MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Manufacturing Processes knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
By AJMM, holes of intricate shapes can be drilled easily. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following assumption is true about AJMM? |
| A. | Abrasives are irregular in shape. |
| B. | The abrasive particles are characterised by the mean grit diameter |
| C. | Brittle materials are considered to fail due to fatigue |
| D. | The kinetic energy of the abrasives is partially lost in overcoming the friction in the nozzle |
| Answer» C. Brittle materials are considered to fail due to fatigue | |
| 3. |
Which of the following is used as abrasive in AJMM? |
| A. | Al<sub>2</sub>O<sub>3</sub> |
| B. | HNO<sub>3</sub> |
| C. | FeC |
| D. | CaCO<sub>3</sub> |
| Answer» B. HNO<sub>3</sub> | |
| 4. |
In AJMM, impingement angle is kept approximately in range of_____ |
| A. | 10<sup>0</sup> ~ 20<sup>0</sup> |
| B. | 30<sup>0</sup> ~ 45<sup>0</sup> |
| C. | 60<sup>0</sup> ~ 90<sup>0</sup> |
| D. | 50<sup>0</sup> ~ 60<sup>0</sup> |
| Answer» D. 50<sup>0</sup> ~ 60<sup>0</sup> | |
| 5. |
The mass flow rate of abrasive entering the chamber is independent of the amplitude of vibration of the sieve (in the mixing chamber). |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
If air is used as a carrier gas, the pressure of the air is maintained at around_____ |
| A. | 1 bar |
| B. | 3 bar |
| C. | 5 bar |
| D. | 3.5 bar |
| Answer» D. 3.5 bar | |
| 7. |
As the stand-off distance increases, the depth of penetration in AJM _____ |
| A. | increases |
| B. | decreases |
| C. | does not change |
| D. | initially increases and then remains steady |
| Answer» C. does not change | |
| 8. |
Material removal takes place in AJM due to _____ |
| A. | electrochemical action |
| B. | mechanical impact |
| C. | fatigue failure of the material |
| D. | sparking on impact |
| Answer» C. fatigue failure of the material | |
| 9. |
Material removal in AJM of glass is around_____ |
| A. | 0.1 mm<sup>3</sup>/min |
| B. | 15 mm<sup>3</sup>/min |
| C. | 15 mm<sup>3</sup>/s |
| D. | 1500 mm<sup>3</sup>/min |
| Answer» C. 15 mm<sup>3</sup>/s | |
| 10. |
AJM nozzles are made from which of the following materials? |
| A. | Low carbon steel |
| B. | HSS |
| C. | WC |
| D. | Stainless steel |
| Answer» D. Stainless steel | |