engineering recuitment UPCL AE (E&M) 2021 Mock Test Heat Transfer Convection Free Convection

Air at 20°C blows over a plate of 50 cm × 75 cm maintained at 250°C. If the convection heat transfer coefficient is 25 W/m²°C, the heat transfer rate is

1

2.156 kW

2

2156 kW

3

215.6 kW

4

21.56 kW

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