Heat Transfer The actual temperature drop across the heating surface in an evaporator depends on the All of these Pressure difference between steam chest and vapour space Depth of liquid over heating surface Feed All of these Pressure difference between steam chest and vapour space Depth of liquid over heating surface Feed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Intermittant tube cleaning is possible to be done in case of a __________ evaporator. Horizontal tube None of these Basket type Calendria Horizontal tube None of these Basket type Calendria ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Graetz number > 100 Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature Graetz number > 100 Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Exit fluid temperature < wall temperature 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. None of these Elastic Viscous Inertial None of these Elastic Viscous Inertial ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted When both the steam and the tube are clean Only in presence of air An oily surface None of these When both the steam and the tube are clean Only in presence of air An oily surface None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of floating head in a heat exchanger is to Provide support for tubes Avoid buckling of tubes Decrease the pressure drop Facilitate its lengthening, if needed Provide support for tubes Avoid buckling of tubes Decrease the pressure drop Facilitate its lengthening, if needed ANSWER DOWNLOAD EXAMIANS APP
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