CHME 1150 Assignment 2

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Northern Alberta Institute of Technology *

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1150

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Mechanical Engineering

Date

Feb 20, 2024

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pdf

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6

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Dashboard / My courses / CHME1150.1221.A01.REG.A02.REG.X01.REG.X02.REG.X03.REG / Online Assignments / Assignment 2, Chapter 3 (Pressure Measurement) Question 1 Correct Mark 4.00 out of 4.00 Started on Tuesday, 27 September 2022, 12:03 PM State Finished Completed on Tuesday, 27 September 2022, 9:42 PM Time taken 9 hours 39 mins Grade 28.00 out of 28.00 ( 100 %) Feedback 70678322: A02Q11 3.15 Absolute pressure to gage pressure Category: Assignment 02 Express 267.2 kPa(abs) as gage pressure, if the atmospheric pressure is 99.4 kPa(abs). (provide your answer ( numerical value and units ) in kPa(gage) with a precision of one decimal) Answer: 167.8 kPa The correct answer is: 167.8 kPa(gage)
Question 2 Correct Mark 4.00 out of 4.00 Question 3 Correct Mark 4.00 out of 4.00 70678324: A02Q12 3.33 Gage pressure to absolute pressure Category: Assignment 02 70678325: A02Q13 3.36 Pressure at the bottom of a tank Category: Assignment 02 Express -13.4 psig as absolute pressure, if the atmospheric pressure is 14.1 psia. (provide your answer ( numerical value and units ) in psia with a precision of one decimal) Answer: 0.7 psia The correct answer is: 0.7 psia The pressure at the bottom of a tank of propyl alcohol at 25°C must be maintained at 56.34 kPa(gage). What depth of alcohol should be maintained? (provide your answer ( numerical value and units ) in m with a precision of two decimals) Answer: 7.16 m The correct answer is: 7.16 m
Question 4 Correct Mark 4.00 out of 4.00 Question 5 Correct Mark 4.00 out of 4.00 70678330: A02Q14 3.37 Diving pressure in seawater Category: Assignment 02 70678326: A02Q15 3.38 Pressure of a vertical pipe full of water Category: Assignment 02 When you dive to a depth of 18.36 ft in seawater, what is the pressure? (provide your answer ( numerical value and units ) in psig with a precision of two decimals) Answer: 8.16 psig The correct answer is: 8.16 psig A water storage tank is on the roof of a factory building and the surface of the water is 53.5 ft above the floor of the factory. If a pipe connects the storage tank to the floor level and the pipe is full of static water, what is the pressure in the pipe at floor level if the temperature of the water is 60ºF? (provide your answer ( numerical value and units ) in psig with a precision of two decimals) Answer: 23.18 psig The correct answer is: 23.18 psig
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Question 6 Correct Mark 4.00 out of 4.00 70678328: A02Q16 3.44 Bottom gage pressure in a tank Category: Assignment 02 For the tank shown in the figure below, determine the reading of the bottom pressure gage in psig if the top of the tank is vented to the atmosphere and the depth of the oil h is 26.70 ft. (provide your answer ( numerical value and units ) in psig with a precision of two decimals) Answer: 11.00 psig The correct answer is: 10.99 psig
Question 7 Correct Mark 4.00 out of 4.00 70678329: A02Q17 3.49 Depth of water in tank with oil layer at the top Category: Assignment 02 For the tank shown in the figure below, compute the depth of the water if the depth of the oil is 6.57 m and the gage at the bottom of the tank reads 116.5 kPa(gage). (provide your answer ( numerical value and units ) in m with a precision of two decimals) Answer: 6.23 m sg oil = 0.86 sg water = 1 sg s = γ s γ ref ( H 2 O , 4 C ) p bottom = Δ p water + Δ p oil Δ p oil = γ oil × h 1 Δ p water = γ water × h 2 h 2 = p bottom sg oil × γ ref ( H 2 O , 4 C ) × h 1 1 × γ ref ( H 2 O , 4 C ) = 116.5 kPa gage kN m 3 kPa − 0.86 × 9.81 kN m 3 × 6.57 m 1 × 9.81 kN m 3 = m The correct answer is: 6.23 m ( )
◄ Assignment 1, Chapter 1 (Nature of Fluids) Jump to... Assignment 3, Chapter 3 (Pressure Measurement) ►
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