MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 metal combination is/are selected as per given requirement in the figure? |
| A. | Gold – Iron |
| B. | Steel – Stainless |
| C. | Brass – Copper |
| D. | Silver – Zinc |
| Answer» C. Brass – Copper | |
| 2. |
Which of the following is/are the functions of magic devices or water-conditioning gadgets? |
| A. | Prevent scaling |
| B. | Destroy bacteria |
| C. | Reduce water hardness |
| D. | Prevent scaling, destroy bacteria and reduce water hardness |
| Answer» E. | |
| 3. |
Which of the following belongs to the alteration of the environment to minimize corrosion? |
| A. | Decreasing velocity |
| B. | Removing oxygen and oxidizers |
| C. | Changing concentration |
| D. | Decreasing velocity, removing oxygen and oxidizers and changing the concentration |
| Answer» E. | |
| 4. |
Boiling seawater is less corrosive than that of hot seawater. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following type of materials possess excellent corrosion and high-temperature resistance? |
| A. | Metals |
| B. | Plastics |
| C. | Ceramics |
| D. | Both ceramics and metals |
| Answer» D. Both ceramics and metals | |
| 6. |
Which of the following is/are the different classes of non-metallics? |
| A. | Ceramics and wood |
| B. | Plastics and ceramics |
| C. | Wood, ceramics, and plastic |
| D. | Ceramics only |
| Answer» D. Ceramics only | |
| 7. |
Which of the following type of zirconium is used in an atomic-energy application? |
| A. | Induction-melted zirconium |
| B. | Arc-melted zirconium |
| C. | Both arc-melted and induction-melted zirconium |
| D. | Neither arc-melted nor induction melted zirconium |
| Answer» C. Both arc-melted and induction-melted zirconium | |
| 8. |
Which of the following material is used for handling hydrogen peroxide? |
| A. | Commercially pure metals |
| B. | Alloys |
| C. | Both commercially pure metal and alloys |
| D. | Neither commercially pure metals nor alloys |
| Answer» B. Alloys | |
| 9. |
Which of the following metal is/are the correct combination for reducing or non-oxidizing environment? |
| A. | Nickel and its alloys |
| B. | Copper and its alloys |
| C. | Stainless steels |
| D. | Nickel, copper and its alloys |
| Answer» E. | |
| 10. |
Which of the following metal is the best material selection combination for distilled water? |
| A. | Tin |
| B. | Lead |
| C. | Titanium |
| D. | Nickel |
| Answer» B. Lead | |
| 11. |
Which of the following metal is the best material selection combination for the caustic environment? |
| A. | Titanium |
| B. | Nickel and its alloys |
| C. | Steels |
| D. | Aluminum and its alloys |
| Answer» C. Steels | |
| 12. |
Which of the following metal is the best material selection combination for the nitric acid environment? |
| A. | Tin |
| B. | Nickel and its alloys |
| C. | Stainless steels |
| D. | Steel |
| Answer» D. Steel | |
| 13. |
Which of the following types of corrosion in which stainless steels are more susceptible than ordinary steels? |
| A. | Pitting corrosion |
| B. | Stress-corrosion cracking |
| C. | Intergranular corrosion |
| D. | Stress-corrosion cracking, pitting and intergranular corrosion |
| Answer» E. | |
| 14. |
Which of the following composition range is correct regarding stainless steel? |
| A. | 11.5 to 30% chromium and 10 to 22% nickel |
| B. | 11.5 to 30% chromium and 0 to 22% nickel |
| C. | 0 to 30% chromium and 0 to 22% nickel |
| D. | 0 to 30% chromium and 10 to 22% nickel |
| Answer» C. 0 to 30% chromium and 0 to 22% nickel | |
| 15. |
The most common method of preventing corrosion is the selection of the proper metal or alloy for a particular corrosive service. |
| A. | True |
| B. | False |
| Answer» B. False | |