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follow or read with reasonable effort. he atmospheric pressure is 101 kPa. ans/ Atmospheric pressure 12...
At sea level, water boils at 100 °C, and the absolute atmospheric pressure is 101 kPa....
At sea level, water boils at 100 °C, and the absolute atmospheric pressure is 101 kPa. As the atmospheric pressure above water decreases, the temperature required for boiling also decreases, at a rate of 3.1 kPa per "C. For the system shown below: a. What is the absolute atmospheric pressure at an elevation of 4100 m, assuming a constant unit weight of air of 11.80 N/m3? b. What will be the boiling temperature for water at this elevation? Elev. =...
Required information The local atmospheric pressure in Denver, Colorado (elevation 1610 m) is 83.4 kPa. Air...
Required information The local atmospheric pressure in Denver, Colorado (elevation 1610 m) is 83.4 kPa. Air at this pressure and at 25°C flows with a velocity of 12 m/s over a 2.5-mx 5-m flat plate. The dynamic viscosity is independent of pressure, and for air at 25°C, it is H- 1.849 10 kg/m s. The air density at 25°C 298 K and 83.4 kPa is 0.9751 kg/m3 Calculate the drag force acting on the top surface of the plate if...
8. In Fig. FE3.1 water exits from a nozzle at steady state into atmospheric pressure of...
8. In Fig. FE3.1 water exits from a nozzle at steady state into atmospheric pressure of 101 kPa. If the flow rate is 160 gal/min, what is the average velocity at section 1? 1 gal- 3.7% 103 me. (5 pts) 7 cm 4 cm jet (b) 0.81 m/s (c) 93 m/s (d) 23 m/s (a) 2.6 m/s (e) 1.62 m/s P 101 kPa Fig. FE3.1 9. A fireboat pump delivers water to a vertical nozzle with a 3:1 diameter ratio,...
Fluid Mechanics & Fluid Power Determine the NPSH available. The pressure in the tank is - 20 kPa at 70 °C (atmospheric pressure is 100.5 kPa). The water level in the tank is 2.5 above the pump in...
Fluid Mechanics & Fluid Power
Determine the NPSH available. The pressure in the tank is - 20 kPa at 70 °C (atmospheric pressure is 100.5 kPa). The water level in the tank is 2.5 above the pump inlet. The pipe is 1%", schedule 40 with a total length of 12 m. The elbow is standard, and the globe valve is fully open. The flow rate is 95 L/min. FIGURE 13.27 llustration of pump performance for different impeller diameters with net...
02. centrifugal pump draws benzene at 25°C (sp. weight of benzene 8.59 kN/m) om a tank whose level is 2.6 m below the pump inlet. The atmospheric pressure (abs). The head loss in the suction pipi...
02. centrifugal pump draws benzene at 25°C (sp. weight of benzene 8.59 kN/m) om a tank whose level is 2.6 m below the pump inlet. The atmospheric pressure (abs). The head loss in the suction piping due to friction and minor osses is 0.8 N.m /N. The vapor pressure of benzene is 13.3 kPa (abs). Determine he available net positive suction head (NPSH) and tell f it is acceptable or not. (10 points) Discharge ine Flew 2.6 m What is...
Irs.S0 L of gas at a gauge pressure of 720 kPa and a temperature at d...
Irs.S0 L of gas at a gauge pressure of 720 kPa and a temperature at d sa s00 kPa and the temperature is 250 "C, what is the final volume? pressure Assume the atmospheric pressure is 101 kPa. oscupies a volume of 25.0 L at 15 "C. At what temperature will the gas occupy a 7. A volume of 72.0 L at the same pressure? s tels of hydrogen combines completely with 8 g of oxygen to form water, (a)...
Q's d and e Lactose powder is being dried at atmospheric pressure at a rate of...
Q's d and e
Lactose powder is being dried at atmospheric pressure at a rate of 12.0 [kg/s in a continuous dryer. Lactose powder enters the dryer at 20 [C] and with 10% water content (by mass) and leaves at 35 (C) with 1% water. Air at 50.0*C(dry-bulb) and 22 [C] wet-bulb temperature is used for this drying process. The air exits the dryer saturated at 25 ["C). Assume that the specific heats of water and lactose powder are independent...
7. A solid sphere of copper ( 8940 kg/m') with a radius of 5.0 cm has...
7. A solid sphere of copper ( 8940 kg/m') with a radius of 5.0 cm has a mass of a) 45 9 kg b) 6.78 kg c) 25.7 kg d) 4.68 kg (10 pts) The pressure at the bottom of a 76-cm high column of mercury (p = 13,550 kg/m) is a) 0.010 kPa b) 101 kPa c) 10.1 kPa d) 0.101 kPa (10 pts) 9. Anaxial force of 20 kN acts on a 1.50-cm diameter rod. The axial stress...
4 pts)_1-ALGIVEN: Steam Tables and "Psych Chart" for atmospheric air at std. atm. pressure LET: DB...
4 pts)_1-ALGIVEN: Steam Tables and "Psych Chart" for atmospheric air at std. atm. pressure LET: DB dry bulb temperature DP dew point temperature CIRCLE THE BEST ANSWER a) A constant humidity ratio process will have approximately constant b) The relative humidity value can be determined given humidity ratio and DB DP c) The mol fraction of H:0 vapor in air at std. pressure can be found given just DB DP d) The mixture enthalpy value can be determined given humidity...
1. Using the concepts covered in earth pressure theories (not Taylor's chart), the critical depth of...
1. Using the concepts covered in earth pressure theories (not Taylor's chart), the critical depth of vertical cut in a saturated cohesive soil with c = 15.5kPa and y = 18 kN/m3 will be? a) 0.86 m c) 6.88 m b) 3.44 m d) 1.72 m condition: 2. The upstream and downstream slopes of an earth dam is critical for the a) reservoir partial pool c) steady seepage b) sudden drawdown d) earthquake 3. In the simplified Bishop's method of...
At sea level, water boils at 100 °C, and the absolute atmospheric pressure is 101 kPa. As the atmospheric pressure above water decreases, the temperature required for boiling also decreases, at a rate of 3.1 kPa per "C. For the system shown below: a. What is the absolute atmospheric pressure at an elevation of 4100 m, assuming a constant unit weight of air of 11.80 N/m3? b. What will be the boiling temperature for water at this elevation? Elev. =...
Required information The local atmospheric pressure in Denver, Colorado (elevation 1610 m) is 83.4 kPa. Air at this pressure and at 25°C flows with a velocity of 12 m/s over a 2.5-mx 5-m flat plate. The dynamic viscosity is independent of pressure, and for air at 25°C, it is H- 1.849 10 kg/m s. The air density at 25°C 298 K and 83.4 kPa is 0.9751 kg/m3 Calculate the drag force acting on the top surface of the plate if...
8. In Fig. FE3.1 water exits from a nozzle at steady state into atmospheric pressure of 101 kPa. If the flow rate is 160 gal/min, what is the average velocity at section 1? 1 gal- 3.7% 103 me. (5 pts) 7 cm 4 cm jet (b) 0.81 m/s (c) 93 m/s (d) 23 m/s (a) 2.6 m/s (e) 1.62 m/s P 101 kPa Fig. FE3.1 9. A fireboat pump delivers water to a vertical nozzle with a 3:1 diameter ratio,...
Fluid Mechanics & Fluid Power
Determine the NPSH available. The pressure in the tank is - 20 kPa at 70 °C (atmospheric pressure is 100.5 kPa). The water level in the tank is 2.5 above the pump inlet. The pipe is 1%", schedule 40 with a total length of 12 m. The elbow is standard, and the globe valve is fully open. The flow rate is 95 L/min. FIGURE 13.27 llustration of pump performance for different impeller diameters with net...
02. centrifugal pump draws benzene at 25°C (sp. weight of benzene 8.59 kN/m) om a tank whose level is 2.6 m below the pump inlet. The atmospheric pressure (abs). The head loss in the suction piping due to friction and minor osses is 0.8 N.m /N. The vapor pressure of benzene is 13.3 kPa (abs). Determine he available net positive suction head (NPSH) and tell f it is acceptable or not. (10 points) Discharge ine Flew 2.6 m What is...
Irs.S0 L of gas at a gauge pressure of 720 kPa and a temperature at d sa s00 kPa and the temperature is 250 "C, what is the final volume? pressure Assume the atmospheric pressure is 101 kPa. oscupies a volume of 25.0 L at 15 "C. At what temperature will the gas occupy a 7. A volume of 72.0 L at the same pressure? s tels of hydrogen combines completely with 8 g of oxygen to form water, (a)...
Q's d and e
Lactose powder is being dried at atmospheric pressure at a rate of 12.0 [kg/s in a continuous dryer. Lactose powder enters the dryer at 20 [C] and with 10% water content (by mass) and leaves at 35 (C) with 1% water. Air at 50.0*C(dry-bulb) and 22 [C] wet-bulb temperature is used for this drying process. The air exits the dryer saturated at 25 ["C). Assume that the specific heats of water and lactose powder are independent...
7. A solid sphere of copper ( 8940 kg/m') with a radius of 5.0 cm has a mass of a) 45 9 kg b) 6.78 kg c) 25.7 kg d) 4.68 kg (10 pts) The pressure at the bottom of a 76-cm high column of mercury (p = 13,550 kg/m) is a) 0.010 kPa b) 101 kPa c) 10.1 kPa d) 0.101 kPa (10 pts) 9. Anaxial force of 20 kN acts on a 1.50-cm diameter rod. The axial stress...
4 pts)_1-ALGIVEN: Steam Tables and "Psych Chart" for atmospheric air at std. atm. pressure LET: DB dry bulb temperature DP dew point temperature CIRCLE THE BEST ANSWER a) A constant humidity ratio process will have approximately constant b) The relative humidity value can be determined given humidity ratio and DB DP c) The mol fraction of H:0 vapor in air at std. pressure can be found given just DB DP d) The mixture enthalpy value can be determined given humidity...
1. Using the concepts covered in earth pressure theories (not Taylor's chart), the critical depth of vertical cut in a saturated cohesive soil with c = 15.5kPa and y = 18 kN/m3 will be? a) 0.86 m c) 6.88 m b) 3.44 m d) 1.72 m condition: 2. The upstream and downstream slopes of an earth dam is critical for the a) reservoir partial pool c) steady seepage b) sudden drawdown d) earthquake 3. In the simplified Bishop's method of...
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