Heat Transfer Boiling of milk in an open vessel is an example of __________ boiling. Film None of these Saturated nucleate Sub-cooled Film None of these Saturated nucleate Sub-cooled ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the Existence of thermal boundary layer Temperature gradient produced due to density difference None of these Buoyancy of the bubbles produced at active nucleation site Existence of thermal boundary layer Temperature gradient produced due to density difference None of these Buoyancy of the bubbles produced at active nucleation site ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient May increase or decrease; depends on the feed Increases Decreases Is not affected May increase or decrease; depends on the feed Increases Decreases Is not affected 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. Inertial None of these Elastic Viscous Inertial None of these Elastic Viscous ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. Increases Decreases May increase or decrease, depends on the vacuum Remains constant Increases Decreases May increase or decrease, depends on the vacuum Remains constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Stefan-Boltzman constant depends on the Surface Medium Temperature None of these Surface Medium Temperature None of these ANSWER DOWNLOAD EXAMIANS APP
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