Heat Transfer Radiator of an automobile engine is a __________ type of heat exchanger. Cross-current Co-current Counter-current Direct contact Cross-current Co-current Counter-current Direct contact ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid Remains unchanged Decreases Increases Increases or decreases depending on number of shell passes Remains unchanged Decreases Increases Increases or decreases depending on number of shell passes ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l08 3 x l05 3 x l012 3 x l010 3 x l08 3 x l05 3 x l012 3 x l010 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Three solid objects of the same material and of equal mass-a sphere, a cylinder (length = diameter) and a cube are at 500°C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change in temperature is the smallest for Equal for all the three Cylinder Cube Sphere Equal for all the three Cylinder Cube Sphere ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns. 0.38-0.78 100-1000 5-50 0.5-50 0.38-0.78 100-1000 5-50 0.5-50 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, putting a longitudinal baffle across the shell, forces the shell side fluid to pass __________ through the heat exchanger. Once Four times Twice Thrice Once Four times Twice Thrice ANSWER DOWNLOAD EXAMIANS APP
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