MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Materials Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The molding sand in moist state is named as __________ |
| A. | Green sand |
| B. | Loam sand |
| C. | Backing sand |
| D. | Parting sand |
| Answer» B. Loam sand | |
| 2. |
Which of the following is not a stage of mold preparation? |
| A. | Mixing |
| B. | Quenching |
| C. | Tempering |
| D. | Conditioning |
| Answer» C. Tempering | |
| 3. |
The molding sand in moist state is named as _________? |
| A. | Green sand |
| B. | Loam sand |
| C. | Backing sand |
| D. | Parting sand |
| Answer» B. Loam sand | |
| 4. |
__________ additives improve the permeability of the molds. |
| A. | Sawdust |
| B. | Seacoal |
| C. | Cereals |
| D. | Silica flour |
| Answer» B. Seacoal | |
| 5. |
Why are Kaolinite and Bentonite used as clay in molding sand? |
| A. | High expansion ratio |
| B. | High thermo-chemical stability |
| C. | High coefficient of expansion |
| D. | Non-reactive with molding sand |
| Answer» C. High coefficient of expansion | |
| 6. |
Chilled castings are made by using _________ |
| A. | Natural sand |
| B. | Synthetic sand |
| C. | Zircon sand |
| D. | Chromite sand |
| Answer» E. | |
| 7. |
How much water does natural sand require? |
| A. | 2-4% |
| B. | 5-8% |
| C. | 10-12% |
| D. | 14-22% |
| Answer» C. 10-12% | |
| 8. |
How much clay does loam sand contain? |
| A. | Up to 2% |
| B. | Up to 10% |
| C. | Up to 30% |
| D. | Up to 50% |
| Answer» E. | |
| 9. |
What makes the molding sand refractory? |
| A. | Additive |
| B. | High-temperature treatment |
| C. | Silica |
| D. | Clay |
| Answer» D. Clay | |
| 10. |
Which of the following is not a constituent of molding sand? |
| A. | Additive |
| B. | Sand |
| C. | Epoxy |
| D. | Binder |
| Answer» D. Binder | |