1. Circle or write the correct answer. (4 Marks) (a) (b) True/False: Skin fricti

Question

1. Circle or write the correct answer. (4 Marks) (a) (b) True/False: Skin friction for a velocity boundary layer is analogous to Nusselt number for a thermal boundary layer. Always/Sometimes/Never if a solid wall with linear variation in thermal conductivity (K = Kox) has no internal energy generation, the temperature profile inside the wall will be a polynomial of second order (assuming non-zero 1D heat conduction and steady state). True/False: The analogy between Ohms law for electric circuits and Fouriers Law for heat conduction is only valid if the thermal conductivity of the material is assumed to be constant. (c) (d) True/False: Thermal diffusivity is a measure of a materials thermal energy storage capacity

Explanation / Answer

(d) Thermal diffusivity is a measure of a materials energy storage capacity. (True)

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