H.W.-1 Q-1 A pressure of 10 kPa, gage, is applied to the surface of water in an enclosed tank. The distance from the water surface to the outlet is 0.5 m. 10 kPa gage The temperature of the water is 20-C. Find the velocity (m/s) of water at the outlet. The speed of the water surface is much less than the water speed at the outlet. 0.5 m
H.W.-1 Q-1 A pressure of 10 kPa, gage, is applied to the surface of water in an enclosed tank. The distance from the water surface to the outlet is 0.5 m. 10 kPa gage The temperature of the water is 20-C. Find the velocity (m/s) of water at the outlet. The speed of the water surface is much less than the water speed at the outlet. 0.5 m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:H.W.-1
Q-1 A pressure of 10 kPa, gage, is applied to the surface of water in an
enclosed tank. The distance from the water surface to the outlet is 0.5 m.
10 kPa gage
The temperature of the water is 20-C. Find the velocity (m/s) of water at the
outlet. The speed of the water surface is much less than the water speed at
the outlet.
0.5 m
Transcribed Image Text:Q-4 The apparatus shown in the figure is used to measure the velocity
of air at the center of a duct having a 10 cm diameter. A tube mounted
at the center of the duct has a 2 mm diameter and is attached to one
leg of a slant-tube manometer. A pressure tap in the wall of the duct is
connected to the other end of the slant-tube manometer. The well of
10 cm
the slant-tube manometer is sufficiently large that the elevation of the
fluid in it does not change significantly when fluid moves up the leg of
p = 150 kPa
T= 20°C
the manometer. The air in the duct is at a temperature of 20°C, and
the pressure is 150 kPa. The manometer liquid has a specific gravity
30
of 0.7, and the slope of the leg is 30°. When there is no flow in the duct,
the liquid surface in the manometer lies at 2.3 cm on the slanted scale.
When there is flow in the duct, the liquid moves up to 6.7 cm on the
slanted scale. Find the velocity of the air in the duct. Assuming a
uniform velocity profile in the duct, calculate the rate of flow of the air.
S= 0.7
-6,7 cm
-2.3 cm
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