Heat and Mass Transfer The thickness of thermal and hydrodynamic boundary layer is equal if Prandtl number is Less than one Equal to one Equal to Nusselt number Greater than one Less than one Equal to one Equal to Nusselt number Greater than one ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer takes place as per Kirchoff's law Second law of the thermodynamics Zeroth law of thermodynamics First law of thermodynamic Kirchoff's law Second law of the thermodynamics Zeroth law of thermodynamics First law of thermodynamic ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer In counter current flow heat exchanger, the logarithmic temperature difference between the fluids is ________ as compared to parallel flow heat exchanger. None of these Same Less Greater None of these Same Less Greater ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The total radiation from a black body per second per unit area is ________ fourth power of the absolute temperature. This statement is known as Stefan Boltzmann law. None of these Equal to Directly proportional to Inversely proportional to None of these Equal to Directly proportional to Inversely proportional to ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Joule sec is the unit of Universal gas constant Thermal conductivity Planck's constant Kinematic viscosity Universal gas constant Thermal conductivity Planck's constant Kinematic viscosity 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 50% of the value of initial temperature difference The time taken to attain 63.2% of the value of initial temperature difference The time taken to attain the final temperature to be measured Determined by the time taken to reach 100°C from 0°C 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 The time taken to attain the final temperature to be measured ANSWER DOWNLOAD EXAMIANS APP