Heat Transfer A perfect black body is a perfect __________ of radiation none of the listed here emitter absorber Both emitter & absorber none of the listed here emitter absorber Both emitter & absorber ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An equipment which converts the latent or sensible heat of one fluid into the latent heat of vaporisation of another, is called a boiler heat exchanger regenerator recuperator boiler heat exchanger regenerator recuperator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of an ideal solution Decreases rapidly with temperature rise In independent of pressure Both B and C Increases rapidly with temperature rise Decreases rapidly with temperature rise In independent of pressure Both B and C Increases rapidly with temperature rise ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The overall heat transfer co-efficient for a shell and tube heat exchanger for clean surfaces is U0 = 400 W/m².K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m².K. The overall heat transfer co-efficient at this time is 333W/m².K 894W/m².K 287 W/m².K 1200W/m².K 333W/m².K 894W/m².K 287 W/m².K 1200W/m².K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The inside heat transfer co-efficient in case of turbulent flow of liquid in the tube side in a 1-2 shell and tube heat exchanger is increased by __________ times, when the number of tube passes is increased to 8. 20.4 20.8 40.4 40.8 20.4 20.8 40.4 40.8 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids? When fluid flows past a smooth surface At low velocity At high fluid velocity None of these When fluid flows past a smooth surface At low velocity At high fluid velocity None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS