Heat and Mass Transfer An electric cable of aluminium conductor (k = 240 W/mK) is to be insulated with rubber (k = 0.15 W/mK). The cable is to be located in air (h = 6 W/m²). The critical thickness of insulation will be 40 mm 25 mm 160 mm 800 mm 40 mm 25 mm 160 mm 800 mm ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity is a All of these Function of temperature Dimensionless parameter Physical property of a substance All of these Function of temperature Dimensionless parameter Physical property of a substance ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The thermal diffusivities for solids are generally More than those for liquids and gases More or less same as for liquids and gases Less than those for gases Less than those for liquids More than those for liquids and gases More or less same as for liquids and gases Less than those for gases Less than those for liquids ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Temperature of steam at around 540°C can be measured by Thermometer Thermocouple Thermistor None of these Thermometer Thermocouple Thermistor None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The amount of radiation mainly depends upon the All of these Type of surface of the body Temperature of the body Nature of the body All of these Type of surface of the body Temperature of the body Nature of the body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat flows from one body to other when they have Different heat contents Different temperatures Different specific heat Different atomic structure Different heat contents Different temperatures Different specific heat Different atomic structure ANSWER DOWNLOAD EXAMIANS APP
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