[amp_mcq option1=”Brick sewer” option2=”Cast iron sewer” option3=”R.C. sewer” option4=”Lead sewer” correct=”option3″]<\/p>\n
The correct answer is C. R.C. sewer.<\/p>\n
Brick sewers are susceptible to sulfide corrosion, as the sulfides in the wastewater can react with the iron in the bricks to form iron sulfide. This can cause the bricks to crumble and break down, leading to leaks and other problems.<\/p>\n
Cast iron sewers are also susceptible to sulfide corrosion, but to a lesser extent than brick sewers. This is because the cast iron is a more dense material, which makes it more resistant to the effects of the sulfides. However, cast iron sewers can still corrode over time, and they may need to be replaced after 50-100 years.<\/p>\n
R.C. sewers are made of reinforced concrete, which is a very durable material that is resistant to sulfide corrosion. R.C. sewers can last for 100 years or more without needing to be replaced.<\/p>\n
Lead sewers are also resistant to sulfide corrosion, but they are not as durable as R.C. sewers. Lead sewers can last for 50-100 years, but they are more likely to be damaged by other factors, such as roots or heavy traffic.<\/p>\n
In conclusion, the sewer that resists sulfide corrosion is R.C. sewer.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”Brick sewer” option2=”Cast iron sewer” option3=”R.C. sewer” option4=”Lead sewer” correct=”option3″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[650],"tags":[],"class_list":["post-7681","post","type-post","status-publish","format-standard","hentry","category-waste-water-engineering","no-featured-image-padding"],"yoast_head":"\n