MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Aerospace Materials and Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
It is dangerous to use magnesium in pneumatic nail guns and simple hand tools. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
An important principle for cutting tools of magnesium alloys is ___________ the friction. |
| A. | transferring |
| B. | scaling |
| C. | limiting |
| D. | increasing |
| Answer» D. increasing | |
| 3. |
Which one of the following is considered to be an ore of magnesium? |
| A. | Bornite |
| B. | Trihydrate |
| C. | Monohydrate |
| D. | Natural brines |
| Answer» E. | |
| 4. |
Deficiency of magnesium in the human body can lead to diabetes. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Magnesium constitutes around __________ of ocean water in weight. |
| A. | 1.2% |
| B. | 23% |
| C. | 0.125% |
| D. | 7.4% |
| Answer» D. 7.4% | |
| 6. |
Recycling of magnesium requires only _________ of energy required to make the primary substance. |
| A. | 24% |
| B. | 10% |
| C. | 88% |
| D. | 38% |
| Answer» C. 88% | |
| 7. |
___________ is not a magnesium ore. |
| A. | Bauxite |
| B. | Seawater |
| C. | Dolomite |
| D. | Magnesite |
| Answer» B. Seawater | |
| 8. |
The atomic mass of magnesium is ___________ |
| A. | 1/43 u |
| B. | 47.867 u |
| C. | 24.3 u |
| D. | 51.9 u |
| Answer» D. 51.9 u | |
| 9. |
Magnesium alloys are obtainable in the form of __________ |
| A. | permanent mood |
| B. | die castings |
| C. | die castings and permanent mold |
| D. | mud |
| Answer» D. mud | |
| 10. |
Magnesium is convenient to use when ____________ thickness is required. |
| A. | lateral |
| B. | maximum |
| C. | high |
| D. | minimum |
| Answer» E. | |