Heat Transfer A perfect black body is a perfect __________ of radiation absorber emitter Both emitter & absorber none of the listed here absorber emitter Both emitter & absorber none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Critical value of the __________ number governs the transition from laminar to turbulent flow in free convection heat transfer. Reynolds Both A & B Grashoff Prandtl & Grashoff Reynolds Both A & B Grashoff Prandtl & Grashoff ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its None of these Dense structure High proportion of air space High specific heat None of these Dense structure High proportion of air space High specific heat ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m².s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m²/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is 6000 2000 5000 4000 6000 2000 5000 4000 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in Increased economy Lower capacity No effect on economy Decreased economy Increased economy Lower capacity No effect on economy Decreased economy ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In the free convection regime of pool boiling, the heat flux is proportional to Δt1/2 Δt2 Δt5/4 Δt Δt1/2 Δt2 Δt5/4 Δt ANSWER DOWNLOAD EXAMIANS APP
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