QUESTION 1:1.1) Select the material that will assist the best in conducting heat from point A topoint B:A) Aluminium alloyB) BronzeC) QuartzD) Iron1.2) Which of the following options will maximze thermal contact resistance:A) Applying a thermally conducting liquid on the surfaces before they arepressed against each otherB) By inserting a soft metallic foil such as tin, silver, copper, nickel, oraluminum between the two surfacesC) All of the aboveD) None of the above1.3) True/False: Effectiveness of a single fin is the ratio of the total heat transferfrom the finned surface to the heat transfer from the same surface if therewere no fins.1.4) True/False: The heat flux in a circular tube with laminar forced convectionwill be higher near the inlet of the tube and gradually decreases to the fullydeveloped value.1.5) Fill in the blanks: A body whose surface properties are independent ofwavelength is said to be aone for all wavelengths, the emissivity of a_- The emissivity of aisis between zero andone.1.6) Fill in the blanks: The thermal resistance of the tube in a heat exchanger isusually negligible when the wall thickness of the tube isthermal conductivity of the tube material isand the1.7) True/False: The heat transfer in a heat exchanger will reach its maximumvalue when the cold fluid is heated to the inlet temperature of the hot fluid.Therefore, the temperature of the cold fluid cannot rise above the inlettemperature of the hot fluid at any location in a heat exchanger.

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Answered: 1.1) Select the material that will…

1.1) Select the material that will assist the best in conducting heat from point A to point B: A) Aluminium alloy B) Bronze C) Quartz D) Iron

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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