Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for All bodies Black painted bodies only Polished bodies only A black body All bodies Black painted bodies only Polished bodies only A black body ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal boundary layer at NPr > 1 And the hydrodynamic boundary layer are identical Is thinner than hydrodynamic boundary layer Disappears Is thicker than hydrodynamic boundary layer And the hydrodynamic boundary layer are identical Is thinner than hydrodynamic boundary layer Disappears Is thicker than hydrodynamic boundary layer ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For __________ Prandtl number values, the heat conduction will be negligible in the buffer zone. High No Low Extremely low High No Low Extremely low ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) ∝ t ∝ √t Independent of 't' ∝ 1/t ∝ t ∝ √t Independent of 't' ∝ 1/t ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters is increased by use of finned tube in a multipass shell and tube heat exchanger? Tube side pressure drop and the heat transfer rate All of these Effective tube surface area for convective heat transfer Convective heat transfer co-efficient Tube side pressure drop and the heat transfer rate All of these Effective tube surface area for convective heat transfer Convective heat transfer co-efficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following accessories is provided in the vapor line of an evaporator for removing the entrained liquid? Bleed point Baffle Vent Catchall Bleed point Baffle Vent Catchall ANSWER DOWNLOAD EXAMIANS APP
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