MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Cooling of casting walls of non uniform thickness results into formation of tears or warping in the metal casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
What should be the ratio of rib thickness to wall thickness in castings for proper avoiding of concentration of metal at joints? |
| A. | 1 to 2 |
| B. | >2 |
| C. | >1 |
| D. | 0.6 to 0.8 |
| Answer» E. | |
| 3. |
Which of the following methods is used to detect a concentration of the metal? |
| A. | Check triangle method |
| B. | Euler’s method |
| C. | Finn’s method |
| D. | Check circle method |
| Answer» E. | |
| 4. |
Positive temperature gradient which gradually increases towards the feed head, avoid shrinkage defects. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Analysis of variations in the foundry procedures has no affect on the economy of production. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
WHICH_OF_THE_FOLLOWING_METHODS_IS_USED_TO_DETECT_A_CONCENTRATION_OF_THE_METAL??$ |
| A. | Check triangle method |
| B. | Euler’s method |
| C. | Finn’s method |
| D. | Check circle method |
| Answer» E. | |
| 7. |
Cooling of casting walls of non uniform thickness results into formation of tears or warping in the metal casting.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What should be the ratio of rib thickness to wall thickness in castings for proper avoiding of concentration of metal at joints?$ |
| A. | 1 to 2 |
| B. | >2 |
| C. | >1 |
| D. | 0.6 to 0.8 |
| Answer» E. | |
| 9. |
Which of the following is not desirable in casting design for minimum stress concentration? |
| A. | Roundness of external corners |
| B. | Local metal accumulations |
| C. | No abrupt changes in casting walls |
| D. | Uniform thickness of casting walls |
| Answer» C. No abrupt changes in casting walls | |
| 10. |
The formation of hot tears in the hand wheels or big gear wheels can be reduced by_____ |
| A. | making the hub of greater strength |
| B. | reducing the thickness of the spokes |
| C. | increasing the ductility of the spokes |
| D. | increasing the thickness of the spokes |
| Answer» D. increasing the thickness of the spokes | |
| 11. |
Positive temperature gradient which gradually increases towards the feed head, avoid shrinkage defects? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Non-uniform cross-sectional areas of the high temperature casting lead to having hot spots in the casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
In the solidification process, external angles have a lower cooling rate than re-entrant angles of the casting. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Contours, cavities and passages in the casting can be possible without placing of any cores in the casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
The axis of the cylindrical boss should be in the parting plane to have satisfactorily use of boss in casting. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
In sand castings, modification of bosses is done to_____ |
| A. | have good surface finish |
| B. | to reduce the chances of porosity |
| C. | to eliminate the use of core |
| D. | to reduce casting yield |
| Answer» D. to reduce casting yield | |
| 17. |
Analysis of variations in the foundry procedures has no affect on economy of production. |
| A. | True |
| B. | False |
| Answer» C. | |
| 18. |
In designing for economical moulding, it is not advisable to have complexities in the parting line. |
| A. | True |
| B. | False |
| Answer» B. False | |