Which condition would most likely cause a coupon used for corrosion testing to lose weight?

Which condition would most likely cause a coupon used for corrosion testing to lose weight?

• A. Scaling
• B. Corrosive water
• C. Water hammer
• D. Water leak

Answer: (B)

The condition most likely to cause a coupon used for corrosion testing to lose weight is the presence of corrosive water. Corrosive water can lead to the dissolution of metal or protective layers on the coupon's surface, resulting in significant material loss over time. This process is often exacerbated by factors such as acidity, chlorides, or dissolved gases, which can accelerate corrosion rates. When water is classified as corrosive, it indicates that it has the potential to react chemically with the materials in the water distribution system, leading to pitting, uniform corrosion, or other forms of deterioration. As the metal coupon interacts with the corrosive water, the surface area that is corroded will gradually diminish, leading to a measurable loss in weight. In contrast, conditions like scaling tend to create deposits on the surface of the coupon rather than causing loss. Water hammer refers to a pressure surge that occurs when fluid in motion is forced to stop or change direction suddenly, which does not directly influence the coupon's weight through corrosion. Lastly, a water leak may suggest a loss of water, but it doesn't necessarily correlate with the chemical reactions occurring at the coupon that would result in weight loss. Thus, corrosive water stands out as the primary condition leading to weight loss

The condition most likely to cause a coupon used for corrosion testing to lose weight is the presence of corrosive water. Corrosive water can lead to the dissolution of metal or protective layers on the coupon's surface, resulting in significant material loss over time. This process is often exacerbated by factors such as acidity, chlorides, or dissolved gases, which can accelerate corrosion rates.

When water is classified as corrosive, it indicates that it has the potential to react chemically with the materials in the water distribution system, leading to pitting, uniform corrosion, or other forms of deterioration. As the metal coupon interacts with the corrosive water, the surface area that is corroded will gradually diminish, leading to a measurable loss in weight.

In contrast, conditions like scaling tend to create deposits on the surface of the coupon rather than causing loss. Water hammer refers to a pressure surge that occurs when fluid in motion is forced to stop or change direction suddenly, which does not directly influence the coupon's weight through corrosion. Lastly, a water leak may suggest a loss of water, but it doesn't necessarily correlate with the chemical reactions occurring at the coupon that would result in weight loss. Thus, corrosive water stands out as the primary condition leading to weight loss