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Q. |
What is the frequency of mixing chamber, consisting of gas and abrasives? |
A. | 10 hz |
B. | 30 hz |
C. | 50 hz |
D. | 70 hz |
Answer» C. 50 hz | |
Explanation: mixing chamber consisting of carrier gas and the abrasive grains, vibrates at a frequency of 50 hz. |
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