Heat Transfer 1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C. None of these 1.49 1 4.88 None of these 1.49 1 4.88 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of steel Remains unchanged Decreases Increases exponentially Increases Remains unchanged Decreases Increases exponentially Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 51 min 44 min 22 min 15 min 51 min 44 min 22 min 15 min 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' ∝ 1/t ∝ t ∝ √t Independent of 't' ∝ 1/t ∝ t ∝ √t ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The equation, Nst = f/2, is the __________ analogy. Reynolds Prandtl Colburn None of these Reynolds Prandtl Colburn None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius 'r' of insulation on a pipe is given by r = k/h r = 2k/h r = h/k r = k/2h r = k/h r = 2k/h r = h/k r = k/2h ANSWER DOWNLOAD EXAMIANS APP
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