Heat Transfer In a parallel flow heat exchanger, if the outlet temperature of hot and cold fluids are the same, then the log mean temperature difference (LMTD) is Maximum Zero Minimum Infinity Maximum Zero Minimum Infinity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Sensible heat of hot industrial flue gases can not be recovered by a/an Regenerator Ceramic recuperator Economiser None of these Regenerator Ceramic recuperator Economiser None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? Square pitch None of these Triangular pitch Diagonal square pitch Square pitch None of these Triangular pitch Diagonal square pitch ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a backward feed multiple effect evaporator No pumps are required between successive effects None of these Feed is introduced in the first effect Feed flows from low pressure to high pressure No pumps are required between successive effects None of these Feed is introduced in the first effect Feed flows from low pressure to high pressure 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 2K/h0 h0/K K/h0 h0/2K 2K/h0 h0/K K/h0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (D)0.2 (D)-1.8 (D)-0.2 (D)1.8 (D)0.2 (D)-1.8 (D)-0.2 (D)1.8 ANSWER DOWNLOAD EXAMIANS APP
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