Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l010 3 x l05 3 x l012 3 x l08 3 x l010 3 x l05 3 x l012 3 x l08 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) h0/2K K/h0 2K/h0 h0/K h0/2K K/h0 2K/h0 h0/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the None of these Temperature gradient of the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall Heat flux at the wall to that across the entire pipe None of these Temperature gradient of the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall Heat flux at the wall to that across the entire pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Total heat transfer area of all the effects is -less than that in a single effect evaporator system Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Total heat transfer area of all the effects is -less than that in a single effect evaporator system ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a liquid-liquid heat exchanger, for the same process temperature, the ratio of the LMTD in parallel flow to the LMTD in counter flow is always ∞ > 1 < 1 1 ∞ > 1 < 1 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law. Linear Logarithmic Parabolic Hyperbolic Linear Logarithmic Parabolic Hyperbolic ANSWER DOWNLOAD EXAMIANS APP
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