Answered: 20. Using the steam tables, what is the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Transcribed Image Text:14. What is a Moody Chart used to determine? 15. Express a volume of 0.375 litres in Sl units 16. What is the name given to the shape of the velocity profile of a fluid flowing in a turbulent manner through a pipe? Provide a sketch of this profile. 17. Write an expression relating mass flow rate to the velocity of a fluid. 18. State the conditions required for a stoichiometric combustion reaction. 19. What would be the products of combustion from the stoichiometric combustion of a hydrocarbon fuel? 20. Using the steam tables, what is the value of specific enthalpy of saturated liquid water at 200 kPa? 21. Name two thermodynamic properties that may be found in steam tables. 22. What does the term emissivity mean? 23. Name one characteristic of a surface with low emissivity? 24. Explain the difference between natural and forced convection 25. Express a pressure of 200 milli-bar in Pa 26. What are the units for the overall heat transfer coefficient, U? 27. As a hot air balloon rises, the atmospheric pressure reduces. What relationship would enable you to calculate the change in pressure? 28. What fluid property is responsible for the no-slip boundary condition? 29. If you measure the pressure in a car tyre with a pressure gauge and it reads zero bar, what is the absolute pressure in the car tyre in Pa? 30. What is an adiabatic process? 31. There are two methods (equations) to determine the pressure drop along a length of pipe, what are they called and in which circumstances are they most likely to be used?

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