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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. |
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. | |
2. |
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 | |
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 | |