do fast. 1. Oil with a kinematic viscosity of 3.5 x 10 m²/s flows through a commercial steel pipewith an internal diameter of 10 cm. The pipe has a relative roughness of 0.002. The flowrate is 0.05 m³/s.Tasks:a. Calculate the Reynolds number for the flow.b. Use the Moody chart to determine the Darcy friction factor (f) for this flow.C.If the pipe is 200 m long, calculate the pressure drop due to friction.

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Answered: 1. Oil with a kinematic viscosity of…

Understanding Business

12th Edition

ISBN:9781259929434

Author:William Nickels

Publisher:William Nickels

Chapter1: Taking Risks And Making Profits Within The Dynamic Business Environment

Section: Chapter Questions

Problem 1CE

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Answers: a) 19.1 C; b) 695 C 7.56 A spherical, underwater instrument pod used to make soundings and to measure conditions in the water has a diameter of 100 mm and dissipates 400 W. (a) Estimate the surface temperature of the pod when suspended in a bay where the current is 1 m/s and the water temperature is 15°C. (b) Inadvertently, the pod is hauled out of the water and suspended in ambient air without deactivat- ing the power. Estimate the surface temperature of the pod if the air temperature is 15°C and the wind speed is 3 m/s.
8. A teller at a drive-up window at a bank had the following service times (in minutes) for 20 randomly selected customers: SAMPLE 1 2 3 4 4.5 4.6 4.5 4.7 4.2 4.5 4.6 4.6 4.2 4.4 4.4 4.8 4.3 4.7 4.4 4.5 4.3 4.3 4.6 4.9 Select a chart to monitor the central tendency of the process, what are the 3-sigma control limits using a mean chart? Keep 3 decimal places. Select one: a. LCL = 4.212, UCL = 4.788 b. LCL = 4.414, UCL = 4.586 c. LCL = 4.245, UCL = 4.755 d. None of the other options. e. LCL = 4.385, UCL = 4.615
How could a customer survey card be used to monitor the performance of hotel desk clerks?
SCENARIO A: A woodcutting operation has a target (nominal) value of 200 inches and consistently averages 200.1 inches with a standard deviation of .05 inches. The design engineers have established an upper specification limit of 200.25 and a lower specification limit of 199.75 inches. The process capability ratio, Cp, of the operation is: Group of answer choices a Less than 1 b Greater than or equal to 1 but less than 1.25 c Greater than or equal to 1.25 but less than 1.5 d Greater than or equal to 1.5 but less than 1.75 e Greater than or equal to 1.75 but less than 2 f Greater than or equal to 2
Kathleen McFadden's restaurant in Boston, has recorded the following data for eight recent customers: a) Kathleen wants you to graph the eight points (X₁, ₁), i = 1, 2, find possible causes of the problem. Choose the correct graph below. A. No. of Trips to Kitchen 3 № 5 ● 10 Time (min) 15 B. Time (min) 15- 5- Customer Number, i 1 2345678 Minutes from Time Food Ordered Until Food Arrived (y₁) 0 1 2 3 4 5 6 No. of Trips to Kitchen 10.25 13.00 9.00 5.00 9.25 6.25 12.00 11.00 O C. 8. She has been concerned because customers have been waiting too long for their food, and this graph is intended to help her Time (min) 14- 12- 10- 8- 6- 4- No. of Trips to kitchen by Waitress (x₁) 0- 4 5313255 D. Time (min) 14- 12- L 10- 8- 6- 4- 2- 0- ▬▬▬▬▬▬▬▬▬▬▬
Problem 10-21 (Algo) A process that produces computer chips has a mean of .04 defective chips and a standard deviation of .003 chips. The allowable variation is from .035 to .045 defective. a.Compute the capability index (Cp) for the process. (Round your intermediate calculations to 3 decimal places and final answer to 2 decimal places.) Capability index b. Is the process capable? Hint. Use 1.33 as the standard capabality index. O No Ⓒ Yes
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How could control charts, Pareto diagrams, and cause-and effect diagrams be used to identify quality problems at a hotel?
Problem 10-21 (Algo) A process that produces computer chips has a mean of .04 defective chips and a standard deviation of .003 chips. The allowable variation is from .032 to .048 defective. a.Compute the capability Index (C) for the process. (Round your Intermediate calculations to 3 decimal places and final answer to 2 decimal places.) Capability index b. Is the process capable? Hint. Use 1.33 as the standard capabality Index. O Yes O No
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