Heat Transfer Double pipe heat exchangers are used when heat transfer area required is very high because it occupies less floor area because it is less costly when heat transfer area required is very low when heat transfer area required is very high because it occupies less floor area because it is less costly when heat transfer area required is very low ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, Less surface area is required for a given heat transfer rate More surface area is required for a given heat transfer rate Both A and B LMTD is greater Less surface area is required for a given heat transfer rate More surface area is required for a given heat transfer rate Both A and B LMTD is greater ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Corrosiveness of steam condensate is due to the presence of CO₂ Both A & B Dissolved O₂ Neither A nor B CO₂ Both A & B Dissolved O₂ Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has maximum thermal conductivity? Tar Iron Coal Nitrogen Tar Iron Coal Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water is normally used as a coolant in the heat exchange equipments mainly because ofits Abundance & high heat capacity Low density Low viscosity High fluidity Abundance & high heat capacity Low density Low viscosity High fluidity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. None of these Backward feed Vacuum High pressure None of these Backward feed Vacuum High pressure ANSWER DOWNLOAD EXAMIANS APP
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