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 are the types of metallic coatings that prevent corrosion? |
| A. | Metal cladding |
| B. | Electroplating |
| C. | Metal coat extrusion |
| D. | Metal cladding, electroplating and metal coat extrusion |
| Answer» E. | |
| 2. |
Pure metals are more corrosion resistant than commercial materials. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What is the standard electrode potential of Fe+2/Fe? |
| A. | 0.0 V |
| B. | +0.36 |
| C. | -0.44 |
| D. | -0.76 |
| Answer» D. -0.76 | |
| 4. |
Which of the following is/are the causes of catastrophic failures of corrosion? |
| A. | Incomplete weld penetration |
| B. | Extremely porous casting |
| C. | Improper heat treatment |
| D. | Incomplete weld penetration, extremely porous casting and improper heat treatment |
| Answer» E. | |
| 5. |
What is/are the preventions of uniform corrosion? |
| A. | Proper material coatings |
| B. | Inhibitors |
| C. | Cathodic protection |
| D. | Proper material coatings, inhibitors, and cathodic protection |
| Answer» E. | |
| 6. |
Tarnishing of silver is an example of which type of corrosion? |
| A. | Crevice corrosion |
| B. | Pitting corrosion |
| C. | Uniform corrosion |
| D. | Erosion corrosion |
| Answer» D. Erosion corrosion | |
| 7. |
Which of the following is an example of uniform corrosion? |
| A. | Zinc dissolution in dilute H<sub>2</sub>SO<sub>4</sub> |
| B. | Dezincification of brass in acids |
| C. | Rusting of iron |
| D. | Zinc dissolution in dilute H<sub>2</sub>SO<sub>4</sub> and rusting of iron |
| Answer» E. | |
| 8. |
Which of the following is/are types of corrosion? |
| A. | Erosion corrosion |
| B. | Galvanic corrosion |
| C. | Pitting corrosion |
| D. | Erosion, galvanic and pitting corrosion |
| Answer» E. | |
| 9. |
What is the important basis for the classification of corrosion? |
| A. | Appearance of corroded metal |
| B. | Nature of metal |
| C. | Environmental conditions |
| D. | Corrosion rate |
| Answer» B. Nature of metal | |