MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The dried plaster mould have __________ |
| A. | Low permeability |
| B. | High permeability |
| C. | Moderate permeability |
| D. | Same amount of permeability as other moulds |
| Answer» B. High permeability | |
| 2. |
The baking process in plaster moulding process induces which of the following defects? |
| A. | It depletes down the content of water at a very scarce level |
| B. | It develops microscopic cracks onto the surface of mould |
| C. | It gives the surface improper heat that causes differential heat treatment while casting solidification |
| D. | The Calcium reacts at elevated temperatures used for baking the mould |
| Answer» C. It gives the surface improper heat that causes differential heat treatment while casting solidification | |
| 3. |
What is the range of temperature used for baking molds using plaster moulding process? |
| A. | 50 -100 |
| B. | 80 -120 |
| C. | 120 -260 |
| D. | 250 -300 |
| Answer» D. 250 -300 | |
| 4. |
RPM is only used for castings of which of the following material? |
| A. | Ferrous metals |
| B. | Non-ferrous Metals |
| C. | Plastics |
| D. | Silicone |
| Answer» C. Plastics | |