Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Low density High viscosity Dense structure Partial ionisation Low density High viscosity Dense structure Partial ionisation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The statement that "maximum wavelength of radiation is inversly proportional to the temperature" is __________ law. Planck's None of these Wien's displacement Stefan-Boltzman's Planck's None of these Wien's displacement Stefan-Boltzman's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivities of most of the liquids __________ with rise in temperature. Remains unchanged Decreases May increase or decrease; depends on the liquid Increases Remains unchanged Decreases May increase or decrease; depends on the liquid Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vent pipes are provided in a condenser to None of these Purge the condenser Facilitate easy cleaning of tubes Remove non-condensable gases None of these Purge the condenser Facilitate easy cleaning of tubes Remove non-condensable gases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashoff number, which is defined as g . β(Ts - T∞) ρ². L³/μ², is proportional to the ratio of buoyancy force to __________ force. Elastic Viscous Inertial None of these Elastic Viscous Inertial None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a parallel flow heat exchanger, if the outlet temperature of hot and cold fluids are the same, then the log mean temperature difference (LMTD) is Infinity Zero Maximum Minimum Infinity Zero Maximum Minimum ANSWER DOWNLOAD EXAMIANS APP