Heat Transfer In a heat exchanger, floating head is provided to increase log mean temperature gradient increase the heat transfer area relieve stresses caused by thermal expansion facilitate cleaning of the exchanger increase log mean temperature gradient increase the heat transfer area relieve stresses caused by thermal expansion facilitate cleaning of the exchanger ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its High viscosity Low density Partial ionisation Dense structure High viscosity Low density Partial ionisation Dense structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Planck's distribution law is valid for __________ bodies black all of the listed here white coloured black all of the listed here white coloured ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoffs law. Wavelength of radiation None of these Nature of the body Temperature of the body Wavelength of radiation None of these Nature of the body Temperature of the body ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1000 Kg of liquid at 30°C in a well stirred vessel has to be heated to 120°C, using immersed coils carrying condensing steam at 150°C. The area of the steam coils is 1.2 m² and the overall heat transfer co-efficient to the liquid is 1500 W/m².°C. Assuming negligible heat loss to the surrounding and specific heat capacity of the liquid to be 4 kJ/kg.°C, the time taken for the liquid to reach desired temperature will be 22 min 51 min 44 min 15 min 22 min 51 min 44 min 15 min 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 Impart structural strength Increase the heating load Facilitate increase of shell length, if needed Account for the uneven expansion of shell and tube bundles Impart structural strength Increase the heating load Facilitate increase of shell length, if needed ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS