Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Decreases Increases Remains unchanged Increases exponentially Decreases Increases Remains unchanged Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) Independent of 't' ∝ t ∝ √t ∝ 1/t Independent of 't' ∝ t ∝ √t ∝ 1/t 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
Heat Transfer Steam side heat transfer co-efficient in an evaporator is in the range of __________ kcal/hr.m²°C. 100-500 1000-1500 5000-15000 18537 100-500 1000-1500 5000-15000 18537 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a backward feed multiple effect evaporator No pumps are required between successive effects Feed is introduced in the first effect Feed flows from low pressure to high pressure None of these No pumps are required between successive effects Feed is introduced in the first effect Feed flows from low pressure to high pressure None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Use of transverse baffles in a shell and tube heat exchanger is done to increase the Turbulence of shell side fluid Rate of heat transfer All of these Flow velocity Turbulence of shell side fluid Rate of heat transfer All of these Flow velocity ANSWER DOWNLOAD EXAMIANS APP
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