Heat Transfer Viscosity of gases __________ with increase in temperature. Decrease slowly Increase slowly Remain unaffected Increase very rapidly Decrease slowly Increase slowly Remain unaffected Increase very rapidly 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 A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Total heat transfer area of all the effects is -less than that in a single effect evaporator system Heat transfer co-efficient in a single effect is much lower than that in any effect in a multieffect system Boiling point elevation in a single effect system is much higher than that in any effect in a multieffect system Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect Total heat transfer area of all the effects is -less than that in a single effect evaporator system ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number for most of dry gases is about 0.001 70 0.72 150 0.001 70 0.72 150 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because There is no mist formation Heat transfer co-efficient are high Cost of equipment is lower There is no risk of contamination There is no mist formation Heat transfer co-efficient are high Cost of equipment is lower There is no risk of contamination ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Kirchoff s law applies to __________ radiation None of the listed here total Both total & monochromatic monochromatic None of the listed here total Both total & monochromatic monochromatic ANSWER DOWNLOAD EXAMIANS APP
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