Heat Transfer Dietus-Boelter equation used for the determination of heat transfer co-efficient is valid none of the listed here when Grashhoff number is very important for fluids in tubulent flow for fluids in laminar flow none of the listed here when Grashhoff number is very important for fluids in tubulent flow for fluids in laminar flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fouling factor Does not provide a safety factor for design Is a dimensionless quantity None of these Accounts for additional resistances to heat flow Does not provide a safety factor for design Is a dimensionless quantity None of these Accounts for additional resistances to heat flow ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter) 0.4 D 0.2 D 0.3 D 0.5 D 0.4 D 0.2 D 0.3 D 0.5 D ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Finned tube heat exchangers are used for smaller heat load facilitate very large temperature drop through tube wall give larger area per tube use metal fins of low thermal conductivity are used for smaller heat load facilitate very large temperature drop through tube wall give larger area per tube use metal fins of low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is 34.4 25 26.8 40.5 34.4 25 26.8 40.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Removal of __________ heat is involved in the condensation of a vapor under saturated conditions. Super Both B & C Sensible Latent Super Both B & C Sensible Latent ANSWER DOWNLOAD EXAMIANS APP
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