Heat Transfer Dropwise condensation of steam on cooling surface is promoted Only in presence of air None of these An oily surface When both the steam and the tube are clean Only in presence of air None of these An oily surface When both the steam and the tube are clean ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling of milk in an open vessel is an example of __________ boiling. Sub-cooled None of these Saturated nucleate Film Sub-cooled None of these Saturated nucleate Film ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? Horizontal tube evaporator Agitated film evaporator Long vertical evaporator Calenderia vertical tube evaporator Horizontal tube evaporator Agitated film evaporator Long vertical evaporator Calenderia vertical tube evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat produced when a steady state current, I passes through an electrical conductor having resistance, 'R' is IR IR2 None of the listed here I2R IR IR2 None of the listed here I2R ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The heat flux in the nucleate boiling regimes is proportional to (where, ΔT = excess temperature) (ΔT)⁴ (ΔT)² √(ΔT) (ΔT)³ (ΔT)⁴ (ΔT)² √(ΔT) (ΔT)³ ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would First increase and then decrease First decrease and then increase Decrease Increase First increase and then decrease First decrease and then increase Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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