Heat Transfer Unsteady state heat conduction occurs, when Heat flows in one direction only Temperature distribution is dependent on time Three dimensional heat flow is concerned Temperature distribution is independent of time Heat flows in one direction only Temperature distribution is dependent on time Three dimensional heat flow is concerned Temperature distribution is independent of time ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which type of heat exchanger is preferred for heavy heat loads ? Double pipe Series and parallel set of shell and tube None of the listed here Plate fine Double pipe Series and parallel set of shell and tube None of the listed here Plate fine ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, Less surface area is required for a given heat transfer rate LMTD is greater More surface area is required for a given heat transfer rate Both A and B Less surface area is required for a given heat transfer rate LMTD is greater More surface area is required for a given heat transfer rate Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by Eddies current Conduction None of these Convection Eddies current Conduction None of these Convection ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer An insulator should have Less resistance to heat flow High thermal conductivity Low thermal conductivity A porous structure Less resistance to heat flow High thermal conductivity Low thermal conductivity A porous structure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is 63.8 48.7 71.2 77.2 63.8 48.7 71.2 77.2 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS