MCQOPTIONS
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MCQOPTIONS
This section includes 6 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 deduction of cooling rate from a simple heat balance can only be possible when the process is isothermal and the specific heats of the liquid and the solid are same. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What should be the value of biot number (Bi) for chill mould castings? |
| A. | Less than 1 |
| B. | Greater than 1 |
| C. | Greater than 5 |
| D. | Greater than 11 |
| Answer» B. Greater than 1 | |
| 3. |
The transfer of heat across a gap (an interface between mould and casting) is given by_____ |
| A. | q = h+ T |
| B. | q = h/ T |
| C. | q = h* T |
| D. | q = h- T |
| Answer» D. q = h- T | |
| 4. |
The scale of segregation cannot be reduced or avoided by implementing any kind of method. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following is independent of the solidification time of the casting? |
| A. | Mould material |
| B. | Chaplets |
| C. | Heat transfer coefficient |
| D. | Mould wall temperature |
| Answer» C. Heat transfer coefficient | |
| 6. |
The solidification time can be increased by increasing the thickness of the mould. |
| A. | True |
| B. | False |
| Answer» B. False | |