WA03_ CIVL2611 CIVL9611 Introductory Fluid Mechanics

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The University of Sydney *

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2611

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Mechanical Engineering

Date

Jan 9, 2024

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pdf

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5

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2022/8/22 中午 12:07 WA03: CIVL2611 CIVL9611 Introductory Fluid Mechanics https://canvas.sydney.edu.au/courses/44202/quizzes/195793 1/5 WA03 Due Aug 23 at 23:59 Points 100 Questions 4 Available Aug 16 at 0:00 - Sep 2 at 11:59 Time Limit None Allowed Attempts 2 Attempt History Attempt Time Score LATEST Attempt 1 12 minutes 100 out of 100 Answers will be shown after your last attempt Score for this attempt: 100 out of 100 Submitted Aug 22 at 11:51 This attempt took 12 minutes. Take the Quiz Again 10 / 10 pts Question 1 A tank of water of depth h that is open to the atmosphere is shown below. There is a rectangular plate located on the left-hand side of the bottom of the tank as shown.
2022/8/22 中午 12:07 WA03: CIVL2611 CIVL9611 Introductory Fluid Mechanics https://canvas.sydney.edu.au/courses/44202/quizzes/195793 2/5 The location of the resultant force (center of pressure) on the plate, x , is given by: c x = L c x = L/2 c x =L/3 c x = h/2 c x = h/3 c 10 / 10 pts Question 2 A tank of water open to the atmosphere with a depth h is shown below. The left side of the tank is at an angle.
2022/8/22 中午 12:07 WA03: CIVL2611 CIVL9611 Introductory Fluid Mechanics https://canvas.sydney.edu.au/courses/44202/quizzes/195793 3/5 The location y of the horizontal force F on the rectangular plate is given by: H H y = h/2 H y = h/3 H y = L/2 H y = L/3 H y = (L - h)/3 H 40 / 40 pts Question 3 A 3-m-wide, 10-m-high rectangular gate is located at the end of a rectangular passage that is connected to a large open tank filled with water as shown below. The gate is hinged at its bottom and held closed by a horizontal force, F , located at the center of the gate. The maximum value for F is 4,000 kN. Determine the maximum water depth, h (in meters) , above the center of the gate that can exist without the gate opening. H H
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2022/8/22 中午 12:07 WA03: CIVL2611 CIVL9611 Introductory Fluid Mechanics https://canvas.sydney.edu.au/courses/44202/quizzes/195793 4/5 15.26 40 / 40 pts Question 4 An open tank has a vertical partition and on one side contains gasoline with a density ρ = 657 kg/m at a depth of 7.2 m, as shown in the figure below. A rectangular gate that is 7.2 m high and 4.1 m wide and hinged at one end is located in the partition. Water is slowly added to the empty side of the tank. At what depth, h (in meters) , will the gate start to open? The density of water is 998 kg/m . 3 3 6.26
2022/8/22 中午 12:07 WA03: CIVL2611 CIVL9611 Introductory Fluid Mechanics https://canvas.sydney.edu.au/courses/44202/quizzes/195793 5/5 Quiz Score: 100 out of 100