API 571 : 4.3.2 : Atmospheric Corrosion

Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.
Learn about Our Editorial Process
| By Hareesh K
H
Hareesh K
Community Contributor
Quizzes Created: 1 | Total Attempts: 112
Questions: 5 | Attempts: 112

SettingsSettingsSettings
API 571 : 4.3.2 : Atmospheric Corrosion - Quiz


Questions and Answers
  • 1. 

    Marine environments can be very corrosive. What is the approximate corrosion rate in such environments?

    • A.

      20mpy

    • B.

      1mpy

    • C.

      No Corrosion

    • D.

      None of the above

    Correct Answer
    A. 20mpy
    Explanation
    Marine environments are known to be highly corrosive due to the presence of saltwater and various other corrosive agents. The corrosion rate in such environments is typically high, resulting in the degradation of metal structures and equipment. The approximate corrosion rate of 20mpy (mils per year) suggests that metal surfaces in marine environments can experience significant corrosion, leading to potential damage and the need for regular maintenance and corrosion protection measures.

    Rate this question:

  • 2. 

    Marine environments and moist polluted industrial environments with airborne contaminants are most severe to ATMOSPHERIC CORROSION

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Marine environments and moist polluted industrial environments are highly corrosive due to the presence of airborne contaminants such as salt, sulfur compounds, and pollutants. These contaminants react with the metal surfaces, leading to the formation of corrosion products. The high humidity and moisture in these environments accelerate the corrosion process, making them particularly severe for atmospheric corrosion. Therefore, the statement "Marine environments and moist polluted industrial environments with airborne contaminants are most severe to atmospheric corrosion" is true.

    Rate this question:

  • 3. 

    What is the damage mechanism that can happen in bimetallic connections such as copper to aluminium electrical connections.

    • A.

      Erosion

    • B.

      Galvanic Corrosion

    • C.

      Atmospheric Corrosion

    • D.

      None of these

    Correct Answer
    C. Atmospheric Corrosion
    Explanation
    Bimetallic connections, such as copper to aluminium electrical connections, can experience atmospheric corrosion. This is a process where the metal surfaces react with elements in the air, such as oxygen and moisture, leading to the formation of corrosion products. Over time, this corrosion can weaken the connection, leading to electrical resistance, poor conductivity, and potential failure of the connection. Erosion refers to the wearing away of materials due to mechanical forces, while galvanic corrosion occurs when two dissimilar metals are in contact in the presence of an electrolyte, causing one metal to corrode.

    Rate this question:

  • 4. 

    Bird turds can cause accelerated atmospheric corrosion

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Bird turds can cause accelerated atmospheric corrosion because they contain high levels of uric acid, which is highly corrosive to metals. When bird droppings come into contact with metal surfaces, the uric acid reacts with the metal, causing it to corrode at a faster rate than normal. This can lead to damage and deterioration of structures or objects exposed to bird droppings over time. Therefore, it is true that bird turds can cause accelerated atmospheric corrosion.

    Rate this question:

  • 5. 

    Which is the related mechanism of Atmospheric Corrosion?

    • A.

      Galvanic Corrosion

    • B.

      Mechanical Damage

    • C.

      Corrosion Under Insulation (CUI)

    • D.

      None of these

    Correct Answer
    C. Corrosion Under Insulation (CUI)
    Explanation
    Atmospheric corrosion refers to the corrosion that occurs when metal is exposed to the atmosphere. It is caused by the interaction of the metal with moisture, oxygen, and other corrosive agents present in the air. Corrosion Under Insulation (CUI) is a specific type of atmospheric corrosion that occurs when moisture becomes trapped between insulation material and the metal surface, leading to accelerated corrosion. Galvanic corrosion, on the other hand, occurs when two different metals are in contact with each other in the presence of an electrolyte, causing one metal to corrode faster. Mechanical damage refers to corrosion caused by physical forces such as abrasion or impact, rather than chemical reactions with the environment. Since atmospheric corrosion is the general mechanism at play in this question, the correct answer is None of these.

    Rate this question:

Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.