Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Arrest the entrained liquid Regulate the vapor flow Vent the non-condensible gases Create vacuum Arrest the entrained liquid Regulate the vapor flow Vent the non-condensible gases Create vacuum 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. Inertial Elastic Viscous None of these Inertial Elastic Viscous None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m².°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be Equal to that of the uninsulated steam pipe Greater than that for uninsulated steam pipe Less than the steam pipe with 5 cms insulation Less than that of the uninsulated steam pipe Equal to that of the uninsulated steam pipe Greater than that for uninsulated steam pipe Less than the steam pipe with 5 cms insulation Less than that of the uninsulated steam pipe ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer It is not preferable to use superheated steam in evaporators, because of its very low film co-efficient high pressure none of the listed here high temperature low film co-efficient high pressure none of the listed here high temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Value of Prandtl number for water ranges from 100 to 500 1000 to 2000 5 to 10 L to 2 100 to 500 1000 to 2000 5 to 10 L to 2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube type heat exchanger, the floating tube bundle heat arrangement is used In high range of temperature differences In low range of temperature differences To prevent corrosion of the tube bundles Because of its low cost In high range of temperature differences In low range of temperature differences To prevent corrosion of the tube bundles Because of its low cost ANSWER DOWNLOAD EXAMIANS APP
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