Presence of a non-condensing gas in a condensing vapour___________________?

Related Mcqs:

Which of the following is the most widely used heat insulating material for pipelines carrying steam ?

A. Tar dolomite bricks followed by asbestos B. Fireclay refractory followed by aluminium sheet C. Cotton followed by aluminium foil D. 85% magnesia cement and glass wool...

Stefan’s block body radiation law can also be derived from ______________ law?

A. Kirchoff’s B. Planck’s C. Fourier’s D. None of these...

For large heat transfer area requirement, shell and tube heat exchanger is preferred, because it________________?

A. Occupies smaller space B. Is more economical C. Is easy to operate and maintain D. All A., B. and C....

Multipass heat exchangers are used______________________?

A. Because of simplicity of fabrication B. For low heat load C. To obtain higher heat transfer co-efficient and shorter tube D. To reduce the pressure drop...

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...