Heat and Mass Transfer The critical thickness of insulation for a sphere is 2k/h₀ h₀/2k h₀/k k/h₀ 2k/h₀ h₀/2k h₀/k k/h₀ ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The use of heat exchangers is made in Condensers and evaporators in refrigeration and air conditioning units Radiators in automobile Condensers and boilers in steam plants All of these Condensers and evaporators in refrigeration and air conditioning units Radiators in automobile Condensers and boilers in steam plants All of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The time constant of a thermocouple is Determined by the time taken to reach 100°C from 0°C The time taken to attain the final temperature to be measured The time taken to attain 50% of the value of initial temperature difference The time taken to attain 63.2% of the value of initial temperature difference Determined by the time taken to reach 100°C from 0°C The time taken to attain the final temperature to be measured The time taken to attain 50% of the value of initial temperature difference The time taken to attain 63.2% of the value of initial temperature difference ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has maximum value of thermal conductivity? Brass Steel Copper Aluminium Brass Steel Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The emissivity for a black body is 0.75 0.5 1 0.75 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Temperature of steam at around 540°C can be measured by Thermocouple Thermometer Thermistor None of these Thermocouple Thermometer Thermistor None of these ANSWER DOWNLOAD EXAMIANS APP
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