Heat Transfer Nucleate boiling is promoted On rough surfaces In the absence of agitation None of these On polished surfaces On rough surfaces In the absence of agitation None of these On polished surfaces 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 Vent the non-condensible gases Regulate the vapor flow Create vacuum Arrest the entrained liquid Vent the non-condensible gases Regulate the vapor flow Create vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which has the lowest Prandtl number? Aqueous solution Liquid metal Lube oil Water Aqueous solution Liquid metal Lube oil Water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Hot water (0.01 m³ /min) enters the tube side of a counter current shell and tube heat exchanger at 80°C and leaves at 50°C. Cold oil (0.05 m³/min) of density 800 kg/m³ and specific heat of 2 kJ/kg.K enters at 20°C. The log mean temperature difference in °C is approximately 50 37 45 32 50 37 45 32 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction in the turbulent core of a fluid flowing through a heated pipe is negligible, if the value of Prandtl number is 0.6 0.4 0.8 0.2 0.6 0.4 0.8 0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, conduction is negligible in the turbulent core of a fluid flowing through a heated pipe? 0.5 < 0.1 < 0.5 > 0.6 0.5 < 0.1 < 0.5 > 0.6 ANSWER DOWNLOAD EXAMIANS APP
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