The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by__________________?

Chemical Engineering Mcqs

The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by__________________?

(A)  Painting the surface black

(B)  Painting the surface white (with aluminium paint)

(C)  Giving the surface a mirror finish

(D)  Roughening the surface

Submitted By :Ali Uppal

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