Theory and Design for Mechanical Measurements
6th Edition
ISBN: 9781118881279
Author: Richard S. Figliola, Donald E. Beasley
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 9, Problem 9.30P
The output from a resting healthy human adult heart is about 5 L/min. We can estimate that the mean systemic pressure is 95 mm Hg with a mean atrial pressure of 4 mm Hg. The mean pulmonary pressure is 15 mm Hg with an atrial pressure of 2 mm Hg. Compare the vascular resistance of the left (systemic) circulation to that of the right (pulmonary) circulation. Assume that the flow remains laminar.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A pump draws water from a well through a vertical pipe 15 cm
in diameter. The bomb drains through a horizontal pipe 10 cm
in diameter, located 3.20 m above the water level from the well.
When 35 lit/sec are pumped, the readings of the pressure
gauges placed at the inlet and at the pump output are -31.4
kPa and 176.5 kPa, respectively. The discharge pressure gauge
is located 1.0 m above the suction pressure gauge. Determine
the power output of the pump.
Height of water rise in piezometer attached to a pipeline is 0.1 m. Gauge pressure of water inside the pipeline is
0.00981 bar
98.1 Pa
9.81 kPa
981 kPa
The unit of air flow measurement
instruement in cooling tower experiment is
meter per second.
Select one:
True
False
Chapter 9 Solutions
Theory and Design for Mechanical Measurements
Ch. 9 - Prob. 9.1PCh. 9 - 9.2 State the following pressures as absolute...Ch. 9 - A water-filled manometer is used to measure the...Ch. 9 - Prob. 9.4PCh. 9 - 9.5 The pressure differential across an orifice...Ch. 9 - Show that the static sensitivity of an inclined...Ch. 9 - Prob. 9.7PCh. 9 - Show that the instrument (systematic) uncertainty...Ch. 9 - A strain gauge, diaphragm pressure transducer...Ch. 9 - Select a practical fluid to use in a manometer to...
Ch. 9 - An air pressure over the 200- to 400-N/m2 range is...Ch. 9 - Calculate the design-stage uncertainty in...Ch. 9 - The pressure drop across a valve through which air...Ch. 9 - Estimate the sensitivity (pF/mm) of a capacitance...Ch. 9 - A diaphragm pressure transducer is calibrated...Ch. 9 - A diaphragm pressure transducer is coupled with a...Ch. 9 - Prob. 9.17PCh. 9 - A 2.0 mm thick circular steel diaphragm (Em = 200...Ch. 9 - Estimate the differential pressure limit for a...Ch. 9 - The pressure fluctuations in a pipe filled with...Ch. 9 - What is the sensitivity of a pitot-static tube...Ch. 9 - A pitot-static pressure probe inserted within a...Ch. 9 - A tall pitot-static tube is mounted through and...Ch. 9 - The pressure transmission line response equation...Ch. 9 - Prob. 9.26PCh. 9 - Prob. 9.28PCh. 9 - Compare the inertance of water in a 0.2-m-long...Ch. 9 - The output from a resting healthy human adult...Ch. 9 - Prob. 9.31PCh. 9 - A pressure drop of 213 Pa is measured between two...Ch. 9 - Wall pressure taps (e.g., Figs. 9.19 and 9.21) are...Ch. 9 - Prob. 9.34PCh. 9 - Prob. 9.35PCh. 9 - Determine the resolution of a manometer required...Ch. 9 - A long cylinder is placed into a wind tunnel and...Ch. 9 - Prob. 9.38PCh. 9 - Prob. 9.39PCh. 9 - What is the sound pressure in pascals if the...Ch. 9 - A 6-mm-diameter pitot-static tube is used as a...Ch. 9 - For the thermal anemometer in Figures 9.31 and...Ch. 9 - Determine the static sensitivity of the output...Ch. 9 - A laser Doppler anemometer setup in a dual-beam...Ch. 9 - A set of 5,000 measurements of velocity at a point...Ch. 9 - Aircraft airspeed is measured using a pitot...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Three arterioles of the same length are in parallel and connected to an artery. The flow rate in the artery is 300 mL/min. One of the arterioles is constricted relative to the other two and has a flow rate of 50 mL/min. What is the flow rate in each of the other two arterioles? O 250 mL/min O It can't be determined unless you know the actual diameter and length of the arterioles 125 mL/min 300 mL/min 50 mL/minarrow_forwardExperiment Data Take the following data for the syringe injection pump Inner diameter of syringe barrel: D = 1.5 cm Inner diameter of the needle shaft of the syringe: d = 0.5 mm The thread pitch of lead screw: pt 0.75 mm Lead screw rotation velocity (rpm): n Calculations Liquid injection rate (cm /hr) Q = pt *n * 60 * n * D²/4 Velocity of liquid in syringe barrel (cm/min) v = 4Q/ (60 * T * D?) %3D Velocity of liquid in syringe needle (cm/min) vn = 4Q/ (60 * n * d?) %3D Find the rotation velocity of lead screw n and the velocity of liquid in syringe needle if the required injection dose is 1. 10 cm3 in 3 hours (continuous injection) 2. 20 cm3 in 12 hours (discontinuous injection, 5 cm³each 3 hour, injection time = 1 min). Discus the results briefly.arrow_forward9. If the blood viscosity is 2.7x10-3 Pa.s, length of the blood vessel is 1 m, radius of the blood vessel is 1 mm, calculate the tubular resistance of the blood vessel (in GPa.S/m3 ). If the blood pressure at the inlet of the above vessel is 43 mm Hg and if the blood pressure at the outlet of the above vessel is 38 mm Hg. Calculate the flow rate (in ml/min).arrow_forward
- Question 4: Calculate the flow rate of blood through the following system. Assume that the syringe is kept 1 m above the ground level. Ignore minor losses. a. Deriving the pressure balance of the system b. Calculation of blood viscosity c. Calculation of pressure loss through the tubes d. Calculation of flow rate Blood L=1m D= 0.5 cm Plastic tube L=0.1 m D= 1.5 cm Glass tubearrow_forwardWhen ventilating the patient on a time-cycled/pressure-limited ventilator, what parameters determine the tidal volume delivered? How can these values increase tidal volume? How can they decrease tidal volume?arrow_forwardThe human circulation system has approximately 1 x 10^9 capillary vessels. Each vessel has a diameter of about 9 um. Asssuming cardiac output is 8 L/min, determine the average velocity (in cm/s) of blood flow through each capillary vessel.arrow_forward
- Experiment Data Take the following data for the syringe injection pump 2/ Inner diameter of syringe barrel: D = 1.5 cm Inner diameter of the needle shaft of the syringe: d = 0.5 mm The thread pitch of lead screw: pt = 0.75 mm Lead screw rotation velocity (rpm): n Calculations a Liquid injection rate (cm³/hr) Q = pt*n* 60 * π * D²/4 Velocity of liquid in syringe barrel (cm/min) vb = 40/ (60** D²) Velocity of liquid in syringe needle (cm/min) v₁ = 40/ (60*n* d²) b Find the rotation velocity of lead screw n and the velocity of liquid in syringe needle if the required injection dose is 1. 10 cm³ in 3 hours (continuous injection) 2. 20 cm³ in 12 hours (discontinuous injection, 5 cm³ each 3 hour, injection time = 1 min). Discus the recl Solution Calculate the liquid injection rate Q = P₁ xnx60xD² = 0.075xnx60××1.5² = 7.94n- cm³ hr Calculate the velocity of liquid in barrel V₁ == 40 60xπx D² 4x7.94n 60xx1.5² = 0.07ncm hr Calculate the velocity of liquid in needle 40 60xxxd2 4x7.94n 60xπx…arrow_forwardYou are replacing an HVAC system in your building. The system is a hot water system that consists of a boiler that feeds several air-handling units. The total heating load for the building is 2649 thousand Btuh. The max pressure required to pump through the furthest air-handling unit is 69 ft in total head. The inlet temperature at the air-handler is 196 F and the inlet-outlet temperature difference is 30 F. What is the required total flow ratearrow_forwardExperiment Data Take the following data for the syringe injection pump Q/ Inner diameter of syringe barrel: D = 1.5 cm Inner diameter of the needle shaft of the syringe: d = 0.5 mm The thread pitch of lead screw: pt = 0.75 mm Lead screw rotation velocity (rpm): n Calculations a Liquid injection rate (cm³/hr) Q = pt*n* 60 * π * D²/4 Velocity of liquid in syringe barrel (cm/min) v₂ = 40/ (60** D²) Velocity of liquid in syringe needle (cm/min) v₁ = 40/ (60**d²) K 6- Find the rotation velocity of lead screw n and the velocity of liquid in syringe needle if the required injection dose is 1. 10 cm³ in 3 hours (continuous injection) 2. 20 cm³ in 12 hours (discontinuous injection, 5 cm³ each 3 hour, injection time = 1 min). Discus the reci Solution Calculate the liquid injection rate Q = P₁ xnx60xD² = 0.075xnx60××1.5² = 7.94n- cm² hr Calculate the velocity of liquid in barrel V₂ == 40 60xπx D² 4x7.94n 60xx1.5² = 0.07ncm hr Calculate the velocity of liquid in needle 40 60xπxd² 4x7.94n 60xπx…arrow_forward
- 1. A capillary tube is being used to measure the viscosity of a Newtonian liquid. The tube has a 4-cm diameter and a length of 20 cm. Estimate the viscosity coefficient for the liquid if a pressure of 2.5 kPa is required to maintain a flow rate of 1 kg/s. The liquid density is 998 kg/m3 2. Calculate the viscosity of a fluid that would allow a pressure drop of 35 kPa over a 5 – m length of 3.4 in. stainless steel sanitary pipe if the fluid is flowing at 0.12 m3/hr and has a density of 1010 kg/m3. Assume laminar flow. 3. At 2 cm diameter, 5 cm long capillary-tube viscometer is being used to measure viscosity of 10 – Pa.s liquid food. Determine the pressure required for measurement when a flow rate of 1 kg/min is desired and ρ= 1000 kg/m3.arrow_forwardAn orifice meter with orifice area 969 mm2 is inserted in a pipe of area 1938 mm2 The pressure gauges fitted upstream and downstream of the orifice meter gives readings of 295 N/cm2 and 85 N/cm2 respectively. Co-efficient of discharge for the orifice meter is given as 0.64. Find the discharge of water through pipe. Head of water (in m) Answer for part 1 The discharge of water through pipe (in Litres/sec) Answer for part 2arrow_forwardThe air is measured at 20 deg. C and 679mm Hg. The duct diameter is 744 mm while the discharge diameter is 340mm The fan draws 4 m^3/s air and the static pressure measured is 2 cm water Determine the power output in kW Answer should be round off to 2 decimal placesarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
8.01x - Lect 27 - Fluid Mechanics, Hydrostatics, Pascal's Principle, Atmosph. Pressure; Author: Lectures by Walter Lewin. They will make you ♥ Physics.;https://www.youtube.com/watch?v=O_HQklhIlwQ;License: Standard YouTube License, CC-BY
Dynamics of Fluid Flow - Introduction; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=djx9jlkYAt4;License: Standard Youtube License