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As demand on the device shown in the illustration fluctuates in the pressure range of 100 to 110 psi, the output of the unit is controlled by __________. GS-0119 |
A) proportional modulation of the compressor speed |
B) the modulation of the opening of a butterfly valve located in the air intake |
C) change in control pressure to modulate the discharge of compressed air to the atmosphere |
D) complete shut down until the lower pressure limit is reached causing it to restart |
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Illustration GS-0119Comments |
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