MCQOPTIONS
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MCQOPTIONS
This section includes 12 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_VALUE_OF_THE_CURRENT_USED_IN_PBM_PROCESS??$ |
| A. | Up to 200 A |
| B. | Up to 400 A |
| C. | Up to 600 A |
| D. | Up to 800 A |
| Answer» D. Up to 800 A | |
| 2. |
What is the maximum value of the thickness used in PBM process?$ |
| A. | 100 mm |
| B. | 200 mm |
| C. | 300 mm |
| D. | 400 mm |
| Answer» C. 300 mm | |
| 3. |
What is the value of machining speed used in PBM process?$ |
| A. | 0.1 – 7.5 m/min |
| B. | 8.5 – 10.5 m/min |
| C. | 15.5 – 19.5 m/min |
| D. | 20.5 – 25.5 m/min |
| Answer» B. 8.5 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 10.5 m/min | |
| 4. |
Which of the following are the different shielded plasmas used in PBM? |
| A. | Gas-shielded plasma |
| B. | Water-shielded plasma |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 5. |
What is the value of the power used in PBM process? |
| A. | 0.1 – 10 kW |
| B. | 2 – 200 kW |
| C. | 200 – 400 kW |
| D. | 400 – 700 kW |
| Answer» C. 200 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 400 kW | |
| 6. |
What is the value of specific energy used in Plasma beam machining process? |
| A. | 100 W/(cm<sup>3</sup>-min) |
| B. | 200 W/(cm<sup>3</sup>-min) |
| C. | 300 W/(cm<sup>3</sup>-min) |
| D. | 400 W/(cm<sup>3</sup>-min) |
| Answer» B. 200 W/(cm<sup>3</sup>-min) | |
| 7. |
What is the value of material removal rate in Plasma Beam Machining process? |
| A. | 50 cm<sup>3</sup>/min |
| B. | 100 cm<sup>3</sup>/min |
| C. | 150 cm<sup>3</sup>/min |
| D. | 200 cm<sup>3</sup>/min |
| Answer» D. 200 cm<sup>3</sup>/min | |
| 8. |
What is the value of velocity of plasma jet in Plasma beam machining? |
| A. | 100 m/sec |
| B. | 300 m/sec |
| C. | 400 m/sec |
| D. | 500 m/sec |
| Answer» E. | |
| 9. |
What is the temperature reached by cathode in order to produce plasma beam? |
| A. | 12000 ºC |
| B. | 18000 ºC |
| C. | 28000 ºC |
| D. | 40000 ºC |
| Answer» D. 40000 ¬¨¬®‚Äö√†¬¥C | |
| 10. |
PBM is the only process which works faster in ____ steel than _____ steel. |
| A. | Stainless, mild |
| B. | Mild, stainless |
| C. | Remains same all |
| D. | All of the mentioned |
| Answer» B. Mild, stainless | |
| 11. |
When the Plasma Beam machining process came into the industrial world? |
| A. | 1920s |
| B. | 1930s |
| C. | 1950s |
| D. | 1970s |
| Answer» D. 1970s | |
| 12. |
What is the full form of PBM in the advanced machining processes? |
| A. | Plasma Beam Manufacturing |
| B. | Plasma Beam Machining |
| C. | Plasma Blast Manufacturing |
| D. | Plasma Blast Machining |
| Answer» C. Plasma Blast Manufacturing | |