MCQOPTIONS
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MCQOPTIONS
This section includes 66 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. |
State whether the following statement is true or false.'In USM, tool tips must have low resistance and fatigue strength.' |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
What is the value of the amplitude obtained when we use mechanical amplifier? |
| A. | 1 - 10 µm |
| B. | 10 - 40 µm |
| C. | 40 - 50 µm |
| D. | 50 - 100 µm |
| Answer» D. 50 - 100 µm | |
| 3. |
Frequency of tool's oscillation in USM ranges between? |
| A. | 5-10 kHz |
| B. | 10-15 kHz |
| C. | 18-20 kHz |
| D. | 25-50 kHz |
| Answer» D. 25-50 kHz | |
| 4. |
State whether following statement is true or false.'In Ultrasonic Machining, Magnetostrictor is energized at ultrasonic frequency.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
State whether following statement is true or false.'The machinability of USM depends on brittleness criterion.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
State whether the statement is true or false.'If splashing occurs, it will result in the increase of material removal rate in USM.' |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
When the static pressure of the feed is increases, what happens to MRR? |
| A. | Increases |
| B. | Decreases |
| C. | Increase up to a limiting condition |
| D. | Decrease up to a limiting condition |
| Answer» D. Decrease up to a limiting condition | |
| 8. |
As the tool area increases, what happens to MRR? |
| A. | Decreases |
| B. | Increases |
| C. | Remains same |
| D. | None of the mentioned |
| Answer» B. Increases | |
| 9. |
State whether the following statement is true or false.'Machining rate can be affected by the ratio of hardness of tool to that of hardness of work piece.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
State whether the statement is true or false.'Hole oversize measures the difference between hole diameter measured at the bottom surface, and the tool diameter.' |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
What is the expected life of the nozzles used in WJM? |
| A. | 10 hrs |
| B. | 20 hrs |
| C. | 100 hrs |
| D. | 200 hrs |
| Answer» E. | |
| 12. |
What are the uses of catcher in machining system of Water jet machining? |
| A. | Collecting dirt |
| B. | Collection of debris |
| C. | Reduce noise levels |
| D. | All of the mentioned |
| Answer» E. | |
| 13. |
Which of the following does not damage the nozzle used in Water jet machining? |
| A. | Particles of dirt |
| B. | Mineral deposits |
| C. | Water |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 14. |
State whether the following statement is true or false.'Rotary Ultrasonic Machining is the process in which, interrupted drilling of small-diameter holes takes place.' |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
Which of the following factors affect the surface finish of machined parts in Ultrasonic Machining? |
| A. | Amplitude |
| B. | Material |
| C. | Tool surface |
| D. | All of the mentioned |
| Answer» E. | |
| 16. |
When the viscosity of liquid carrier is increased, the surface quality of the parts? |
| A. | Increased |
| B. | Decreased |
| C. | Remained same |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 17. |
Typical roundness error in glass, resulted due to lateral vibrations is between? |
| A. | 01 -20 µm |
| B. | 20 - 40 µm |
| C. | 40 - 140 µm |
| D. | 150 - 250 µm |
| Answer» D. 150 - 250 µm | |
| 18. |
What is value of surface finish achieved, when we use the abrasive of grit number 240? |
| A. | 0.01 - 0.08 µm |
| B. | 0.08 - 0.13 µm |
| C. | 0.13 - 0.25 µm |
| D. | 0.25 - 0.38 µm |
| Answer» E. | |
| 19. |
In Micro-USM, using WC tool, what is the value of diameter can be achieved? |
| A. | 1 µm |
| B. | 3 µm |
| C. | 5 µm |
| D. | 7 µm |
| Answer» D. 7 µm | |
| 20. |
In Abrasive jet machining, what may be the size of the abrasive grains used? |
| A. | 10 - 40 µm |
| B. | 50 - 100 µm |
| C. | 100 - 150 µm |
| D. | 200 - 300 µm |
| Answer» B. 50 - 100 µm | |
| 21. |
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 - 0.90 mm | |
| 22. |
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 | |
| 23. |
Which of the following, are the processes and applications in which Abrasive jet machining can be applied? |
| A. | Drilling |
| B. | Cutting |
| C. | Deburring |
| D. | All of the mentioned |
| Answer» E. | |
| 24. |
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 | |
| 25. |
What are the processes where Abrasive jet machining can be used? |
| A. | Cleaning |
| B. | Cutting |
| C. | Deburring |
| D. | All of the mentioned |
| Answer» E. | |
| 26. |
State whether the following statement is true or false.'In Abrasive jet machining, commercial grades powders can be used for machining.' |
| A. | True |
| B. | False |
| Answer» C. | |
| 27. |
Which of the following is the disadvantage of water jet machining? |
| A. | Narrow kerf width |
| B. | Small diameter of nozzle |
| C. | Not suitable for mass production |
| D. | Burr is minimal |
| Answer» D. Burr is minimal | |
| 28. |
State whether following statement is true or false.'In Water jet machining, tool need not require sharpening once the machining is done.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 29. |
State whether following statement is true or false.'To start the cuts in Water jet machining, pre-drilled holes are not necessary.' |
| A. | True |
| B. | False |
| Answer» C. | |
| 30. |
State whether the following statement is true or false.'As the pump pressure increases, depth of cut decreases in Water jet machining.' |
| A. | True |
| B. | False |
| Answer» C. | |
| 31. |
What is the amount of material utilizes when we machine parts using Abrasive jet machining? |
| A. | Very low |
| B. | Low |
| C. | Medium |
| D. | High |
| Answer» E. | |
| 32. |
In Abrasive jet machining, intricate shapes and holes are machined on which type of materials? |
| A. | Brittle |
| B. | Thin |
| C. | Difficult to machine |
| D. | All of the mentioned |
| Answer» E. | |
| 33. |
What are the type of materials that can be machined using Abrasive jet machining? |
| A. | Glass |
| B. | Sapphire |
| C. | Quartz |
| D. | All of the mentioned |
| Answer» E. | |
| 34. |
Which type of materials cannot be machined using Abrasive jet machining? |
| A. | Soft materials |
| B. | Hard materials |
| C. | Difficult to machine materials |
| D. | None of the mentioned |
| Answer» B. Hard materials | |
| 35. |
State whether following statement is true or false.'Using abrasive jet machining, wire cleaning and insulation stripping takes places without affecting the conductor.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 36. |
State whether the following statement is true or false, about Abrasive jet machining.'Using Abrasive jet machining, micro deburring of hypodermic needles can take place.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 37. |
Which of the following materials in Abrasive jet machining can be a health hazard? |
| A. | Abrasive grains |
| B. | Air carrier |
| C. | Silica dust |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 38. |
After how much time tool has to be changed in AJM? |
| A. | 1 hr |
| B. | 2 hrs |
| C. | 5 hrs |
| D. | No tool change required |
| Answer» E. | |
| 39. |
In AJM, air filters are used to remove which of the following? |
| A. | Moisture |
| B. | Oil |
| C. | Other dust particles |
| D. | All of the mentioned |
| Answer» E. | |
| 40. |
By using Abrasive jet machining, how much amount of hardening does the materials experience? |
| A. | No hardening |
| B. | Very less hardening |
| C. | Average hardening |
| D. | High hardening |
| Answer» B. Very less hardening | |
| 41. |
What is the limit of the roller speed used in MAF? |
| A. | Up to 0.5 m/s |
| B. | Up to 1.3 m/s |
| C. | Up to 2.6 m /s |
| D. | Up to 3.3 m/s |
| Answer» C. Up to 2.6 m /s | |
| 42. |
In order to achieve uniform circulation of abrasives, the magnetic abrasives are undergone through which of the following? |
| A. | Stirring |
| B. | Oscillation |
| C. | Vibration |
| D. | All of the mentioned |
| Answer» B. Oscillation | |
| 43. |
Magnetic lines of force flows on which part of the work piece material? |
| A. | Through the work piece |
| B. | Over the surface |
| C. | Above the work piece |
| D. | Below the work piece |
| Answer» B. Over the surface | |
| 44. |
Which of the following materials combine to form the magnetic abrasive brush in MAF? |
| A. | Work piece |
| B. | Magnetic and abrasive particles |
| C. | Magnets |
| D. | All of the mentioned |
| Answer» E. | |
| 45. |
State whether following statement is true or false about magnetic abrasive finishing.'Increasing the magnetic flux density raises the rate of material removal in finishing.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 46. |
State whether following statement is true or false about Magnetic abrasive finishing.'Higher rates of material removal are obtained, with an increase in amplitude and frequency.' |
| A. | True |
| B. | False |
| Answer» B. False | |
| 47. |
Which of the following factors does not affect the magnetic abrasive conglomerates in MAF? |
| A. | Abrasive type |
| B. | Abrasive size |
| C. | Work piece material |
| D. | Volume fraction |
| Answer» D. Volume fraction | |
| 48. |
What are the advantages of Ice jet machining over the other advanced machining processes? |
| A. | Environmentally safe |
| B. | Cost reduction |
| C. | No heat affected zone |
| D. | All of the mentioned |
| Answer» E. | |
| 49. |
What is the value of diameter of nozzle that is used in Ice jet machining? |
| A. | 0.175 mm |
| B. | 0.425 mm |
| C. | 0.548 mm |
| D. | 0.654 mm |
| Answer» B. 0.425 mm | |
| 50. |
Ultrasonic atomizer used in ice particle generator, produces water droplets at which rate? |
| A. | 0.1 ltr/hr to 1 ltr/hr |
| B. | 2 ltr/hr to 12 ltr/hr |
| C. | 20 ltr/hr to 35 ltr/hr |
| D. | 40 ltr/hr to 65 ltr/hr |
| Answer» C. 20 ltr/hr to 35 ltr/hr | |