1.

What is the pressure of gas that is to be supplied, for carrying the abrasives?

A. 0.1 to 1.0 kg/cm<sup>2</sup>
B. 2.0 to 8.0 kg /cm<sup>2</sup>
C. 10.0 to 18.0 kg/cm<sup>2</sup>
D. 25.0 to 35.5 kg/cm<sup>2</sup>
Answer» C. 10.0 to 18.0 kg/cm<sup>2</sup>


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