Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Decrease Remain unchanged May increase or decrease; depends on the pressure Increase Decrease Remain unchanged May increase or decrease; depends on the pressure Increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) 2hi/K K/h0 2K/h0 hi/K 2hi/K K/h0 2K/h0 hi/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch None of these Gives a higher shell side pressure drop Gives a lower shell side pressure drop Can pack more surface area into a shell of given diameter None of these Gives a higher shell side pressure drop Gives a lower shell side pressure drop Can pack more surface area into a shell of given diameter ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The driving potential for the crystal growth during crystallisation is the __________ of the solution. Viscosity Super-saturation Concentration Density Viscosity Super-saturation Concentration Density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law of heat conduction applies to __________ surfaces. Neither A and B Isothermal Both A and B Non-isothermal Neither A and B Isothermal Both A and B Non-isothermal 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 Minimum Maximum Zero Infinity Minimum Maximum Zero Infinity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS