MCQOPTIONS
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MCQOPTIONS
This section includes 9 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 depicted in the given figure? |
| A. | Activation polarization |
| B. | Concentration polarization |
| C. | Resistance polarization |
| D. | Concentration and Resistance polarization |
| Answer» B. Concentration polarization | |
| 2. |
Which of the following are the types of polarization? |
| A. | Activation polarization |
| B. | Activation and Concentration polarization |
| C. | Resistance polarization |
| D. | Activation, Concentration and Resistance polarization |
| Answer» E. | |
| 3. |
Which of the following parameter of electrolyte decreases the corrosion rate? |
| A. | Dissolved oxygen |
| B. | Temperature |
| C. | High electrical resistance |
| D. | Presence of ferric ions |
| Answer» D. Presence of ferric ions | |
| 4. |
Oxygenated acids are more corrosive than oxygen-free acids. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
More than one anodic and cathodic reactions are possible in corrosion. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of the following are the types of chemical reactions? |
| A. | Combination and Decomposition reactions |
| B. | Combination and Single displacement |
| C. | Single and Double displacement reaction |
| D. | Combination, Decomposition, Single displacement and double displacement |
| Answer» E. | |
| 7. |
Which of the following is more stable form of iron in an oxygenated solution? |
| A. | Fe2O3 |
| B. | Fe(OH)2 |
| C. | 2Fe(OH)3 |
| D. | Fe3O4 |
| Answer» D. Fe3O4 | |
| 8. |
Which of the following reactions occurs when iron is immersed in (oxygenated) sea water? |
| A. | Fe==>Fe+2+2e, 2H++2e==>H2 |
| B. | Fe==>Fe+2+2e, O2+2H2O+4e==>4OH– |
| C. | Fe+2+2e==>Fe+2, 4H++O2+4e==>2H2O |
| D. | sea water?a) Fe==>Fe+2+2e, 2H++2e==>H2b) Fe==>Fe+2+2e, O2+2H2O+4e==>4OH–c) Fe+2+2e==>Fe+2, 4H++O2+4e==>2H2Od) Fe+2+2e==>Fe+2, 2H++2e==>H2 |
| Answer» C. Fe+2+2e==>Fe+2, 4H++O2+4e==>2H2O | |
| 9. |
Which of the following products are obtained when a zinc metal is dipped in dilute HCl solution? |
| A. | H2, ZnCl2 |
| B. | Cl2, ZnH2 |
| C. | H2, Cl2 and ZnH2 |
| D. | Zn, H2 and Cl2 |
| Answer» B. Cl2, ZnH2 | |