homework3_2

3. A Prandtl tube (Pitot-static tube with C=1) is used to measure the velocity of water. The differential manometer reading is 10 mm of liquid column with a relative density of 10. Assuming g = 9.8 m/s?, the velocity of water (in m/s) is

A "dead-weight" pressure testing machine as shown in Fig. Q5b is used to measure the accuracy of a Bourdon pressure gauge. If the weight and piston together weigh 200 N and the piston diameter is 2.5 cm, find the percentage error of the Bourdon pressure gauge if it indicates a pressure of 350 kPa. Piston weight Fig. Q5a oil Pressure gauge [3 marks]

1- In steady flow,the fluid characteristics at a point do not change with B- pressure ..... Pa. 2- The value of atmospheric pressure Patm at sea level is A- Patm = 101300 Pa B- Patm= 100000 Pa C- Patm = 1000000 N/m² A- Time 3- The value of static pressure at a point in a liquid depends on ........... A- Surface area B- height of liquid C- width of tank 4- Piezometer is used for measuring. Pressures. A- High B- low 5- The rate of volume flow Q is expressed as. C-meduim A- Q = mass x velocity B- Q = force x density C- force A- Time C- Q = area x velocity 6- If the value of Reynolds number is more than 3000 the flow is called A- transition B- laminar C- turbulent A-high 7- In uniform flow the velocity at any given time does not change with respect to. B- pressure C- space B- The value of static pressure in a liquid depends on .......... ..............above the point. B- height of liquid C- width of tank A- Surface area - The unit of mass flow rate (m) is. A- M³/S B- N/M² ..........above…

23 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)

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.

Specific Gravity of Water=1.0 SG of Mercury= 13.6 SG of n-Octane=0.655

Fig shows a U-tube differential manometer connecting two pressure pipes at A and B. Pipe A contains a liquid of specific gravity 1.8 under the pressure of 101 kN/m². The pipe B contains oil of specific gravity 0.7 under the pressure of 207 kN/m2. Find the difference of pressure measured by mercury as fluid filling U-tube in mm. The value of x and y are 2 m and 1.1 m respectively. Pe S, \Mercury The Mercury level difference (h ) in mm

86 N/cm"] 11. A single column vertical manometer (ie., micrometer) is connected to a pipe containing oil of sp. gr. 0.9. The area of the reservoir is 80 times the area of the manometer tube. The reservoir contains mercury of sp. gr. 13.6. The level of mercury in the reservoir is at a height of 30 cm below the centre of the pipe and difference of mercury levels in the reservoir and right linb is 50 cm. Find the pressure in the pipe. (Ans. 6.474 N/em) 12. A pipe contains an oil of sp. gr. 0.8. A differential manometer connected at the two points A and B of the pipe shows a difference in mercury level as 20 cm. Find the difference of pressure at the two paints. [Ans. 25113.6 N/m³) 13. A U-tube differential manometer connects two pressure pipes A and B. Pipe A contains carbon tetrachlo- ride having a specific gravity 1.594 under a pressure of 11.772 N/cm and pipe B contains oil of sp. gr. 0.8 under a pressure of 11.772 N/cm. The pipe A lies 2.5 m above pipe B. Find the difference of…

I need the answer as soon as possible

I need answer within 5 mins

Re=((d)(v)(p)/(u)). d is the diameter of the pipe in m. v is the velocity in m s^-1. p is the density of the fluid in kg m^-3 and u is the viscosity. What are the units of u in the SI system?

4. If the modulus of elasticity (E) for water is given to be 2.2GPa, what pressure is required to reduce the volume by 0.6%? 5. A tank contains two substance oil (A) and water (B) subject to variable air pressure: the dimension is shown below and corresponds to 1atm If air is

%VY l. lin. 3. N Sheet 1.pdf → Sheet 1 Page 1 of 2 Q1/ An orifice meter is to be calibrated for the measurement of the flow rate of a stream of liquid acetone. The differential manometer fluid has a specific gravity of 1.10. The calibration is accomplished by connecting the orifice meter in series with a rotameter that has previously been calibrated for acetone, adjusting a valve to set the flow rate, and recording the flow rate (determined from the rotameter reading and the rotameter calibration curve) and the differential manometer reading, h. The procedure is repeated for several valve settings to generate an orifice meter calibration curve of flow rate versus h. The following data are taken. VALVEX Flow Rate D (ml/s) Manometer Reading h(mm) 62 10 15 87 107 20 123 25 30 138 151 1- For each of the given readings, calculate the pressure drop across the orifice, AP (mm Hg). 2- The flowrate through an orifice should be related to the pressure drop across the orifice by the formula. V =…

A Pitot-static probe was used to measure the velocity distribution in a water tunnel. The two pressure lines from the probe were connected to a U-tube manometer which uses a liquid of specific gravity 1.7. The maximum velocity expected in the water tunnel was 2.3 m/s. Your job was to select an appropriate U-tube from a manufacturer which supplies manometers of different heights. The cost increases significantly with manometer height. Which of these should you purchase?

A weather report indicates the barometric pressure is 29.75 in of mercury. What is the atmospheric pressure in psi? Select the correct response: 1.0743 psi 3969.1260 psi 14.6106 psi 91.8475 psi A quart of SAE30 oil at 68 deg Fahrenheit weighs about 1.85 lb. Calculate the oil's mass density Select the correct response(s): 1.72 slugs/ft^3 2.71 slugs/ft^3 1.27 slugs/ft^3 217 slugs/ft-3

Pi constant to be used: 3.14159 Capillary tube: radius = 0.02 cm; length = 9 cm; pressure = 0.7 mmHg Liquid sample: density = 4 ml; time of flow = 4.5 seconds  Determine (a) pressure in MKS unit, (b) pressure in CGS unit, (c) the viscosity of the liquid, (d) If the weight was given as 8.5 grams, what will be the density of the liquid? (e) the kinematic viscosity of the liquid? (f) and the fluidity of the liquid?

I want solve

None

Example 1: • Assume that the fluid in the manometer is mercury and the height of the fluid in the reference column is .02 meters higher than the height of the fluid in the test column. Use 13,534 kilograms per cubic meter (kg/m^3) for the density of mercury and 9.8 meters per second squared (m/s^2) for the acceleration of gravity. What is the pressure in the test column in (Ра).

Please show all work

Q1(b) A multi fluid manometer is shown in Figure Q1(b). Determine the following: (i) Determine height 'h' if the difference in pressure between the two pipes is 15.38 kPa; [6] (ii) Difference in pressure between the two pipelines if both pipes are in the same level. [6] Take density of air = 1kg/m3 and density of water = 1000kg/m3. Oil SG = 0.79 Gasoline SG =0.70 PIPE Air 45 cm hcm Pipe 22 cm 10 cm `Mercury SG= 13.6 Water Figure Q1(b)

Dynamic viscosity of fluid Density of fluid If X= , then the unit of X is = O m?/kg O m/sec? O m/sec O m?/sec The container contains an oil of specific gravity 0.64 with the pressure measured at the bottom of the container is 150 Pa. Find the pressure head in m of oil. The pressure head of oil in m = If the density of fluid is not a variable in a fluid flow, it is known as O Incompressible O Unsteady flow O Uniform flow O Compressible

A catheter-sensor system for invasive pressure measurements has a catheter with a length of 1 m and a diameter of 2.5 mm. The catheter is filled with water at 20 C, with viscosity  = 0.001 Pa.s and density  = 103 kg/m3. The diaphragm elasticity Ed equals 0.5x1015 N/m5. a. Draw the simplified electrical model of the pressure measurement set-up that includes the catheter and the diaphragm and determine the transfer function of the pressure measurement system. b. Compute the natural frequency and damping ratio of this system. c. The current system has a damping ratio that is far from optimal. Suppose you are pinching the catheter for a small length lx so that the catheter diameter reduces to 0.2mm. Assuming the pinch to affect the resistance only, determine the length lx such that an optimal damping ratio  = 0.7 is obtained. d. Suppose that the assumption of purely resistive effects of the pinch cannot be made. Discuss (without calculations) the consequences on the derivation of lx.

18. Find the gauge readings at A and B in Fig. 2.51. [Ans. 17.39 kN/m² (vacuum), 12.61 kN/m²] Mercury vapour Mercury (S = 13.6) -Closed 0.6 m 1.5 m Fig. 2.51 Air Oil (S=0.8) Water A 0.2 m B

An air blower is to deliver 40,000 ft^3/min. Two U-tube gages measure suction and discharge pressures. The suction gauge reads a negative 2′′ of water. The discharge gage, located 3 ft above the point to which the suction gauge is attached, reads +3′′ of water. The discharge and suction ducts are of equal diameter. What size motor should be used to drive the blower if the overall efficiency is 68% (γ = 0.0750 lb/ft^3 for air)?

What is the specific weight of octane gas at 1.5 kgf/cm^2 gauge and 60 °F?