Heat Transfer Thermal diffusivity of a material All of these Has the unit m² /sec Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity All of these Has the unit m² /sec Is defined as K/ρ . Cp Is the ratio of thermal conductivity to thermal capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is generally considered as opaque surface towards radiations? Both solids & liquids Solids Gases Liquids Both solids & liquids Solids Gases Liquids ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) √d d2 d d1.5 √d d2 d d1.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Evaporation by thermocompression results in the None of these Both A and B Realisation of multiple effect economy in a single effect Saving of steam None of these Both A and B Realisation of multiple effect economy in a single effect Saving of steam ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As the difference between the wall temperature and bulk temperature increases, the boiling heat transfer co-efficient goes through a maximum. continues to increase goes through a minimum continues to decrease goes through a maximum. continues to increase goes through a minimum continues to decrease ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat waves Travel in straight line Can be reflected by a mirror Both B and C Can not pass through vacuum Travel in straight line Can be reflected by a mirror Both B and C Can not pass through vacuum ANSWER DOWNLOAD EXAMIANS APP
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