MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Corrosion Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is/are the preventions of hydrogen embrittlement? |
| A. | Baking of steels at low temperatures (200°F–300°F) |
| B. | Alloying with nickel or molybdenum reduces susceptibility |
| C. | Practicing proper welding with low hydrogen welding rods |
| D. | Baking of steels at low temperatures, alloying with nickel or molybdenum reduces susceptibility and practicing proper welding with low hydrogen welding rods. |
| Answer» E. | |
| 2. |
Which of the preventions is/are the preventions of hydrogen blistering? |
| A. | Use of clean steel instead of rimmed steel |
| B. | Applying metallic, inorganic and organic coatings |
| C. | Use of substituting alloys such as nickel-based alloys |
| D. | Use of clean steel instead of rimmed steel, applying metallic, inorganic and organic coatings and use of nickel-based alloys |
| Answer» E. | |
| 3. |
Which of the following type of corrosion in which corrosion occurs due to the presence of hydrogen sulfide? |
| A. | Hydrogen embrittlement |
| B. | Hydrogen blistering |
| C. | Sulfide stress corrosion |
| D. | Erosion corrosion |
| Answer» D. Erosion corrosion | |
| 4. |
Which of the following metal is highly susceptible to hydrogen embrittlement? |
| A. | Titanium |
| B. | Nickel |
| C. | Martensitic iron-base alloys |
| D. | Titanium and martensitic iron-base alloys |
| Answer» E. | |
| 5. |
Which of the following type of compounds act as an inhibitor for hydrogen-ion reduction? |
| A. | Sulfide ions |
| B. | Phosphorous compounds |
| C. | Arsenic compounds |
| D. | Sulfide ions, phosphorous and arsenic compounds |
| Answer» E. | |
| 6. |
Which of the following industries has a major concern on hydrogen blistering? |
| A. | Petroleum industry |
| B. | Chemical manufacturing industries |
| C. | Oil and natural gas refineries |
| D. | Oil and natural gas refineries, petroleum and chemical manufacturing industries |
| Answer» E. | |
| 7. |
Which of the following types of hydrogen damage processes are high-temperature processes? |
| A. | Hydrogen blistering and hydrogen attack |
| B. | Hydrogen attack and Decarburization |
| C. | Decarburization and hydrogen embrittlement |
| D. | Hydrogen attack only |
| Answer» C. Decarburization and hydrogen embrittlement | |
| 8. |
What is meant by hydrogen embrittlement? |
| A. | Entrapment of hydrogen molecules in the metal voids |
| B. | Formation of brittle metal hydrides |
| C. | Entrapment of metal hydrides in the metal voids |
| D. | Entrapment of hydrogen molecules and metal hydrides in the metal voids |
| Answer» C. Entrapment of metal hydrides in the metal voids | |
| 9. |
What is meant by hydrogen blistering? |
| A. | Entrapment of hydrogen molecules in the metal voids |
| B. | Formation of brittle metal hydrides |
| C. | Entrapment of metal hydrides in the metal voids |
| D. | Entrapment of hydrogen molecules and metal hydrides in the metal voids |
| Answer» B. Formation of brittle metal hydrides | |
| 10. |
Which of the following is/are the types of hydrogen damage? |
| A. | Hydrogen blistering |
| B. | Hydrogen embrittlement |
| C. | Decarburization |
| D. | Hydrogen blistering, hydrogen embrittlement, and decarburization |
| Answer» E. | |
| 11. |
Hydrogen damage refers to the mechanical damage of a metal caused by the presence of or interaction of hydrogen. |
| A. | True |
| B. | False |
| Answer» B. False | |