Heat Transfer What is the emissivity of a black body? 0.5 0.9 1 0.5 0.9 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is Thin walled having the value of Ao Ai/< 2 Having the value of Ao/Ai > 2 Thick walled Both B and C Thin walled having the value of Ao Ai/< 2 Having the value of Ao/Ai > 2 Thick walled Both B and C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reynold's analogy states that (where, St = Stanton number f = friction factor) St = f/4 St = f/2 St = 4f St = f1/2 St = f/4 St = f/2 St = 4f St = f1/2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing a 'catchall' in the vapor line of an evaporator is to Arrest the entrained liquid Regulate the vapor flow Vent the non-condensible gases Create vacuum Arrest the entrained liquid Regulate the vapor flow Vent the non-condensible gases Create vacuum ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Reason for operating an evaporator in multiple effect is to secure Increased steam economy Increased capacity Decreased steam consumption Both A and B Increased steam economy Increased capacity Decreased steam consumption Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of a solution of NaOH Is almost independent of pressure Both B and C Is almost independent of temperature Increases rapidly with temperature rise Is almost independent of pressure Both B and C Is almost independent of temperature Increases rapidly with temperature rise ANSWER DOWNLOAD EXAMIANS APP
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