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1-47 A vacuum gage connected to a chamber reads 35 kPa at a location where the...
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A vacuum gage connected to a chamber reads 5.8 psi at a location wherethe atmospheric pressure is 14.5 psi. Determine the absolute pressure in thechamber.
The vacuum pressure of a condenser is given to be 22 kPa. What is the gage...
The vacuum pressure of a condenser is given to be 22 kPa. What is the gage and absolute pressure in kPa? Local atmospheric pressure is 758 mmHg.
A vacuum gage reads 8 in. Hg when the atmospheric pressure 29.0 in. Hg. If the...
A vacuum gage reads 8 in. Hg when the atmospheric pressure 29.0 in. Hg. If the specific gravity of mercury is 13.6, compute the absolute pressure in psi.
Question 3. i. Define absolute pressure, gage pressure and vacuum pressure. ii. If a mercury barometer...
Question 3. i. Define absolute pressure, gage pressure and vacuum pressure. ii. If a mercury barometer reads 720 mm Hg. Determine the atmospheric pressure in kPa and psi. (I psi -6.895 kPa. Density of Hg - 13.56 g/cc). Question 4 i. Define/explain energy, kinetic energy, potential energy and internal energy ii. Explain the contribution/mechanism of internal energy with sketch.
A technician is testing vacuum pumps. The pumps are connected to a vacuum chamber with a...
A technician is testing vacuum pumps. The pumps are connected to a vacuum chamber with a volume of 1.40 m3, allowed to run for a set period of time, and the temperature and pressured measured. For a particular pump, the final chamber temperature and pressure are respectively measured to be 325 K and 5.00 × 10-10 Torr (where 1 Torr = 133 Pa). Determine the number of molecules in the chamber at the end of the pumping time. You may...
8. The figure shows a tank within a tank, each containing air. Pressure gage A, which...
8. The figure shows a tank within a tank, each containing air. Pressure gage A, which indicates pressure inside tank A, is located inside tank B and reads 5 psig (vacuum). The U-tube Pa 14.7 psia Tank B manometer connected to tank B contains water with a column length of 10 in. Using the data shown on the figure, determine the absolute pressure of the air inside tank B and inside tank A, both in psia. The atmospheric pressure surrounding...
Q3) An inclined manometer tube is connected to two closed tanks as shown in the figure...
Q3) An inclined manometer tube is connected to two closed tanks as shown in the figure below where !-210 cm. A gage was used to measure the pressure at the center of tank A and the reading was 60 kPa. A barometer locates near the tanks reads 72 cm of mercury. Specific weight of water is 9.81 kN/m3 and specific gravity (SG) of mercury is 13.6. a) Find the gage pressure in the center of tank B. b) Find the...
1)Thin film semiconductor materials for solar cells are made within a vacuum chamber which is pumped...
1)Thin film semiconductor materials for solar cells are made within a vacuum chamber which is pumped out in a process that removes as much of the air as possible (depending on the quality of the pump). Then high purity materials can be made that are free of contamination. In a typical pumping process, the pressure in the vacuum chamber is decreased to 1 x 10-7 Torr (1 Torr = 133.3 Pa) (See: en.wikipedia.org/wiki/Sputtering) Assume that the vacuum chamber and the...
The figure shows a cylindrical tank of 80 em in diameter which is fully filled with water. In order to increase the flow from the tank to the exit pipe on the left, an additional pressure is appl...
The figure shows a cylindrical tank of 80 em in diameter which is fully filled with water. In order to increase the flow from the tank to the exit pipe on the left, an additional pressure is applied to the water surface by an air compressor to supply air to the upper air chamber of the tank. The external walls of the tank are exposed to the atmospheric conditions of the area. You are required to determine the hydrostatic conditions...
1. (30%) in the Venturi pipe shown, gage A indicates a pressure of 130 KPA. The...
1. (30%) in the Venturi pipe shown, gage A indicates a pressure of 130 KPA. The diameter of the normal pipe is D -0.5 m and the discharge is Q-0.15 m/s. Assume atmospheric pressure 100 kPa, vapor pressure 2.34 kPa. and y- 9.81 kN/m Pipe Throat 1.1 The velocity head in the pipe at section A is: A) 0.044 m B) 0.815 m 1.2 The pressure head in the pipe at section A is: C) 0.030 m D) 0.0815 m...
Question 3. i. Define absolute pressure, gage pressure and vacuum pressure. ii. If a mercury barometer reads 720 mm Hg. Determine the atmospheric pressure in kPa and psi. (I psi -6.895 kPa. Density of Hg - 13.56 g/cc). Question 4 i. Define/explain energy, kinetic energy, potential energy and internal energy ii. Explain the contribution/mechanism of internal energy with sketch.
A technician is testing vacuum pumps. The pumps are connected to a vacuum chamber with a volume of 1.40 m3, allowed to run for a set period of time, and the temperature and pressured measured. For a particular pump, the final chamber temperature and pressure are respectively measured to be 325 K and 5.00 × 10-10 Torr (where 1 Torr = 133 Pa). Determine the number of molecules in the chamber at the end of the pumping time. You may...
8. The figure shows a tank within a tank, each containing air. Pressure gage A, which indicates pressure inside tank A, is located inside tank B and reads 5 psig (vacuum). The U-tube Pa 14.7 psia Tank B manometer connected to tank B contains water with a column length of 10 in. Using the data shown on the figure, determine the absolute pressure of the air inside tank B and inside tank A, both in psia. The atmospheric pressure surrounding...
Q3) An inclined manometer tube is connected to two closed tanks as shown in the figure below where !-210 cm. A gage was used to measure the pressure at the center of tank A and the reading was 60 kPa. A barometer locates near the tanks reads 72 cm of mercury. Specific weight of water is 9.81 kN/m3 and specific gravity (SG) of mercury is 13.6. a) Find the gage pressure in the center of tank B. b) Find the...
1)Thin film semiconductor materials for solar cells are made within a vacuum chamber which is pumped out in a process that removes as much of the air as possible (depending on the quality of the pump). Then high purity materials can be made that are free of contamination. In a typical pumping process, the pressure in the vacuum chamber is decreased to 1 x 10-7 Torr (1 Torr = 133.3 Pa) (See: en.wikipedia.org/wiki/Sputtering) Assume that the vacuum chamber and the...
The figure shows a cylindrical tank of 80 em in diameter which is fully filled with water. In order to increase the flow from the tank to the exit pipe on the left, an additional pressure is applied to the water surface by an air compressor to supply air to the upper air chamber of the tank. The external walls of the tank are exposed to the atmospheric conditions of the area. You are required to determine the hydrostatic conditions...
1. (30%) in the Venturi pipe shown, gage A indicates a pressure of 130 KPA. The diameter of the normal pipe is D -0.5 m and the discharge is Q-0.15 m/s. Assume atmospheric pressure 100 kPa, vapor pressure 2.34 kPa. and y- 9.81 kN/m Pipe Throat 1.1 The velocity head in the pipe at section A is: A) 0.044 m B) 0.815 m 1.2 The pressure head in the pipe at section A is: C) 0.030 m D) 0.0815 m...
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