Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube 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 Graetz number > 100 Exit fluid temperature = wall temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer Remains unaffected Decreases Increases exponentially Increases Remains unaffected Decreases Increases exponentially Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. May increase or decrease; depends on the gas Increases Remains unchanged Decreases May increase or decrease; depends on the gas Increases Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is best heated with steam in a heat exchanger of shell and tube type double pipe type with fin on steam side double pipe type with fin on air side plate type shell and tube type double pipe type with fin on steam side double pipe type with fin on air side plate type ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a multiple effect evaporator, the effect of boiling point elevation is to reduce the capacity all of the listed here reduce the economy increase the economy reduce the capacity all of the listed here reduce the economy increase the economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is More Some Either more or less ; depends on the nature of vapor Less More Some Either more or less ; depends on the nature of vapor Less ANSWER DOWNLOAD EXAMIANS APP
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