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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. |
Addition of hard and sharp abrasive particles into the water jet can increase the cutting ability of the jet. |
A. | True |
B. | False |
Answer» B. False | |
2. |
What will be the mass flow rate of water, when the water pressure is 4000 bar, being issued from an orifice of diameter 0.3 mm, assuming all related coefficients to be 1? |
A. | 1 kg/min |
B. | 2.89 kg/min |
C. | 3.26 kg/min |
D. | 3.79 kg/min |
Answer» E. | |
3. |
Assuming no losses, what will be the water jet velocity, when the water pressure is 4000 bar, being issued from an orifice of diameter 0.3 mm? |
A. | 212 m/s |
B. | 467 m/s |
C. | 592 m/s |
D. | 894 m/s |
Answer» E. | |
4. |
For which of the following operations, abrasive water jet machining is not used? |
A. | Peening |
B. | Pocket milling |
C. | Mass immunization |
D. | Cutting hard materials |
Answer» E. | |
5. |
Which of the following materials, is not machined using abrasive water jet machining? |
A. | Diamond |
B. | Concrete |
C. | Stone – Granite |
D. | Reinforced plastics |
Answer» B. Concrete | |
6. |
In entrained type AWJM, abrasive water jet has a velocity of around _____ m/s. |
A. | 100 |
B. | 220 |
C. | 650 |
D. | 800 |
Answer» E. | |
7. |
To stop the dispersion of the water jet in the atmosphere ______ is used. |
A. | sodium Carboxylate |
B. | acrylonitrile |
C. | long chain polymers |
D. | silica gel |
Answer» D. silica gel | |
8. |
In pure WJM, commercially pure water is used. |
A. | True |
B. | False |
Answer» B. False | |
9. |
In AJMM, water at _____ MPa is pumped. |
A. | 100-150 |
B. | 200-400 |
C. | 200-300 |
D. | 370-500 |
Answer» C. 200-300 | |
10. |
Water Jet Machining (WJM) and Abrasive Jet Micromachining (AJMM or AWJM) can be achieved using how many different approaches? |
A. | 10 |
B. | 5 |
C. | 7 |
D. | only one approach is there |
Answer» D. only one approach is there | |