MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Crucibles do not possess refractoriness. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following is not a raw material for making a crucible? |
| A. | Clay |
| B. | Wax |
| C. | Graphite |
| D. | Silicon carbide |
| Answer» C. Graphite | |
| 3. |
Production of crucibles is inexpensive. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following cannot be counted among the advantages of a crucible? |
| A. | Uniform heating |
| B. | Low flexibility |
| C. | Low installation cost |
| D. | No contamination of charge |
| Answer» C. Low installation cost | |
| 5. |
Which of the following does not hold valid for an isostatic press? |
| A. | Consistent mixture |
| B. | High pressure operation |
| C. | High density of product |
| D. | Wet mix used |
| Answer» E. | |
| 6. |
What is the maximum pressure which the isostatic presses can take for making crucibles? |
| A. | 890 atm |
| B. | 1270 atm |
| C. | 1000 atm |
| D. | 1100 atm |
| Answer» D. 1100 atm | |
| 7. |
Which of the following is not a property of a crucible? |
| A. | Retention of thermal conductivity |
| B. | Resistance to chemical attack |
| C. | Retention of electrical conductivity |
| D. | Resistance to erosion |
| Answer» D. Resistance to erosion | |
| 8. |
The crucible process is used for production of which material? |
| A. | Pig iron |
| B. | Cast iron |
| C. | Tool steel |
| D. | Gray iron |
| Answer» D. Gray iron | |
| 9. |
Which of the following metals or alloys cannot be used for making crucibles? |
| A. | Nickel |
| B. | Zirconium |
| C. | Mercury |
| D. | Platinum |
| Answer» D. Platinum | |
| 10. |
Among the following, production through which material is not possible in a crucible? |
| A. | Glass |
| B. | Metal |
| C. | Pigment |
| D. | Oils |
| Answer» E. | |