Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = μ cp/k NN = hl/k NN = ρ V l /μ NN = V²/t.cp NN = μ cp/k NN = hl/k NN = ρ V l /μ NN = V²/t.cp ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor) P.F. - 1 1 - B. P.F. 1/ B.P.F. 1 + B.P.F. P.F. - 1 1 - B. P.F. 1/ B.P.F. 1 + B.P.F. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The undesirable property of a refrigerant is Non-flammable Non-toxic High boiling point Non-explosive Non-flammable Non-toxic High boiling point Non-explosive ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The desirable property of a refrigerant is All of these Low boiling point High critical temperature High latent heat of vaporisation All of these Low boiling point High critical temperature High latent heat of vaporisation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating pressure for refrigerating units using R-12 as a refrigerant is 8 bar 30 bar 15 bar 2 bar 8 bar 30 bar 15 bar 2 bar ANSWER DOWNLOAD EXAMIANS APP
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