1. A4 high, 3 diameter tank whose top is open to the atmosphere is initially filled with water. The discharge plug from the bottom of the tank is pulled out and a water jet whose diameter is 0.5 streams out as shown in the figure below. The average velocity of the jet is V-2gh, where h is the height of water in the tank, measured from the center of the hole (variable), and g is the gravitational acceleration. If it takes 757seconds to drop the water level from 4 to 2 from the center of the hole, how long will it take for the water level into the tank to drop to 1' from the bottom of the tank starting from 2 from the bottom of the tank? Air Water t-? D
1. A4 high, 3 diameter tank whose top is open to the atmosphere is initially filled with water. The discharge plug from the bottom of the tank is pulled out and a water jet whose diameter is 0.5 streams out as shown in the figure below. The average velocity of the jet is V-2gh, where h is the height of water in the tank, measured from the center of the hole (variable), and g is the gravitational acceleration. If it takes 757seconds to drop the water level from 4 to 2 from the center of the hole, how long will it take for the water level into the tank to drop to 1' from the bottom of the tank starting from 2 from the bottom of the tank? Air Water t-? D
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:1. A4' high, 3' diameter tank whose top is open to the atmosphere is initially filled with
water. The discharge plug from the bottom of the tank is pulled out and a water jet
whose diameter is 0.5" streams out as shown in the figure below. The average velocity
of the jet is V-2gh, where h is the height of water in the tank, measured from the center
of the hole (variable), and g is the gravitational acceleration. If it takes 757seconds to
drop the water level from 4' to 2 from the center of the hole, how long will it take for the
water level into the tank to drop to 1' from the bottom of the tank starting from 2 from
the bottom of the tank?
Air
Water
2'
7575
ĭ, t=?
-Dank
2. Determine the Universal Saybolt Viscosity of water at t=3s. Convert the answer to Poise,
3. Convert the pressure gauge reading of 3bar to absolute pressure in psi and kpa.
4. What is the kinematic viscosity of kerosene in ft /s at u=1.64centiPoise? Density of
kerosene is 775kg/m?
5. What is the diameter of the other end of the pipe connection with V= 5ft/s if on the other
end of the pipe is 3/4" diameter with 3ft/s?
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