Week4CaseStudyThompson (1)

13. Your body reduces blood flow to a region by vasoconstriction. The artery can be modeled as a cylinder with radius R and a length L, and one can consider only forces from pressure and tension forces in the muscle with surface tension constant y = or where r is the thickness of the muscle. A. R50 microns B. R 100 microns- C. R 200 microns. NORMAL ARTERY D. R-300 microns E. R 400 microns MUSCLE BOFLOW pressure forces from the blood Assuming that the pressure difference AP=10 kPa and a 200 kPa for a typical 10-micron muscle, what is the largest-size blood vessel for which such a muscle could still constrict the blood vessel? tension forces from muscle

Q.1 a. Repeatability and reproducibility are ways of measuring precision, particularly in the field of engineering. i. What is an engineer's expectation when performing repeatability or reproducibility? ii. State a difference between repeatability and reproducibility in an experiment? b. Figure Q.1 shows the measurement data of two types of thermal transducers namely thermocouple. Турe E Туре К 6.8 4.2 20 40 60 80 100 Temperature Difference (°C) Voltage Output (mV)

Scores

1) Pitot tube can be used to measure the flow velocity. The equation can be derived from Bernoulli Equation. True or False 2) Which of the following statement is NOT correct about piping network? a) In parallel pipes, the flow rate is proportional to its diameter and inversely proportional to its length and friction factor. b) When analyzing the piping network, conservation of mass throughout the system must be satisfied. c) In piping systems with pumps, the Bernoulli equation should be corrected by introducing a kinetic energy correction factor. d) The algebraic sum of head losses for all loops equal to zero. 3) The EGL is always a distance V2/2g above the HGL. True or False

oblems: 1. A horizontal pipe, 1 ft. in diameter, tapers gradually to 8 in. in diameter. If the flow is 500 cu ft. of water per minute, what is the difference between the pressures at the two sections? Ans. PA - PB = 443.63lb per sq ft 2. Water flows through a horizontal pipe at a velocity of 50 ft. per sec. Owing to the pipe gradually expanding to a larger size, the velocity decreases to 35 ft. per sec. What is the difference between the pressures at two points, one in each size of pipe? Ans. Pg - PA = 1,236. 75 lb per sq ft

Learning Portal Academic Departments ETC - CIMS - Courses - Reports - e-Services - Moham Select one: O True O False The energy loss due to the change of flowrate of a fluid flow in direction is known as minor loss. Select one: O True O False Determine the time taken by the oil to get collected in a measuring jar of 26 x 10-3 m³. The oil has the specific that has a mean velocity of 9 m/s in a pipe of cross-sectional area 11 x 10-5 m2. Time taken (in s) arch EUROSTARD

56.0 mL of two different liquids are poured through a funnel with a narrow exit tube, and the time for all of the liquid to flow through is recorded. Here are some results: time to flow through funnel trial Liquid X Liquid Y 1.60 s 3.62 s 1.52 s 3.44 s 1.44 s 3.56 s Note: the two liquids have the same density. Which statement below is true about these liquids based only on the data in the table? O The intermolecular forces in liquid X are stronger than those in liquid Y. The boiling point of liquid X is higher than the boiling point of liquid Y. The viscosity of liquid X is greater than the viscosity of liquid Y. The surface tension of liquid X is greater than the surface tension of liquid Y. The viscosity of liquid X is less than the viscosity of liquid Y. 3.

Q4/A- The mass of the filter is 25.3046 gm. after 20 min the filter mass will be 25.4112 gm. with volumetric flow is 5.2 m 3/hr. What is the concentration of pollutant after one day