MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Advanced Machining knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the life of Tungsten carbide material nozzle? |
| A. | 1 – 8 hrs |
| B. | 2 – 5 hrs |
| C. | 10 – 15 hrs |
| D. | 25 – 40 hrs |
| Answer» D. 25 – 40 hrs | |
| 2. |
Which of the following values, does the diameter of the nozzle lies between? |
| A. | 0.01 – 0.10 mm |
| B. | 0.30 – 0.50 mm |
| C. | 0.70 – 0.90 mm |
| D. | 1.10 – 1.50 mm |
| Answer» C. 0.70 – 0.90 mm | |
| 3. |
Which of the following material/s cannot be used for making of nozzle in Abrasive jet machining? |
| A. | Tungsten Carbide |
| B. | Steel alloy |
| C. | Sapphire |
| D. | Synthetic sapphire |
| Answer» C. Sapphire | |
| 4. |
In the following properties of abrasive grains, which of them changes rate of material removal? |
| A. | Size |
| B. | Strength |
| C. | Shape |
| D. | All of the mentioned |
| Answer» E. | |
| 5. |
In the following properties of nozzle, which of them does not influence the MRR? |
| A. | Size |
| B. | Wear |
| C. | Outside temperature |
| D. | Distance from work piece |
| Answer» D. Distance from work piece | |
| 6. |
WHICH_OF_THE_FOLLOWING_MATERIAL/S_CANNOT_BE_USED_FOR_MAKING_OF_NOZZLE_IN_ABRASIVE_JET_MACHINING??$ |
| A. | Tungsten Carbide |
| B. | Steel alloy |
| C. | Sapphire |
| D. | Synthetic sapphire |
| Answer» C. Sapphire | |
| 7. |
What is the life of Tungsten carbide material nozzle?$ |
| A. | 1 – 8 hrs |
| B. | 2 – 5 hrs |
| C. | 10 – 15 hrs |
| D. | 25 – 40 hrs |
| Answer» D. 25 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 40 hrs | |
| 8. |
Between which of the following values, does the diameter of the nozzle lies?$ |
| A. | 0.01 – 0.10 mm |
| B. | 0.30 – 0.50 mm |
| C. | 0.70 – 0.90 mm |
| D. | 1.10 – 1.50 mm |
| Answer» C. 0.70 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.90 mm | |
| 9. |
In AJM, surface roughness value will vary between which values? |
| A. | 0.01 – 0.10 µm |
| B. | 0.15 – 1.5 µm |
| C. | 2.0 – 5.0 µm |
| D. | 7.0 – 10.0 µm |
| Answer» C. 2.0 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 5.0 ¬¨¬®¬¨¬µm | |
| 10. |
What are the tolerance limit values in Abrasive water jet machining? |
| A. | ± 0.01 mm |
| B. | ± 0.03 mm |
| C. | ± 0.05 mm |
| D. | ± 0.07 mm |
| Answer» D. ¬¨¬®¬¨¬± 0.07 mm | |
| 11. |
In AJM, what is the life of synthetic sapphire material nozzle? |
| A. | 100 hrs |
| B. | 300 hrs |
| C. | 500 hrs |
| D. | 700 hrs |
| Answer» C. 500 hrs | |
| 12. |
What is the value of carrier gas flow rate in Abrasive jet machining? |
| A. | 6 L/min |
| B. | 17 L/min |
| C. | 28 L/min |
| D. | 39 L/min |
| Answer» D. 39 L/min | |
| 13. |
What must be the velocity of the carrier gas that carries the abrasive particles? |
| A. | 10 – 50 m/sec |
| B. | 50 – 150 m/sec |
| C. | 150 –300 m/sec |
| D. | 300 – 500 m/sec |
| Answer» D. 300 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 500 m/sec | |
| 14. |
What is the value of abrasive grain flow rate in Abrasive jet machining? |
| A. | 0.1 – 2 g/min |
| B. | 3 – 20 g/min |
| C. | 30 – 56 g/min |
| D. | 68 – 85 g/min |
| Answer» C. 30 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 56 g/min | |
| 15. |
As the abrasive flow rate increases, what happens to the volumetric removal rate? |
| A. | Increases |
| B. | Decreases |
| C. | Increase and then decrease |
| D. | Decrease and then increase |
| Answer» D. Decrease and then increase | |
| 16. |
Of the following properties of abrasive grains, which of them changes rate of material removal? |
| A. | Size |
| B. | Strength |
| C. | Shape |
| D. | All of the mentioned |
| Answer» E. | |
| 17. |
Of the following properties of nozzle, which of them does not influence the MRR? |
| A. | Size |
| B. | Wear |
| C. | Outside temperature |
| D. | Distance from work piece |
| Answer» D. Distance from work piece | |
| 18. |
Which of the following components, influence the material removal rate in Abrasive jet machining? |
| A. | Nozzle |
| B. | Carrier gas |
| C. | Abrasive grains |
| D. | All of the mentioned |
| Answer» E. | |
| 19. |
In AJM, abrasive jet from the nozzle follows, which type of path for a short distance? |
| A. | Parallel |
| B. | Inclined |
| C. | Perpendicular |
| D. | None of the mentioned |
| Answer» B. Inclined | |
| 20. |
In AJM, what is the mechanism of removal of material from the work piece? |
| A. | Corrosion |
| B. | Abrasion |
| C. | Electron transfer |
| D. | Vaporization |
| Answer» C. Electron transfer | |