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. Stantan Grashoff Condensation Brinkman Stantan Grashoff Condensation Brinkman ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The sum of reflectivity and absorptivity for an opaque body is equal to 0.5 2 1 0.5 2 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place Between two bodies in physical contact with each other From one part of a body to the another part of the same body Both B & C Between two bodies not in physical contact with each other Between two bodies in physical contact with each other From one part of a body to the another part of the same body Both B & C Between two bodies not in physical contact with each other ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Partial ionisation High viscosity Dense structure Low density Partial ionisation High viscosity Dense structure Low density ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of __________ boiling, the bubbles formed on a submerged hot surface get absorbed in the mass of the liquid. Pool None of these Nucleate Low pressure Pool None of these Nucleate Low pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For concentrating an aqueous solution of a material like anhydrous Na₂SO₄, whose solubility decreases with rise in temperature, the most suitable evaporator is a __________ evaporator. Vacuum None of these Backward feed High pressure Vacuum None of these Backward feed High pressure ANSWER DOWNLOAD EXAMIANS APP
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