Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. >10 Either B or C, depends on the mass of the body 10 >10 Either B or C, depends on the mass of the body 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Correction is applied to LMTD for __________ flow. Counter Cross None of these Parallel Counter Cross None of these Parallel ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a multiple effect evaporator, the effect of boiling point elevation is to all of the listed here increase the economy reduce the economy reduce the capacity all of the listed here increase the economy reduce the economy reduce the capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to 2f f/2 f f/4 2f f/2 f f/4 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 Cylinder Equal for all the three Sphere Cube Cylinder Equal for all the three Sphere Cube ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A steel sphere of radius 0.1 m at 400°K is immersed in an oil at 300°K. If the centre of the sphere reaches 350°K in 20 minutes, how long will it take for a 0.05 m radius steel sphere to reach the same temperature (at the centre) under identical conditions ? Assume that the conductive heat transfer co-efficient is infinitely large. 5 minutes 20 minutes 40 minutes 10 minutes 5 minutes 20 minutes 40 minutes 10 minutes ANSWER DOWNLOAD EXAMIANS APP
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