Fluids ( Fundamentals of EEP)

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Grace Balahay

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Fluids ( Fundamentals of EEP)


Fluids ( Fundamentals of EEP)Version en ligne exam prob par Grace Balahay 1 A gage attached to a pressurized nitrogen tank reads a gage pressure of 28 inches of mercury. If atmospheric pressure is 14.4 psia, what is the absolute pressure in the tank? a 95 kPa b 99 kPa c 101 kPa d 194 kPa e 203 kPa 2 On a sea-level standard day, a pressure gage, moored below the surface of the ocean (SG = 1.025), reads an absolute pressure of 1.4 MPa. How deep is the instrument? a 4 m b 129 m c 133 m d 140 m e 2080 m 3 In Fig. FE-2.3, if the oil in region B has SG = 0.8 and the absolute pressure at point A is 1 atmosphere, what is the absolute pressure at point B? a 5.6 kPa b 10.9 kPa c 106.9 kPa d 112.2 kPa 4 In Fig. FE-2.3, if the oil in region B has SG = 0.8 and the absolute pressure at point B is 14 psia, what is the absolute pressure at point B? a 11 kPa b 11 kPa c 86 kPa d 91 kPa 5 A tank of water (SG = 1.0) has a gate in its vertical wall 5 m high and 3 m wide. The top edge of the gate is 2 m below the surface. What is the hydrostatic force on the gate? a 147 kN b 367 kN c 490 kN d 661 kN 6 In Prob. FE-2.5 above, how far below the surface is the center of pressure of the hydrostatic force? a 4.50 m b 5.46 m c 6.35 m d 5.33 m e 4.96 m 7 A solid 1-m-diameter sphere floats at the interface between water (SG = 1.0) and mercury (SG = 13.56) such that 40% is in the water. What is the specific gravity of the sphere? a 6.02 b 7.28 c 7.28 d 8.54 8 A 5-m-diameter balloon contains helium at 125 kPa absolute and 15°C, moored in sea-level standard air. If the gas constant of helium is 2077 m2/(s2·K) and balloon material weight is neglected, what is the net lifting force of the balloon? a 67 N b 134 N c 522 N d 653 N 9 A square wooden (SG = 0.6) rod, 5 cm by 5 cm by 10 m long, floats vertically in water at 20°C when 6 kg of steel (SG = 7.84) are attached to the lower end. How high above the water surface does the wooden end of the rod protrude? a 0.6 m b 1.6 m c 1.9 m d 2.4 m 10 A floating body will always be stable when its a CG is above the center of buoyancy b center of buoyancy is below the waterline c center of buoyancy is above its metacenter d metacenter is above the center of buoyancy e metacenter is above the center of buoyancy

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Fluids ( Fundamentals of EEP)

Test

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Fluids ( Fundamentals of EEP)Version en ligne

par Grace Balahay

A gage attached to a pressurized nitrogen tank reads a gage pressure of 28 inches of mercury. If atmospheric pressure is 14.4 psia, what is the absolute pressure in the tank?

On a sea-level standard day, a pressure gage, moored below the surface of the ocean (SG = 1.025), reads an absolute pressure of 1.4 MPa. How deep is the instrument?

In Fig. FE-2.3, if the oil in region B has SG = 0.8 and the absolute pressure at point A is 1 atmosphere, what is the absolute pressure at point B?

In Fig. FE-2.3, if the oil in region B has SG = 0.8 and the absolute pressure at point B is 14 psia, what is the absolute pressure at point B?

A tank of water (SG = 1.0) has a gate in its vertical wall 5 m high and 3 m wide. The top edge of the gate is 2 m below the surface. What is the hydrostatic force on the gate?

In Prob. FE-2.5 above, how far below the surface is the center of pressure of the hydrostatic force?

A solid 1-m-diameter sphere floats at the interface between water (SG = 1.0) and mercury (SG = 13.56) such that 40% is in the water. What is the specific gravity of the sphere?

A 5-m-diameter balloon contains helium at 125 kPa absolute and 15°C, moored in sea-level standard air. If the gas constant of helium is 2077 m2/(s2·K) and balloon material weight is neglected, what is the net lifting force of the balloon?

A square wooden (SG = 0.6) rod, 5 cm by 5 cm by 10 m long, floats vertically in water at 20°C when 6 kg of steel (SG = 7.84) are attached to the lower end. How high above the water surface does the wooden end of the rod protrude?

A floating body will always be stable when its