Fluid Mechanics and Hydraulic Machines – Quiz 07
Posted by Vishnu on August 3rd, 2011 08:53 PM | No Comment
61. The loss of head due to sudden contraction of a pipe is equal to
a. ( 1/Cc ̶ 1 )2 V2
2g
b. (1 ̶ 1/Cc)2 V2
2g
c. 1/Cc (1 ̶ V22 )
2g
d. none of the above.
62. Hydraulic gradient line (H.G.L.) represents the ...
Fluid Mechanics and Hydraulic Machines – Quiz 06
Posted by Vishnu on August 3rd, 2011 08:50 PM | No Comment
51. For the laminar flow through a pipe, the shear stress over the cross- section
a. varies inversely as the distance from the centre of the pipe
b. varies directly as the distance from the surface of the pipe
c. varies directly as ...
Fluid Mechanics and Hydraulic Machines – Quiz 05
Posted by Vishnu on August 3rd, 2011 12:21 AM | No Comment
41. The flow rate through a circular pipe is measured by
a. Pitot-tube
b. venture-meter
c. orifice-meter
d. None of the above
42.The range for coefficient of discharge (Cd) for a ventury meter is
a.0.6 to 0.7
b. 0.7 to 0.8
c. 0.8 to 0.9
d. 0.95 to 0.99
43. ...
Fluid Mechanics and Hydraulic Machines – Quiz 04
Posted by Vishnu on August 3rd, 2011 12:18 AM | No Comment
31. Bernoulli’s theorem deals with the law of conservation of
a. mass
b. momentum
c. energy
d. none of the above
32. Continuity equation deals with the law of conservation of
a. mass
b. momentum
c. energy
d. none of the above
33. Irrotational flow means
a. the fluid does not ...
Fluid Mechanics and Hydraulic Machines – Quiz 03
Posted by Vishnu on August 3rd, 2011 12:14 AM | No Comment
21. For a floating body, the buoyancy force passes though the
a.centre of gravity of the body
b. centre of gravity of the submerged part of the body
c. meta-centre of the body
d. centroid of the liquid displaced by the body.
22. The condition ...
Fluid Mechanics and Hydraulic Machines – Quiz 02
Posted by Vishnu on August 3rd, 2011 12:10 AM | No Comment
11.The gases are considered incompressible when mach number
a. is equal to 1.0 b. is equal to 0.50
c. is more than 0.3 d. is less than 0.2
12. Pascal’s law states that pressure at a point is equal in all direction
a. ...
Fluid Mechanics and Hydraulic Machines – Quiz 01
Posted by Vishnu on August 2nd, 2011 11:59 PM | No Comment
1. An ideal fluid is defined as fluid which
a. Is compressible b. is incompressible
c. is incompressible and non-viscous (in viscid)
d. has negligible ...