Heat Transfer Presence of a non-condensing gas in a condensing vapour None of the listed here increases the rate of condensation is desirable to increase the film co-efficient decreases thermal resistance None of the listed here increases the rate of condensation is desirable to increase the film co-efficient decreases thermal resistance ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for a spherical shell is (where, K = thermal conductivity of insulating material h0 = heat transfer coefficient at the outer surface) 2K/h0 h0/K K/h0 h0/2K 2K/h0 h0/K K/h0 h0/2K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of an ideal solution Both B and C Increases rapidly with temperature rise In independent of pressure Decreases rapidly with temperature rise Both B and C Increases rapidly with temperature rise In independent of pressure Decreases rapidly with temperature rise ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer is not a function of the __________ number. Nusselt Grashoff Both B & C Reynolds Nusselt Grashoff Both B & C Reynolds 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? Long vertical evaporator Horizontal tube evaporator Calenderia vertical tube evaporator Agitated film evaporator Long vertical evaporator Horizontal tube evaporator Calenderia vertical tube evaporator Agitated film evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Biot number, the characteristic length used is the ratio of the __________ of the solid. Surface area to perimeter Surface area to volume Perimeter to surface area Volume to surface area Surface area to perimeter Surface area to volume Perimeter to surface area Volume to surface area ANSWER DOWNLOAD EXAMIANS APP
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