Heat Transfer Heat exchangers operating, when the asymptotic range is reached, Results in abruptly increased velocity Provide very large heat transfer co-efficient None of these Results in making part of the heating surface inactive Results in abruptly increased velocity Provide very large heat transfer co-efficient None of these Results in making part of the heating surface inactive ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the reciprocal of Thermal diffusivity x Mass diffusivity Mass diffusivity x Momentum diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum Thermal diffusivity x Mass diffusivity Mass diffusivity x Momentum diffusivity Thermal diffusivity/Momentum diffusivity Thermal diffusivity x Momentum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ chart is known as transient heat conduction chart. Mollier's Dirhing's Cox Heisler's Mollier's Dirhing's Cox Heisler's ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water always boils when its Saturated vapour pressure is less than the atmospheric pressure Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure equals the external pressure on its surface Saturated vapour pressure is less than the atmospheric pressure Temperature reaches 100° C Vapour pressure equals 76 cm of Hg Saturated vapour pressure equals the external pressure on its surface ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal diffusivity of a material Is the ratio of thermal conductivity to thermal capacity Is defined as K/ρ . Cp All of these Has the unit m² /sec Is the ratio of thermal conductivity to thermal capacity Is defined as K/ρ . Cp All of these Has the unit m² /sec ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Tubes are held between top and bottom tube sheets in Calenderia type evaporator by keeping The top tube sheet floating and bottom tube sheet fixed Both the tube sheets floating Both the tube sheets fixed The top tube sheet fixed and the bottom tube-sheet floating The top tube sheet floating and bottom tube sheet fixed Both the tube sheets floating Both the tube sheets fixed The top tube sheet fixed and the bottom tube-sheet floating ANSWER DOWNLOAD EXAMIANS APP
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