Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. May increase or decrease; depends on the pressure Increase Remain unchanged Decrease May increase or decrease; depends on the pressure Increase Remain unchanged Decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The wavelength at which the maximum monochromatic emissive power occurs for a black body, is (where, T = absolute temperature of the black body) Independent of T α T⁴ α 1/T αT Independent of T α T⁴ α 1/T αT ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water is normally used as a coolant in the heat exchange equipments mainly because ofits High fluidity Low viscosity Abundance & high heat capacity Low density High fluidity Low viscosity Abundance & high heat capacity Low density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by Natural convection Forced convection Steady state conduction Transient conduction Natural convection Forced convection Steady state conduction Transient conduction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Duhring rule is important in solving problems on Distillation Evaporation Humidification Crystallisation Distillation Evaporation Humidification Crystallisation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dietus-Boelter equation cannot be used for molten metals mainly due to its very low thermal conductivity viscosity Grashoff number Prandtl number thermal conductivity viscosity Grashoff number Prandtl number ANSWER DOWNLOAD EXAMIANS APP
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