Heat Transfer For __________ Prandtl number values, the heat conduction will be negligible in the buffer zone. Extremely low High No Low Extremely low High No Low ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop Because of simplicity of fabrication For low heat load To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop Because of simplicity of fabrication For low heat load ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when CPA < CPB KA < 0.5kB KA>2 kB CPA > CPB CPA < CPB KA < 0.5kB KA>2 kB CPA > CPB ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a co-current double pipe heat exchanger used for condensing saturated steam over the inner tube, if the entrance and exit conditions of the coolant are interchanged, then the rate of condensation will Remain unchanged Increase Either increase or decrease; depends on the coolant flow rate Decrease Remain unchanged Increase Either increase or decrease; depends on the coolant flow rate Decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Arrest the entrained liquid Regulate the vapor flow Vent the non-condensible gases Create vacuum Arrest the entrained liquid Regulate the vapor flow Vent the non-condensible gases Create vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam trap is used to None of these Condense the steam flowing in the pipeline Remove water resulting from partial condensation of steam Stop the supply of steam None of these Condense the steam flowing in the pipeline Remove water resulting from partial condensation of steam Stop the supply of steam ANSWER DOWNLOAD EXAMIANS APP
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