Heat Transfer Heat transfer rate described by Fourier's law will decrease, if the __________ increases. Temperature difference Thermal conductivity Thickness Heat transfer area Temperature difference Thermal conductivity Thickness Heat transfer area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Log mean temperature difference (LMTD) cannot be used, if heat transfer co-efficient over the entire heat exchanger is not constant there exists an unsteady state none of the listed here the heat capacity is not constant and there is a phase change. heat transfer co-efficient over the entire heat exchanger is not constant there exists an unsteady state none of the listed here the heat capacity is not constant and there is a phase change. ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for Cube Sphere Cylinder Equal for all the three Cube Sphere Cylinder Equal for all the three ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Temperature profile in steady state heat transfer is Linear none of the listed here hyperbolic parabolic Linear none of the listed here hyperbolic parabolic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The actual temperature drop across the heating surface in an evaporator depends on the All of these Feed Pressure difference between steam chest and vapour space Depth of liquid over heating surface All of these Feed Pressure difference between steam chest and vapour space Depth of liquid over heating surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface. Saturated Local Pool Nucleate Saturated Local Pool Nucleate ANSWER DOWNLOAD EXAMIANS APP
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