1. The pressure in an automobile tire depends on the temperature of the air in the tire. When theair temperature is at 545.67 Rankine, the pressure gauge reads 245 kPa. If the volume of thetire is 0.025 m', determine the pressure rise (in lbf/in units) in the tire when the airtemperature in the tire rises to 70 °C. Also determine the amount of air that must be bled offto restore pressure to its original value at this temperature. Assume the atmospheric pressureto be 101.325 kPa.

Answered: Image /qna-images/answer/6960d433-31ba-403d-b339-f07ebdba6a6f.jpg

Answered: 1. The pressure in an automobile tire…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A liquid which is compressed in a cylinder has a volume of 1 liter at 2Mpa, and a volume of 990 cu.cm at 2.5 Mpa. Determine the coefficient of compressibility Choices are: A. 0.14 B. 0.04 C. 1/50 D. 0.22
A closed tank whose bottom is 18 inches in diameter is filled with three liquids: 4 inches of carbon tetrachloride (SG=1.59), 2 inches of water and 12 inches of syrup (SG=1.31). The air chamber in the tank is pressurized at 1296 psf. a. Determine the pressure at the interface of carbon tetrachloride and syrup. b. Determine the difference in pressure between the interface of water and syrup and the interface of carbon tetrachloride and syrup. c. Compute the hydrostatic pressure (in psf) acting at the bottom of the tank. d. Apply the PANEL EQUATIONS to determine the magnitude, direction and location of the total hydrostatic force acting at the bottom of the tank.
3–9E The pressure at the exit of an air compressor is 150 psia. What is this pressure in kPa?
An increase in pressure of a liquid from 7.5 MPa to 15 MPa results into 0.2 percent decrease in its volume. Determine the coefficient of compressibility of the liquid.
A closed tank contains 0.5m of mercury, 2m of water and 3m of oil of density 600 kg/m3 and there is an air space above the oil. If the gage pressure at the bottom of the tank is 200 kPa, what is the pressure of the air at the top of the tank? Air Oil Water Mercury
1. A mercury barometer at the base of the mountain reads 620 mm. At the same time, another barometer at the top of the mountain reads 450mm. Assuming w of air is to be constant at 10 N/m', what is the appropriate height of the mountain? 2. The pressure on a closed tank reads 58.86 kPa. (a) What is the equivalent height in water? (b) What is the equivalent height in terms of oil having sg = 0.85? (c) What is the equivalent height in terms of mercury having sg = 13.6? 3. The pressure in a gas tank is 2.75 atm. Compute the pressure head in meters of water. 4. The unit weight of a liquid is variable and is given by the relation y = 10 + 0.5h. Determine the gauge pressure in kPa at a depth of 5m.
[An. 23. The surface tension of water in contact with air is given as 0.0725 N/m. The pressure outside the droplet of . Calculate the pressure within the droplet of atmosphere. 22. Find the surface tension in a sosp bubble of 30 mm diameter when the inside pressure is 1.962 N/m above (Ans. 0.00735 N/m) water of diameter 0.02 mm is atmospheric 10.32,. cm water. [Ans. 11.77 N/em]
H.W2/3.4/Page(91)/ The local atmospheric pressure is 91 kPa. A gauge on an oxygen tank reads a pressure of 250 kPa gauge. What is the pressure in the tank in kPa abs?
5. Airat standard conditions enters the compressor shown below through a 2.4-in diameter pipe at 10 cfs. It leaves the tank through a 1.2-in diameter pipe at a velocity of 700 fps and has an increased density. Determine the average time rate of change of air density within the tank. 2.4 in 10 cfs 1.2 in 700 fps 0.00350 slugs/ft Tank Volume = 50 ft 0.00238 slugs/ft
4 PLEASE PROVIDE COMPLETE SOLUTION DETERMINE THE ABSOLUTE PRESSURE OF A IF THE AIR PRESSURE IS 2KG/CM3
6. A liquid having a Reynolds number 1900 flows through a 200 mm diameter pipe, 150 m long. The head loss of the pipe due to friction is 22 m. Ź a. Compute the friction factor b. Compute the kinematic viscosity of the liquid in sqm/sec. ( c. Compute the rate of flow in liters per hour
A cylinder glass tubing 2.8 cm. inside diameter and 90 cm long with one end closed is immersed vertically with the open end down into a tank of cleaning solvent (sp.gr. = 0.73) until only 5 cm. of its length remain above the liquid surface. If the barometric pressure is 1 kg/cm2 and neglecting vapor pressure, compute the height of air inside the glass. Do not write the unit. You will only input the numerical answer in the space provided. Unit of the Correct Answer: cm Decimal Places required in the final answer: 2

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