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. |
Level of vacuum within the gun is in the order of _____ |
| A. | 10-4 to 10-6 Torr |
| B. | 10-1 to 10-3 Torr |
| C. | 10-.0.65 to 10-1 Torr |
| D. | 1 to 2 Torr |
| Answer» B. 10-1 to 10-3 Torr | |
| 2. |
The workpiece is mounted on a CNC table. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
For alignment of the beam, _____ is provided. |
| A. | a lens |
| B. | a telescope |
| C. | magnifier |
| D. | microscope |
| Answer» C. magnifier | |
| 4. |
What is the purpose of a series of slotted rotating discs provided between the electron beam gun and the workpiece? |
| A. | It increases the accuracy of the beam |
| B. | It can increase the intensity of the beam (if needed) |
| C. | It prevents power losses |
| D. | It prevents power lossesd) It prevents vapour generated during machining to reach the gun |
| Answer» E. | |
| 5. |
In the final section of the electron beam gun, electron beam passes through the electromagnetic lens and deflection coil. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
In the electron beam gun, apertures ______ |
| A. | allow only convergent electrons to pass |
| B. | absorb convergent electrons |
| C. | allow divergent electrons to pass |
| D. | accelerate the electron beam |
| Answer» B. absorb convergent electrons | |
| 7. |
After the anode, the electron beam passes through _____ |
| A. | cathode cartridge |
| B. | deflector coils |
| C. | bias grid |
| D. | a series of lenses |
| Answer» E. | |
| 8. |
_____ determines the mode of an electron beam. |
| A. | Applied voltage |
| B. | Operating pressure |
| C. | Position of magnetic lens |
| D. | The nature of biasing |
| Answer» E. | |
| 9. |
Electron is accelerated by _____ |
| A. | cathode cartridge |
| B. | electromagnetic coils |
| C. | aperture |
| D. | annular anode |
| Answer» E. | |
| 10. |
In electron beam machine, just after the cathode, there is/are _____ |
| A. | deflector coils |
| B. | a magnetic lens |
| C. | bias grid |
| D. | port for vacuum gauge |
| Answer» D. port for vacuum gauge | |