1. Minimum recommended baffle spacing in a shell and tube heat exchanger is about (where, D = shell diameter)
2. LMTD can't be used as such without a correction factor for the
3. Economy of an evaporator is influenced by the
4. In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred
5. The advantage of backward feed multiple effect evaporators over forward feed units is that
6. The ratio of momentum diffusivity to thermal diffusivity is the __________ number.
7. The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is
8. Water always boils when its
9. Which one gives the monochromatic emissive power for black body radiation?
10. If heat transfer rate varies with the time, it is termed as
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