A vessel gage reads 350 mm Hg vacuum. Find the inside absolute pressure if the ambient pressure is 0.85 bar. Select the correct response: O 132.79 kPa O 39.47 kPa O 101.325 kPa O O kPa
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- 1. Pressure transducers are commonly used to meas Multimeter signals usually in the range of 4 mA to 20 mA or 0 V-dc to 10 V-dc in response to applied pressure. The system whose schematic is shown in Fig. 1 can be used to calibrate pressure transducers. A rigid container is filled with pressurized air, and pressure is measured by the manometer attached. A valve is used to D regulate the pressure in the container. Both the pressure and the electric signal are measured Pressure transducer Valve Pressurized air, P simultaneously for various settings, and the results are tabulated in Table 1. Rigid container i. For the given set of measurements, -Manometer obtain the calibration curve in the form of P = al + b, where a and b are Mercury SG= 13.56 constants Figure I ii. Determine the values of the constants a and b III. calculate the pressure that corresponds to a signal of 10 mA and 20 mA.A new thermometer is invented where the temperature scale is in degree G (°G). The boiling point of water is 900°G and the freezing point of water is 120°G. Derive an equation for conversion from °G to °C.used to express the difference between the pressure recorded and the local atmospheric pressure. Select the correct response(s): Gauge Pressure Absolute Pressure Zero Absolute Pressure Relative Pressure Zero Absolute Pressure
- Suppose a force of 500 N is required to fully open a diaphragm having circumference of 30 cm. Determine the required gauge pressure setting for this condition. А. * 80K Pa В. ~ 90K Pa C. * 75K Pa D. " 70K Pa23 ft^3 of air was drawn from a ventilation duct and measured by means of a dry gas meter. the meter's temperature averaged 60 F and the meter gage pressure was -1.9" H2O. Barometric pressure during the sampling was 752 mm Hg. Calculate the volume in standard cubic feet and in standard cubic meter (25C, atm)Measurement & metrology thermometer reads 97.2 C and the static correction given in the correction cu is-0.06 °C. Determine the true value of the temperature.
- The figure shows a sensor indicating a gauge pressure reading of 1.5 kPa. The fluids are at 20°C Determine: a) the height hb. b) the height hc.The specific weight of air is 12.0 N/m3.used to refer to the difference in pressure levels between two (unknown) pressure levels. Select the correct response(s): O Atmospheric Pressure O Differential Pressure Zero Absolute Pressure O Absolute Pressure Relative Pressure O Gauge PressureThe pressure in automobile tire depends on the temperature of the air in the tire. When the air temperature is 30°C, the pressure gage reads 250KP.. The volume of the tire is 0.030 m'and the atmospheric pressure is 100KP.. The gas constant of the air is 0.287 KPa.m2/Kg.K. The gage pressure in the tire when the air temperature rises to 60 °C is Select one: O a. 2209 KPa Ob.285.25 KPa Oc305.8 KPa Od 274.75 KPa
- 1. Pressure transducers are commonly used to measure pressure by generating analogue signals usually in the range of 4 mA to 20 mA or 0 V-dc to 10 V-dc in response to applied pressure. The system whose schematic is shown in Fig. 1 can be used to calibrate pressure transducers. A rigid container is filled with pressurized air, and pressure is measured by the manometer attached. A valve is used to regulate the pressure in the container. Both the pressure and the electric signal are measured simultaneously for various settings, and the results are tabulated in Table 1. i. For the given set of measurements, obtain the calibration curve in the form of P = aI + b, where a and b are constantsii. Determine the values of the constants aand biii. calculate the pressure that corresponds to a signal of 10 mA and 20 mA.Table 1 ∆h,mm 28.0 181.5 297.8 413.1 765.9 1027 1149 1362 1458 1536 I,mA 4.21 5.78 6.97 8.15 11.76 14.43 15.68 17.86 18.84 19.64A new thermometer is invented where the temperature scale is in degree M (°M). The boiling point of water is 750°M and the freezing point of water is 115°M. Derive an equation for conversion from °M to °F (Fahrenheit).What should be the surface tension of a liquid if its density, which is 1.44 g/cc, is the same as that of the calibrating liquid? The displacements of the liquid and the calibrating liquid inside the capillary tube are both 0.5 cm. The surface tension of the calibrating liquid is 29.4509 dynes/cm.