Heat Transfer Nusselt number is the ratio of the Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe None of these Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe Heat flux at the wall to that across the entire pipe None of these Temperature difference to the temperature gradient at the wall ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of most liquids Decreases First increases upto a certain temperature and then becomes constant Increases Remains same Decreases First increases upto a certain temperature and then becomes constant Increases Remains same ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a multipass shell and tube heat exchanger, the LMTD correction factor is always Between 1 & 2 < 1 1 > 1 Between 1 & 2 < 1 1 > 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporation by thermocompression results in the Realisation of multiple effect economy in a single effect Both A and B Saving of steam None of these Realisation of multiple effect economy in a single effect Both A and B Saving of steam None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Graetz number > 100 Exit fluid temperature = wall temperature Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 Exit fluid temperature = wall temperature Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In thermal radiation for a black body (where, ε is emissivity and α is absorptivity) α ≠ 1, ε ≠ 1 α = 1; ε = 1 α = 1; ε ≠ 1 α ≠ 1, ε = 1 α ≠ 1, ε ≠ 1 α = 1; ε = 1 α = 1; ε ≠ 1 α ≠ 1, ε = 1 ANSWER DOWNLOAD EXAMIANS APP
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