Heat Transfer The main purpose of providing fins on heat transfer surface is to increase the Heat transfer co-efficient Heat transfer area Mechanical strength of the equipment Temperature gradient Heat transfer co-efficient Heat transfer area Mechanical strength of the equipment Temperature gradient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 44 min 15 min 51 min 22 min 44 min 15 min 51 min 22 min ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Intermittant tube cleaning is possible to be done in case of a __________ evaporator. Basket type Horizontal tube Calendria None of these Basket type Horizontal tube Calendria None of these 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 Parabolic Logarithmic Hyperbolic Linear Parabolic Logarithmic Hyperbolic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the most suitable for the concentration of foamy & frothy liquors? Agitated film evaporator Open pan evaporator None of these Long tube vertical evaporator Agitated film evaporator Open pan evaporator None of these Long tube vertical evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of momentum diffusivity to thermal diffusivity is the __________ number. Grashoff Prandtl Nusselt Stanton Grashoff Prandtl Nusselt Stanton ANSWER DOWNLOAD EXAMIANS APP
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