Heat Transfer Circulation pump is located below the evaporater to Avoid frequent priming Create more suction head Avoid cavitation None of these Avoid frequent priming Create more suction head Avoid cavitation None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, More surface area is required for a given heat transfer rate Both A and B Less surface area is required for a given heat transfer rate LMTD is greater More surface area is required for a given heat transfer rate Both A and B Less surface area is required for a given heat transfer rate LMTD is greater ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? Yellow paint Grey paint Black paint White paint Yellow paint Grey paint Black paint White paint ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.35 0.55 0.45 0.85 0.35 0.55 0.45 0.85 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted None of these When both the steam and the tube are clean An oily surface Only in presence of air None of these When both the steam and the tube are clean An oily surface Only in presence of air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m².s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m²/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is 2000 4000 5000 6000 2000 4000 5000 6000 ANSWER DOWNLOAD EXAMIANS APP
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