MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Parting sand is a type of moulding sand. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What is the amount of clay needed in green sand? |
| A. | 5% – 10% |
| B. | 5% – 15% |
| C. | 15% – 30% |
| D. | 25% – 40% |
| Answer» D. 25% – 40% | |
| 3. |
PARTING_SAND_IS_A_TYPE_OF_MOULDING_SAND.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
WHAT_IS_THE_AMOUNT_OF_CLAY_NEEDED_IN_GREEN_SAND??$ |
| A. | 5% – 10% |
| B. | 5% – 15% |
| C. | 15% – 30% |
| D. | 25% – 40% |
| Answer» D. 25% ‚Äö√Ñ√∂‚àö√ë‚àö¬® 40% | |
| 5. |
In green sand what is the amount of water used? |
| A. | 5% |
| B. | 10% |
| C. | 15% |
| D. | 20% |
| Answer» B. 10% | |
| 6. |
Which of the following is not a defect if permeability is not enough? |
| A. | Brittleness |
| B. | Gas holes |
| C. | Mould blast |
| D. | Surface blows |
| Answer» B. Gas holes | |
| 7. |
Why should the moulding sand be porous? |
| A. | For gases to enter |
| B. | For gases to escape |
| C. | For water to enter |
| D. | For water to escape |
| Answer» C. For water to enter | |
| 8. |
Which of the following would not happen if hot strength is not enough? |
| A. | The mould may get hardened |
| B. | The mould may get enlarged |
| C. | The mould may get eroded |
| D. | The mould may crack |
| Answer» B. The mould may get enlarged | |
| 9. |
Hot strength is seen at what temperature? |
| A. | Above 212°F |
| B. | Above 312°F |
| C. | Above 412°F |
| D. | Above 512°F |
| Answer» B. Above 312¬¨¬®‚Äö√†√ªF | |
| 10. |
Dry sand does not have the strength for what functions? |
| A. | To withstand corrosion forces |
| B. | To withstand pressure of molten metal |
| C. | To be able to retain its shape |
| D. | To be able to retain the hardenability |
| Answer» E. | |
| 11. |
What does a mould having adequate green strength, does not have? |
| A. | Ability to retain its shape |
| B. | Ability not to get distorted |
| C. | Ability not to collapse |
| D. | Ability to retain hardness |
| Answer» E. | |
| 12. |
Which of the following is not a characteristic property of any moulding sand? |
| A. | Flowability |
| B. | Hardenability |
| C. | Green strength |
| D. | Dry strength |
| Answer» C. Green strength | |