If all the conditions and dimensions are same, then the ratio of velocity through the tubes of a double pass heat exchanger to that through the single pass heat exchanger is_________________?

Related Mcqs:

For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is______________?

A. Nu = 0.023 Re0.8. Pr0.4 B. Nu = (π/2) Gz C. Nu = (2/π) Gz D. Nu = 2Gz0.5...

jH factor for heat transfer depends upon the ____________ number?

A. Biot B. Nusselt C. Reynolds D. Prandtl...

The maximum heat transfer co-efficient from steam heating will be attained when the steam is_________________?

A. Supersaturated B. Saturated C. Wet D. None of these...

Out of the following four assumptions used in the derivation of the equation for LMTD [LMTD = (Δt1 – Δt2)/ln(Δt1/Δt2)], which one is subject to the largest deviation in practice ?

A. Constant overall heat transfer co-efficient. B. Constant rate of fluid flow C. Constant specific heat D. No partial phase change in the system...

Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats ?

A. P and Q B. P and R C. P and S D. R and S...