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