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applied fluid mechanics

Questions and Answers of Applied Fluid Mechanics

For the tank in Fig. 3.22, compute the depth of the water if the depth of the oil is 6.90 m and the gage at the bottom of the tank reads 125.3 kPa(gage). Vent Oil (sg = 0.86) h2 Water
For the tank in Fig. 3.22, compute the depth of the oil if the depth of the water is 2.80 m and the gage at the bottom of the tank reads 52.3 kPa(gage). Vent Oil (sg = 0.86) h2 Water
For the tank shown in Fig. 3.21, determine the depth of the oil h if the reading of the bottom pressure gage is 35.5 psig, the top of the tank is sealed, and the top gage reads 30.0 psig. Air Oil (sg
For the tank shown in Fig. 3.21, determine the reading of the bottom pressure gage in psig if the top of the tank is sealed, the top gage reads -10.8 psig, and the depth of the oil h is 6.25 ft. Air
For the tank shown in Fig. 3.21, determine the reading of the bottom pressure gage in psig if the top of the tank is sealed, the top gage reads 50.0 psig, and the depth of the oil h is 28.50 ft. Air
For the tank shown in Fig. 3.21, 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 28.50 ft. Air Oil (sg =
An airplane is flying at 10.6 km altitude. In its nonpressurized cargo bay is a container of mercury 325 mm deep.The container is vented to the local atmosphere. What is the absolute pressure at the
Figure 3.20 shows a clothes washing machine. The pump draws fluid from the tub and delivers it to the disposal sink. Compute the pressure at the inlet to the pump when the water is static (no flow).
Figure 3.19 shows a diagram of the hydraulic system for a vehicle lift. An air compressor maintains pressure above the oil in the reservoir. What must the air pressure be if the pressure at point A
For the tank of ethylene glycol described in Problem 3.39, compute the pressure at a depth of 12.0 m.Problem 3.39An open tank contains ethylene glycol at 25°C. Compute the pressure at a depth of 3.0
An open tank contains ethylene glycol at 25°C. Compute the pressure at a depth of 3.0 m.
A water storage tank is on the roof of a factory building and the surface of the water is 50.0 ft above the floor of the factory. If a pipe connects the storage tank to the floor level and the pipe
When you dive to a depth of 12.50 ft in seawater, what is the pressure?
The pressure at the bottom of a tank of propyl alcohol at 25°C must be maintained at 52.75 kPa(gage). What depth of alcohol should be maintained?
The pressure in an unknown fluid at a depth of 4.0 ft is measured to be 1.820 psig. Compute the specific gravity of the fluid.
If milk has a specific gravity of 1.08, what is the pressure at the bottom of a milk can 550 mm deep?
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Require that you convert the given pressure from gage to absolute pressure or from absolute to gage pressure as indicated. The value of the atmospheric pressure is given.Given Pressure
Expressed as a gage pressure, what is the pressure at the surface of a glass of milk?
The peak of a certain mountain is 13 500 ft above sea level. What is the approximate atmospheric pressure?
If you were to ride in an open-cockpit airplane to an elevation of 4000 ft above sea level, what would the atmospheric pressure be if it conforms to the standard atmosphere?
The pressure in a certain tank is −150 kPa(gage).Are (or can be) true or false. For those that are false, explain why.
The pressure in a certain tank is -4.65 psig.Are (or can be) true or false. For those that are false, explain why.
The pressure in a certain tank is −55.8 Pa(abs).Are (or can be) true or false. For those that are false, explain why.
As long as you stay on the surface of Earth, the atmospheric pressure will be 14.7 psia.Are (or can be) true or false. For those that are false, explain why.
The value for the absolute pressure will always be greater than that for the gage pressure.Are (or can be) true or false. For those that are false, explain why.
Write the expression relating gage pressure, absolute pressure, and atmospheric pressure.
Define atmospheric pressure.
Define gage pressure.
Define absolute pressure.
Write the expression for computing the pressure in a fluid.
Determine the flow rate, in m3/hr, for another pump that has a displacement of 2.2 L/revolution is run at 80 revolutions/min (rpm).A piston/cylinder arrangement like the one shown in Fig. 1.7 is used
Carbon dioxide has a density of 1.964 kg/m3 at 0°C. Calculate its specific weight.
A certain medium lubricating oil has a specific weight of 8.860 kN/m3 at 5°C and 8.483 kN/m3 at 50°C. Calculate its specific gravity at each temperature.
At 100C mercury has a specific weight of 130.4 kN/m3. What volume of the mercury would weigh 2.25 kN?
A storage vessel for gasoline (sg = 0.68) is a vertical cylinder 10 m in diameter. If it is filled to a depth of 6.75 m, calculate the weight and mass of the gasoline.
Air at 59F and standard atmospheric pressure has a specific weight of 0.0765 lb/ft3. Calculate its density.
Carbon dioxide has a density of 0.003 81 slug/ft3 at 32°F. Calculate its specific weight.
One gallon of a certain fuel oil weighs 7.50 lb. Calculate its specific weight, its density, and its specific gravity.
Glycerin has a specific gravity of 1.258. How much would 50 gal of glycerin weigh?
The fuel tank of an automobile holds 25.0 gal. If it is full of gasoline having a density of 1.32 slugs/ft3, calculate the weight of the gasoline.
Liquid ammonia has a specific gravity of 0.826. Calculate the volume in cm3 that would weigh 5.0 lb.
A rock has a specific gravity of 2.32 and a volume of 8.64 in3. How much does it weigh?
A village of 75 people desires a tank to store a 3-day supply of water. If the average daily usage per person is 1.7 gal, determine the required size of the tank in cubic feet.
A cylindrical tank has a diameter of 38 in with its axis vertical. Determine the depth of fluid in the tank when it is holding 85 gal of fluid.
What is the required rate, in N/min, to empty a tank containing 80 N of fluid in 5 s?
An empty tank measuring 1.5 m by 2.5 m on the bottom is filled at a rate of 60 L/min. Determine the time required for the fluid to reach a depth of 25 cm.
A tank that is 2 ft in diameter and 18 in tall is to be filled with a fluid in 90 s. Determine the required fill rate in gal/min.
A standard pump design can be upgraded to higher efficiency for an additional capital investment of $17,000. What is the period for payback if the upgrade saves 7500 $/year?
What is the annual cost to run a 2 HP system if it is to run continuously and the cost for energy is 0.10 $/kW-hr?
Determine the displacement, in liters, for one revolution of a pump with a 75-mm diameter piston and 100 mm-stroke.A piston/cylinder arrangement like the one shown in Fig. 1.7 is used to pump liquid.
At what speed, in rpm, does a single cylinder pump with a 1.0-in diameter piston and a 2.5-in stroke need to be run to provide 20 gal/min of flow?A piston/cylinder arrangement like the one shown in
State the standard units for dynamic viscosity in the SI system.
If you were asked to check the viscosity of an oil that is described as SAE 40, at what temperatures would you make the measurements?
Using the data from Table 2.5, report the minimum, nominal, and maximum values for viscosity for ISO grades VG 10, VG 65, VG 220, and VG 1000. Kinematic Viscosity at 40°C (cSt) or (mm2/s) Grade ISO
Air at 16°C and standard atmospheric pressure has a specific weight of 12.02 N/m3. Calculate its density.
Calculate the weight of 1 gal of water if it has a mass of 0.258 slug.
Calculate the weight of 1 ft3 of kerosene if it has a mass of 1.58 slugs.
Calculate the mass of 1 ft3 of gasoline if it weighs 42.0 lb.
Calculate the mass of 1 gal of oil if it weighs 7.8 lb.
Calculate the weight of a jar of castor oil if it has a mass of 450 g.
Calculate the mass of a tank of gasoline if it weighs 1.35 kN.
Calculate the mass of a can of oil if it weighs 610 N.
Repeat Problem 1.63 but change the cylinder diameter to 2.00 in. Compare the results.Repeat ProblemA measure of the stiffness of a linear actuator system is the amount of force required to cause a
Repeat Problem 1.63 but change the length of the cylinder to 10.0 in. Compare the results.Repeat ProblemA measure of the stiffness of a linear actuator system is the amount of force required to cause
A certain hydraulic system operates at 20.0 MPa. Compute the percentage change in the volume of the oil in the system if the oil is similar to the machine oil listed in Table 1.4. Temperature Surface
A certain hydraulic system operates at 3000 psi. Compute the percentage change in the volume of the oil in the system as the pressure is increased from zero to 3000 psi if the oil is similar to the
A line of fluid power cylinders has a range of diameters in 1.00-in increments from 1.00 to 8.00 in. Compute the pressure required by each cylinder if it must exert a force of 5000 lb. Draw a graph
A line of fluid power cylinders has a range of diameters in 1.00-in increments from 1.00 to 8.00 in. Compute the force that could be exerted by each cylinder with a fluid pressure of 500 psi. Draw a
The maximum pressure that can be developed for a certain fluid power cylinder is 15.0 MPa. Compute the required diameter for the piston if the cylinder must exert a force of 30 kN.
The maximum pressure that can be developed for a certain fluid power cylinder is 5000 psi. Compute the required diameter for the piston if the cylinder must exert a force of 20 000 lb.
The maximum pressure that can be developed for a certain fluid power cylinder is 20.5 MPa. Compute the force it can exert if its piston diameter is 50 mm.
A coining press is used to produce commemorative coins with the likenesses of all the U.S. presidents. The coining process requires a force of 18000 lb. The hydraulic cylinder has a diameter of 2.50
The hydraulic lift for an automobile service garage has a cylinder with a diameter of 8.0 in. What pressure must the oil have to be able to lift 6000 lb?
A hydraulic cylinder must be able to exert a force of 38.8 kN. The piston diameter is 40 mm. Compute the required pressure in the oil.
Compute the pressure produced in the oil in a closed cylinder by a piston exerting a force of 12.0 kN on the enclosed oil. The piston has a diameter of 75 mm.
A pitcher has allowed 49 earned runs during 123 innings. Calculate the ERA.One measure of a baseball pitcher’s performance is earned run average or ERA. It is the average number of earned runs
A pitcher has an ERA of 2.79 runs/game and has allowed 40 earned runs. How many innings have been pitched?One measure of a baseball pitcher’s performance is earned run average or ERA. It is the
A pitcher has an ERA of 3.12 runs/game and has pitched 150 innings. How many earned runs has the pitcher allowed?One measure of a baseball pitcher’s performance is earned run average or ERA. It is
If a pitcher has allowed 39 runs during 141 innings, calculate the ERA.One measure of a baseball pitcher’s performance is earned run average or ERA. It is the average number of earned runs allowed
Calculate the velocity in ft/s of a 6-oz body if it has a kinetic energy of 30 in-oz.The formula for kinetic energy is KE = ½ mv2, where m = mass and v = velocity.
Calculate the velocity in ft/s of a 30-lb object if it has a kinetic energy of 10 ft-lb.The formula for kinetic energy is KE = ½ mv2, where m = mass and v = velocity.

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