MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Match the elements in box ‘A’ to their respective functions in box ‘B’ and tick the correct option. |
| A. | 1-a, 2-b, 3-c |
| B. | 1-b, 2-a, 3-c |
| C. | 1-c, 2-b, 3-a |
| D. | 1-c, 2-a, 3-bView Answer |
| Answer» D. 1-c, 2-a, 3-bView Answer | |
| 2. |
Why should the finishing of the core be made good enough? |
| A. | The intricate shapes made are difficult for machine finishing |
| B. | The size of the cavities and contours must be accurate to enable perfect assemblies |
| C. | It reduces machining cost and time invested for that |
| D. | All of the mentioned |
| Answer» E. | |
| 3. |
Why should the finishing of core be made good enough? |
| A. | The intricate shapes made are difficult for machine finishing |
| B. | The size of the cavities and contours must be accurate to enable perfect assemblies |
| C. | It reduces machining cost and time invested for that |
| D. | All of the above |
| Answer» E. | |
| 4. |
Why the air already present inside the corebox is necessary to be evacuated before pressurised air is blown into it? |
| A. | The air has comparatively low pressure hence, distortion occurs |
| B. | Hot tears will occur on the surface |
| C. | It will cause poor sand distribution and poor compaction |
| D. | Nothing will happen as the pressure of incoming air neutralises inside air pressure |
| Answer» D. Nothing will happen as the pressure of incoming air neutralises inside air pressure | |
| 5. |
What will happen if the parting line in the corebox is not closed properly? |
| A. | Coresand may blow out of the box to create fins on the cores |
| B. | The cope and drag part clamped will detach and break the core |
| C. | Air inclusion occurs as the atmospheric air involves the solidification of core |
| D. | Nothing will happen, as the parting line has no role in core making |
| Answer» B. The cope and drag part clamped will detach and break the core | |
| 6. |
In the case of shell, hotbox or warmbox ______________ |
| A. | Hot water is poured onto the sand mixture |
| B. | The sand mixture is heated to set the core |
| C. | Steam is provided to the core mix |
| D. | The corebox is left in the room temperature |
| Answer» C. Steam is provided to the core mix | |
| 7. |
In the case of coldbox core _____________ |
| A. | The core mix is heat treated in order to cure it |
| B. | Core mix immediately gets cured after sand is blown |
| C. | Time is given to the core mix to be cure |
| D. | Cold water is poured onto the core mix |
| Answer» D. Cold water is poured onto the core mix | |
| 8. |
What are the core boxes? |
| A. | Used to support cores |
| B. | Used to create cores |
| C. | Used to store cores |
| D. | Used to Eject cores while ejection of casting after solidification |
| Answer» C. Used to store cores | |
| 9. |
How are core manufactured in casting? |
| A. | Cores are manufactured from a pattern in the same way as of mold |
| B. | Cores are manufactured by machining process |
| C. | Cores are manufactured by traditional methods |
| D. | Cores are not manufactured, they are found naturally |
| Answer» B. Cores are manufactured by machining process | |