Heat Transfer A tank painted with which of the following coloured paints, would heat up maximum by radiation from sun? Grey paint Black paint White paint Yellow paint Grey paint Black paint White paint Yellow paint ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body is called grey if the monochromatic emissivity of the body is Unity Zero Same for all wavelengths Different for all wavelengths Unity Zero Same for all wavelengths Different for all wavelengths ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred By heating an intermediate material (like chequor bricks) and then heating the air from this hot material Through a metallic wall None of these By direct contact of hot flue gas with air By heating an intermediate material (like chequor bricks) and then heating the air from this hot material Through a metallic wall None of these By direct contact of hot flue gas with air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is best heated with steam in a heat exchanger of double pipe type with fin on steam side plate type shell and tube type double pipe type with fin on air side double pipe type with fin on steam side plate type shell and tube type double pipe type with fin on air side ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a fluid flowing in an annulus space, the wetted perimeter for heat transfer and pressure drop are Different Never different Linearly related Same Different Never different Linearly related Same ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A BTU/hr.ft.2 °F is equal to 4.88 kcal/hr. m.2°C None of these 1 kcal/hr. m²°C 1 kcal/hr. m².°K 4.88 kcal/hr. m.2°C None of these 1 kcal/hr. m²°C 1 kcal/hr. m².°K ANSWER DOWNLOAD EXAMIANS APP
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