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 40.4 40.8 20.8 20.4 40.4 40.8 20.8 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reynold's analogy states that (where, St = Stanton number f = friction factor) St = 4f St = f/2 St = f1/2 St = f/4 St = 4f St = f/2 St = f1/2 St = f/4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. Increases Remains constant May increase or decrease ; depends on the material Decreases Increases Remains constant May increase or decrease ; depends on the material Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Forced circulation evaporators are useful for the concentration of viscous, salting and scale forming liquors. Which of the following is a forced circulation evaporator? Long vertical evaporator Agitated film evaporator Calenderia vertical tube evaporator Horizontal tube evaporator Long vertical evaporator Agitated film evaporator Calenderia vertical tube evaporator Horizontal tube evaporator ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Low density Partial ionisation High viscosity Dense structure Low density Partial ionisation High viscosity Dense structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The critical radius of insulation for cylindrical pipe is (where, hi = heat transfer coefficient at inside of the pipe ) 2hi/K hi/K K/h0 2K/h0 2hi/K hi/K K/h0 2K/h0 ANSWER DOWNLOAD EXAMIANS APP
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