Heat Transfer At what value of Prandtl number, conduction is negligible in the turbulent core of a fluid flowing through a heated pipe? > 0.6 < 0.5 0.5 < 0.1 > 0.6 < 0.5 0.5 < 0.1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law. Linear Hyperbolic Parabolic Logarithmic Linear Hyperbolic Parabolic Logarithmic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The most conducive surface for dropwise condensation to occur is the __________ surface. Smooth Oily Coated Glazed & polished Smooth Oily Coated Glazed & polished ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 15 min 44 min 22 min 51 min 15 min 44 min 22 min 51 min ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vibrations in the tubes of a shell and tube heat exchanger is induced due to the Vibrations transmitted through piping and/or supports due to external reasons Flow of fluid on the tube and shell sides All of these Oscillations in the flow of shell/tube sides fluid Vibrations transmitted through piping and/or supports due to external reasons Flow of fluid on the tube and shell sides All of these Oscillations in the flow of shell/tube sides fluid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A hollow sphere and a solid sphere of the same material and equal radii are heated to the same temperature. In this case, Both will absorb equal amount of radiation from the surrounding in the beginning The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both B & C Both the spheres will emit equal amount of radiation per unit time in the beginning Both will absorb equal amount of radiation from the surrounding in the beginning The cooling rate will be the same for the two spheres and hence the two spheres will have equal temperatures at any instant Both B & C Both the spheres will emit equal amount of radiation per unit time in the beginning ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS