Heat Transfer The interchange factor for radiation heat transfer from surface 'x' to surface 'y' in case of an infinite parallel planes with emis-sivities εx & εy is given by (εx + εy)/(εx + εy - εx . εy) Εx . εy 1/εx + 1/εy Εx + εy (εx + εy)/(εx + εy - εx . εy) Εx . εy 1/εx + 1/εy Εx + εy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation of steam on cooling surface is promoted None of these An oily surface Only in presence of air When both the steam and the tube are clean None of these An oily surface Only in presence of air When both the steam and the tube are clean ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD can't be used as such without a correction factor for the All of these Baffled heat exchanger Multipass heat exchanger Condensation of mixed vapour in a condenser All of these Baffled heat exchanger Multipass heat exchanger Condensation of mixed vapour in a condenser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats P and Q R and S P and S P and R P and Q R and S P and S P and R ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number. Grashoff Stantan Brinkman Condensation Grashoff Stantan Brinkman Condensation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam side heat transfer co-efficient in an evaporator is in the range of __________ kcal/hr.m²°C. 18537 5000-15000 1000-1500 100-500 18537 5000-15000 1000-1500 100-500 ANSWER DOWNLOAD EXAMIANS APP
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