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) K/h0 h0/2K 2K/h0 h0/K K/h0 h0/2K 2K/h0 h0/K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid Its evaporation loss Uneconomic LMTD Excessive corrosion Decrease in heat exchanger efficiency Its evaporation loss Uneconomic LMTD Excessive corrosion Decrease in heat exchanger efficiency ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place Between two bodies in physical contact with each other Between two bodies not in physical contact with each other From one part of a body to the another part of the same body Both B & C Between two bodies in physical contact with each other Between two bodies not in physical contact with each other From one part of a body to the another part of the same body Both B & C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number for full developed, laminar, constant property flow in a pipe at uniform heat flux is 83 0.72 4.364 18 83 0.72 4.364 18 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 Trap is used to remove __________ from steam pipe lines. None of these Non-condensables Condensate Steam None of these Non-condensables Condensate Steam ANSWER DOWNLOAD EXAMIANS APP
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