Heat Transfer Operations Mock Test 10

1. If the coolant is not in multiple-phase, and if the overall heat transfer coefficient is constant, then the assumptions underlying the logarithmic mean temperature difference (LMTD) __________

2. ____________ is an unstable condition in a condenser when the vapour flow is such that the downward flow of condensate is interrupted and held up.

3. What is the name of the process occurring represented by the line 3-4 in the given refrigeration cycle?

4. As thermal conductivity kF increases, the heat transfer coefficient ________

5. Which one of the following plot correctly represents the temperature-enthalpy relationship of a mixture?

6. What is the expression for total heat transferred in a condenser of length L and diameter D?

7. Evaporative condensers are used in places where water is _________

8. With condensation occurring in fluid mixtures which might be having a non-condensing gas, the variation of the equilibrium temperature with enthalpy can be a _________ function.

9. Shell and coil type condensers have a capacity at around ________

10. A possible configuration for low pressure drop is the ______________