What is the accumulation of deposits on the surfaces of processing equipment?
A. Scale
B. Erosion
C. Corrosion
D. Fouling
A. Incorrect. Scale occurs as a result of dissolved solids depositing on the inside surfaces of hot equipment.
B. Incorrect. Erosion is the mechanical degradation or wearing away of tower components.
C. Incorrect. Corrosion is the deterioration of a metal by a chemical reaction.
D. Correct. Fouling is the accumulation of deposits (such as sand, silt, scale, sludge, fungi, and algae) on the surfaces of processing equipment.
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