely proportional
✅ The correct answer is option B.
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is
0.417 H5/2
1.417 H5/2
4.171 H5/2
7.141 H5/2
✅ The correct answer is option B.