Heat Transfer According to Reynolds analogy, Stanton number is equal to f/2 2f f f/4 f/2 2f f f/4 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? Effective tube surface area for convective heat transfer Convective heat transfer co-efficient All of these Tube side pressure drop and the heat transfer rate Effective tube surface area for convective heat transfer Convective heat transfer co-efficient All of these Tube side pressure drop and the heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nucleate boiling is promoted On rough surfaces None of these On polished surfaces In the absence of agitation On rough surfaces None of these On polished surfaces In the absence of agitation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time t = 283 s t = 800 s t = 356 s t = 400 s t = 283 s t = 800 s t = 356 s t = 400 s ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always ∞ < 1 > 1 1 ∞ < 1 > 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the total emissivity of conductors Decreases linearly Increases Decreases Remains same Decreases linearly Increases Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
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