1. At ground level the atmospheric pressure is 101.3 KPa at 15°C. Calculate the pressure at a point 6500m above the ground, assuming no density variation. 2. The gage at the suction side of a pump shows a vacuum of 25cm of mercury. Compute a. Pressure head in meter of water b. Pressure in KPa c. Absolute pressure in KPa if the barometer reads 755cm of mercury 3. A piece of timber 3m long and having a 30cm by 30cm section is placed in a body of water in a vertical position. If the timber weighs 6.5 KN/m what vertical force is required to hold it with its upper end flush with the water surface.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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1. At ground level the atmospheric pressure is 101.3 KPa at 15°C. Calculate the pressure at a point 6500m above the ground, assuming no density variation.
2. The gage at the suction side of a pump shows a vacuum of 25cm of mercury. Compute
a. Pressure head in meter of water
b. Pressure in KPa
c. Absolute pressure in KPa if the barometer reads 755cm of mercury
3. A piece of timber 3m long and having a 30cm by 30cm section is placed in a body of water in a vertical position. If the timber weighs 6.5 KN/m² what vertical force is required to hold
it with its upper end flush with the water surface.
4. A glass tube 1.6m long and having a diameter of 2.5cm is inserted vertically into a tank of oil (s.g. = 0.80) with the open end down and the closed end uppermost. If the open end is
submerged 1.30m from the oil surface, determine the height to which the oil will rise in the tube. Assume barometric pressure is 100 KPa and neglect vapor pressure.
Transcribed Image Text:1. At ground level the atmospheric pressure is 101.3 KPa at 15°C. Calculate the pressure at a point 6500m above the ground, assuming no density variation. 2. The gage at the suction side of a pump shows a vacuum of 25cm of mercury. Compute a. Pressure head in meter of water b. Pressure in KPa c. Absolute pressure in KPa if the barometer reads 755cm of mercury 3. A piece of timber 3m long and having a 30cm by 30cm section is placed in a body of water in a vertical position. If the timber weighs 6.5 KN/m² what vertical force is required to hold it with its upper end flush with the water surface. 4. A glass tube 1.6m long and having a diameter of 2.5cm is inserted vertically into a tank of oil (s.g. = 0.80) with the open end down and the closed end uppermost. If the open end is submerged 1.30m from the oil surface, determine the height to which the oil will rise in the tube. Assume barometric pressure is 100 KPa and neglect vapor pressure.
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