Basic Process Knowledge (Multiple Choice) 20180821
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The neutral oil circuit in an O-type functional directional control valve is . A. Port P is closed, while ports A, B, and O are connected to each other. B. All four ports – P, A, B, and O – are closed. C. Ports P, A, and O are connected to each other, while port B is closed. D. Ports P and O are connected to each other, while ports A and B are closed
B~~~~~~~~~~~
B. P, A, B, O – all fully enclosed
A. Port P is closed, while ports A, B, and O are connected to each other