MCQOPTIONS
Saved Bookmarks
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 effect is described in the given figure? |
| A. | Crevice |
| B. | Pitting |
| C. | Beneficial galvanic effect |
| D. | Erosion |
| Answer» D. Erosion | |
| 2. |
Which of the following is/are the preventions of the galvanic effect? |
| A. | Insulating dissimilar metals |
| B. | Selection of close metal combinations in a galvanic series |
| C. | Neglecting area effect |
| D. | Insulating dissimilar metals and selection of close metal combinations in a galvanic series |
| Answer» E. | |
| 3. |
Which of the following is/are the characteristics of a Galvanic series? |
| A. | Used only for pure metals |
| B. | Less accurate prediction than EMF series |
| C. | Includes active and passive potentials of a metal |
| D. | Measured only at room temperature |
| Answer» D. Measured only at room temperature | |
| 4. |
Which of the following are Reference electrodes? |
| A. | Standard hydrogen electrode |
| B. | Calomel electrode |
| C. | Silver electrode |
| D. | Standard hydrogen electrode and a calomel electrode |
| Answer» E. | |
| 5. |
What is the abbreviation of SHE? |
| A. | Substitute hydrogen electrode |
| B. | Standard hydrogen electrode |
| C. | Significant hydrogen electrode |
| D. | Standard hydride electrode |
| Answer» C. Significant hydrogen electrode | |
| 6. |
In which of the following cases, we observe the galvanic effect? |
| A. | Bolts and Nuts metal joining’s |
| B. | Piping arrangements |
| C. | Machinery of a different metal combination |
| D. | Bolts and nuts metal joining’s, piping arrangements and machinery of a different metal combinations |
| Answer» E. | |
| 7. |
Preferential cathode and anode are formed based on the potential value of a metal electrode. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What are the factors that affect Galvanic coupling? |
| A. | Type of metals |
| B. | Relative size of electrodes |
| C. | Environmental conditions |
| D. | Types of metals, the relative size of electrodes and environmental conditions |
| Answer» E. | |
| 9. |
The effect of Galvanic Coupling is due to the contact of dissimilar metals in a conductive electrolyte. |
| A. | True |
| B. | False |
| Answer» B. False | |