1021. An ideal fluid is :

A. Frictionless and incompressible *
B. One which complies with Newton’s law of consistency
C. Highly viscous
D. None of these

1022. Steady flow occurs when :

A. Conditions change steadily with time
B. At any given time, the conditions are the same at the adjacent locations.
C. Conditions don’t change with time anytime *
D. The rate of change in velocity remains constant.

1023. Discharge (FT3/Sec) from a 24 inch pipe of water at 10 Ft/Sec will be ______ Ft3/Sec.

A. 7.65
B. 32.36
C. 48.22
D. 125.6 *

1024. Bernoulli’s equation describes :

A. Mechanical Energy balance in likely stream *
B. Kinetic Energy balance in laminar flow
C. Mechanical Energy balance in turbulent flow
D. Mechanical Energy balance in boundary layer

1025. The Kinetic Energy correction factor for laminar flow’s velocity distribution is:

A. 0.5
B. 1.66 *
C. 1
D. 2

1026. The following is the momentum correction factor for the laminar flow velocity distribution:

A. 1.3
B. 1.66
C. 2.5
D. None of these *

1027. The loss due to sudden contraction is proportional to :

A. Velocity
C. Turbulence
D. None of these

1028. The value of critical Remolds number for pipe flow is :

A. 1,300 *
B. 10,000
C. 100,000
D. None of these

1029. The Reynolds number for a water stream traveling at room temperature through a pipe with a diameter of 2 cm and a typical speed of 5 cm/sec is round.:

A. 2,000
B. 10
C. 100
D. 1000 *

1030. Shear stress in a fluid flowing in a round pipe :

A. Varies parabolically across the cross section
B. Remains constant over the cross section
C. Has a center value of zero and a linear relationship with the radius *
D. Is zero at the wall and goes up in a straight line to the center.