Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Increases May increase or decrease; depends on the feed Is not affected Decreases Increases May increase or decrease; depends on the feed Is not affected Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the Average temperature of the fin Surrounding temperature Constant temperature equal to that of the base Temperature of the fin end Average temperature of the fin Surrounding temperature Constant temperature equal to that of the base Temperature of the fin end 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 0.85 0.45 0.55 0.35 0.85 0.45 0.55 0.35 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For specified tube outside diameter, higher BWG means higher tube thickness weight per unit length none of the listed here cross-sectional area tube thickness weight per unit length none of the listed here cross-sectional area ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 1 20 30 10 1 20 30 10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer. Reynolds Biot Grashoff Stantan Reynolds Biot Grashoff Stantan ANSWER DOWNLOAD EXAMIANS APP
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