Line CD to be laid out using a 100 ft steel tape. With a cross sectional area 0.0060 in 2, weight 2.0 lb, and standardized at 68 °F to be 100.001 ft between end marks when supported throughout with a 12 lb pull, and if supported at ends only under 16 lb tension.  Line CD length was found to be 622.85ft on that day the temperature was found to be 104° F, the tape was supported at ends only with 18 lb pull.   ​Find the corrected length measured of line CD.     Recorded distance (ft) Temperature (F) Means of support Tension (Lb) 622.85 ft 104 Throughout 16 622.85 104 Ends only 18

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Temperature Difference and Heat Transfer

Whenever there is a flow of heat flux resulting from a temperature gradient within the material or between two materials, there is heat transfer. Heat transfer primarily arises due to temperature differences between two bodies or within bodies. The term temperature gradient denotes temperature differences or variation of temperature due to change in some quantity. The fundamental use of the concept of temperature is found in the zeroth law of thermodynamics.