Heat Transfer A hot body will radiate heat most rapidly, if its surface is Black & polished White & polished Black & rough White & rough Black & polished White & polished Black & rough White & rough ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 20 1 10 30 20 1 10 30 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of providing expansion bellows in the shell of tubular exchanger is to Account for the uneven expansion of shell and tube bundles Increase the heating load Facilitate increase of shell length, if needed Impart structural strength Account for the uneven expansion of shell and tube bundles Increase the heating load Facilitate increase of shell length, if needed Impart structural strength ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ? Sphere All of these Cube Plate Sphere All of these Cube Plate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to 2f f/2 f/4 f 2f f/2 f/4 f ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The actual temperature drop across the heating surface of an evaporator depends on the Liquid depth over the heating surface Pressure difference between the steam chest and the vapor space above the boiling liquid All of these Solution being evaporated Liquid depth over the heating surface Pressure difference between the steam chest and the vapor space above the boiling liquid All of these Solution being evaporated ANSWER DOWNLOAD EXAMIANS APP