Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 4, Problem 4.7PP
The egress hatch of a manned spacecraft is designed so that the internal pressure in the cabin applies a force to help maintain the seal. If the internal pressure is
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A hydraulic press is used to raise an 80 kN cargo truck. If oil of specific gravity 0.82 acts on the piston under pressure of 10Mpa. What is the diameter of piston required?
QV: a hydraulic press is used to compact powdered samples. The device is made of two interconnected cylindrical chambers filled with oil if density psubscripto anc closed by two pistons. The small chamber on the right has diameter d and the large chamber on the left has diameter 5d. A lever is attached to the piston pushing down on the fluid in the small cylinder. The horizontal lever is hinged on the left, at distance L from the small piston, and a force of magnitude Fsubscript0 is applied vertically down at distance 2L from the hinge (Fig.5). You may assume that the lever and pistons have negligible mass.
a. Determine the magnitude of the force Fin that the small piston exerts on the fluid in the small cylinder. Hint: you may consider that the lever is at rest in the horizontal position.
b. Determine the pressure change applied to the fluid by the small piston.
c. Determine the magnitude Fout of the force that the fluid applies to the large piston.
Calculate the Force on a piston when the Pressure applied P= 50 psi and the area of the piston is 20 in.2
Chapter 4 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 4 - figure 4.2 shows a vacuum tank with a flat...Ch. 4 - The flat left end of the tank shown in Fig. 4.21...Ch. 4 - An exhaust system for a room creates a partial...Ch. 4 - A piece of 14 -in Schedule 40 pipe is used as a...Ch. 4 - A pressure relief valve is designed so that the...Ch. 4 - A gas-powered cannon shoots projectiles by...Ch. 4 - The egress hatch of a manned spacecraft is...Ch. 4 - A tank containing liquid ammonia at 77F has a flat...Ch. 4 - The bottom of a laboratory vat has a hole in it to...Ch. 4 - A simple shower for remote locations is designed...
Ch. 4 - Calculate the total force on the bottom of the...Ch. 4 - If the length of the tank in Fig. 4.24 is 1.2m,...Ch. 4 - An observation port in a small submarine is...Ch. 4 - A rectangular gate is installed in a vertical wall...Ch. 4 - '4.15 A vat has a sloped side, as shown in Fig....Ch. 4 - The wall shown in Fig. 4.28 is 20 ft long, (a)...Ch. 4 - If the wall in Fig. 4.29 is 4m long, calculate the...Ch. 4 - Refer to Fig. 4.30Ch. 4 - Refer to Fig. 4.31Ch. 4 - Refer to Fig.4.32Ch. 4 - Refer to Fig 4.33Ch. 4 - Refer to Fig. 4.34Ch. 4 - Refer to Fig. 4.35 (?Ch. 4 - Swimming poo!WilierGlasswindow2 ft diameterFigure...Ch. 4 - 4.25 Refer to Fig 4.37Ch. 4 - Refer to Fig.4.38Ch. 4 - Refer to Fig.4.39Ch. 4 - Refer to Fig.4.40Ch. 4 - Refer to Fig 4.41Ch. 4 - figure 4.42i5 shows a gasoline tank filled into...Ch. 4 - If the tank in Fig. 4.42 is filled just to the...Ch. 4 - If the tank in Fig. 4.42 is only half full of...Ch. 4 - For the water tank shown in Fig. 4.43, compute the...Ch. 4 - For the water tank shown in Fig. 4.43, compute the...Ch. 4 - For the water tank shown in Fig. 4.43, compute the...Ch. 4 - For the orange-drink tank shown in Fig. 4.32,...Ch. 4 - For the orange-drink tank shown in Fig. 4.32,...Ch. 4 - For the oil tank shown in Fig. 4.35, compute the...Ch. 4 - For the oil tank shown in Fig. 4.35; compute the...Ch. 4 - figure 4.44 shows a rectangular gate holding water...Ch. 4 - figure 4.45 shows a gate hinged at its bottom and...Ch. 4 - figure 4.46 shows a tank of water with a circular...Ch. 4 - Repeat Problem 4.19(Fig. 4.31), except that the...Ch. 4 - Repeat Problem 4.22 (Fig. 4.32), except that the...Ch. 4 - Repeat Problem 4.26 (Fig. 4.38 ). except that the...Ch. 4 - Repeat Problem 4.28 (Fig. 4.40 ), except that the...Ch. 4 - Use Fig 4.47. The surface is 2.00m long.Ch. 4 - Use Fig.4.48. The surface is 2.50m long.Ch. 4 - Use Fig.4.49. The surface is 5.00 ft longCh. 4 - Use Fig.4.50. The surface is 4.50 ft long.Ch. 4 - Use Fig.4.51.The surface is 4.00 m long.Ch. 4 - Use Fig .4.52. The surface is 1.50m longCh. 4 - Use Fig. 4.53. The surface is 1.50m long.Ch. 4 - Use Fig. 4.54. The surface is 60 in longCh. 4 - Repeat Problem 4.47 using Fig. 4.47, except that...Ch. 4 - Repeat Problem 4.48 using Fig. 4.48, except that...Ch. 4 - The tank in Fig. 4.55 has a view port in the...Ch. 4 - Insulated concrete forms (ICFs) are becoming more...Ch. 4 - Lacks are installed in rivers to allow boats to...Ch. 4 - When a dam is installed in a river that has...Ch. 4 - A wealthy eccentric is interested in having an...Ch. 4 - A pneumatic cylinder like the one shown in Fig....Ch. 4 - Determine the magnitude and the location of the...Ch. 4 - For the hinged gate shown in Fig. 4.61, determine...Ch. 4 - Prob. 4.65PPCh. 4 - Write a program to solve Problem 4.41 with any...Ch. 4 - Write a program to solve Problem 4.42 (Fig. 4.46)...Ch. 4 - Write a program to solve curved surface problems...Ch. 4 - For Program 1, cause the depth h to vary over some...
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- Figure Q2 shows two tanks which contain the solvent used for plastic manufacturing. Tank A contains the cyclohexanol and Tank B contains the ethyl lactate. Calculate the pressure on the top of tank A, if the mercury in the manometer is at the level as shown, where h = 0.75 m. Take the specific gravities of cyclohexanol, mercury, and ethyl lactate as, Seyclo = 0.953, Smercury = 13.55 and Sethyl = 1.03. B h= 4.5 m =1.5m hHsF 0.75m -mercury FQ2: Schematic of two tanks A and B containing the plastic solventarrow_forwardCorrect and complete solutionarrow_forwardI have a bolt that has a cross-sectional area of .75 sq. in., I pull on the bolt with a force of 1275# ; what is the pressure on this bolt?arrow_forward
- A combine 9.3’ of water, 6.5’ of oil (SG = 0.71), and 5.0’ of air at 26 psig and 70 deg F. What is the absolute pressure at the bottom of the container?arrow_forwardA hydraulic press is used to raise an 80 - kN cargo truck. If oil of sp. gr. 0.82 acts on the piston under a pressure of 10 MPa, what diameter of piston is required?arrow_forwardDO NOT ANSWER IF YOU ALREADY ANSWERED THIS. I'LL DOWNVOTE YOU IF I SEE THE SAME ANSWER. MAKE SURE IT IS UNIQUE.arrow_forward
- Topic: Fluid Statics and its Applicationsarrow_forwardCan you answer the question please?arrow_forwardQI: In Figure below find the resultant pressure force and the depth of the centre of pressure on the cylinder gate of diameter 4 ft which has a circular hole of 0.9 ft diameter located above the centre of the main gate by I ft. 1.2 Oil, S-0.8 D-0.9arrow_forward
- Calculate the internal pressure of the drop.arrow_forwardFormula to be used: Where: Please take note! Calculating Pressure in a Static Fluid or P = pgh or P = yh p is the fluid's density (kg/m³ or lbm/ft³) g is the acceleration due to gravity y is the specific weight of the fluid (N/m³ or lbf/ft³) W is the weight of the fluid (N or lbf) A is the area of the bottom of the vessel containing the liquid (m² or ft²) h is the depth/height of the fluid (m or ft) P = P = 1248 h that will be used for the formula may be different from the given height of liquid in a problem. Refer to the sample problem below for clarification on this matter. Sample Problem For the dam shown on the right, find the pressure at point 20 feet below the surface of the water. Solution: Here, we will not use h = 40 ft since we are asked to compute the pressure at point 20 feet below the surface of the water. So, here is the appropriate approach to this problem. P = yh The specific weight of water is 62.4 lbf/ft³. lbf P = (62.4 ft3) (20 ft) lbf ft² 40 ft 20 ftarrow_forwardFor the configuration shown in Figure 5, calculate the weight of the piston if the gauge pressure reading is 70 kPa. 6=1.om ston/ Piston 1.0m Oic (Sp. graisty Figure 5arrow_forward
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