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. |
In the electron beam gun, cathode cartridge is highly negatively biased. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Heating to a high temperature leads to thermo-ionic emission. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
______ is used to make cathode for electron beam gun. |
| A. | Aluminium |
| B. | Rubidium |
| C. | Molybdenum |
| D. | Tantalum |
| Answer» E. | |
| 4. |
Which of the following is not a function of electron beam gun? |
| A. | generation of electrons |
| B. | accelerating the electrons |
| C. | focusing the beam |
| D. | absorbing the electron beam |
| Answer» E. | |
| 5. |
The gun in EBM is used in _____ mode. |
| A. | wave guide |
| B. | biasing |
| C. | pulsed |
| D. | high intensity |
| Answer» D. high intensity | |
| 6. |
As the electrons strike the work material _____ |
| A. | heat energy is converted to kinetic energy |
| B. | atomic energy is converted to heat energy |
| C. | kinetic energy is converted to heat energy |
| D. | electrical energy is converted to heat energy |
| Answer» D. electrical energy is converted to heat energy | |
| 7. |
During EBM _____ is kept under vacuum. |
| A. | electron gun |
| B. | whole setup |
| C. | the workpiece |
| D. | laser generation setup |
| Answer» D. laser generation setup | |
| 8. |
Electron beam machining is carried out in _____ |
| A. | high pressure vessel |
| B. | thermally insulated area |
| C. | vacuum |
| D. | in a room at atmospheric pressure |
| Answer» D. in a room at atmospheric pressure | |
| 9. |
Electron beam machining is a/an _____ process |
| A. | adiabatic |
| B. | thermal |
| C. | iso-thermal |
| D. | isentropic |
| Answer» C. iso-thermal | |
| 10. |
Mechanism of material removal in Electron Beam Machining is due to _____ |
| A. | mechanical erosion due to impact of high of energy electrons |
| B. | chemical etching by the high energy electron |
| C. | sputtering due to high energy electrons |
| D. | melting and vaporisation due to the thermal effect of impingement of high energy electron |
| Answer» E. | |