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This section includes 9 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.“As the pump pressure increases, depth of cut decreases in Water jet machining.” |
A. | True |
B. | False |
Answer» C. | |
2. |
Which of the following property/ies of nozzle does not affect the material removal rate in Water jet machining? |
A. | Material |
B. | Diameter |
C. | Outside temperature |
D. | Stand-off distance |
Answer» D. Stand-off distance | |
3. |
In WJM, what are the properties of jet fluid that affect the MRR? |
A. | Velocity |
B. | Flow rate |
C. | Viscosity |
D. | All of the mentioned |
Answer» E. | |
4. |
What is the value of feed rate in Water Jet Machining? |
A. | 0.0001 – 0.025 m/min |
B. | 0.05 – 0.25 m/min |
C. | 0.5 – 200 m/min |
D. | 200 – 500 m/min |
Answer» D. 200 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 500 m/min | |
5. |
What is the value of material thickness of work piece in WJM? |
A. | 0.001 – 0.25 mm |
B. | 0.8 – 25 mm |
C. | 50 – 100 mm |
D. | 100 – 500 mm |
Answer» C. 50 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 100 mm | |
6. |
What are the values of jet velocities in Water jet machining? |
A. | 100 – 200 m/s |
B. | 200 – 500 m/s |
C. | 500 – 1500 m/s |
D. | 1500 – 3000 m/s |
Answer» D. 1500 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 3000 m/s | |
7. |
What is the value of stand-off distance in Water jet machining? |
A. | 0.1 – 1 mm |
B. | 1 – 2 mm |
C. | 2 – 6 mm |
D. | 6 – 14 mm |
Answer» D. 6 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 14 mm | |
8. |
What is the value of diameter of the jet cutting nozzle in WJM? |
A. | 0.01 – 0.1 mm |
B. | 0.1 – 0.3 mm |
C. | 0.3 – 0.7 mm |
D. | 0.7 – 1.5 mm |
Answer» C. 0.3 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.7 mm | |
9. |
Distance between which components, is the stand-off distance? |
A. | Nozzle-inlet and work piece top |
B. | Nozzle-outlet and work piece-top |
C. | Nozzle-inlet and work piece-bottom |
D. | Nozzle-outlet and work piece-bottom |
Answer» C. Nozzle-inlet and work piece-bottom | |