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1349. What is the emissivity of a black body?

September 7, 2025 by Admin

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✅ The correct answer is option A.

Categories Chemical Engineering, Engineering, Heat Transfer MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Heat Transfer MCQs

1347. 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

1351. What is the steam economy in case of a single effect evaporator system?

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