Heat Transfer Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) d d1.5 d2 √d d d1.5 d2 √d ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For an ideal black body Reflectivity = 1 Absorptivity = 1 Transmissivity = 1 Emissivity = 0 Reflectivity = 1 Absorptivity = 1 Transmissivity = 1 Emissivity = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. 10 to 100 1 to 100 0.5 to 50 100 to 1000 10 to 100 1 to 100 0.5 to 50 100 to 1000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Froude number Nusselt number Kutateladze number Lewis relationship Froude number Nusselt number Kutateladze number Lewis relationship ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Increases May increase or decrease; depends on the feed Is not affected Decreases Increases May increase or decrease; depends on the feed Is not affected Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) ∝ 1/t Independent of 't' ∝ √t ∝ t ∝ 1/t Independent of 't' ∝ √t ∝ t ANSWER DOWNLOAD EXAMIANS APP
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