Basic Process Knowledge (Multiple Choice) 20180825

2018-08-25View Original

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The neutral function of a Y-type three-position four-way directional control valve is . A. The oil inlet of the oil feed pump is locked, while the oil inlets of the two actuation mechanisms are unloaded. B. The oil inlet of the oil feed pump is unloaded, while the oil inlets of the two actuation mechanisms are locked. C. Both the oil inlet of the oil feed pump and those of the actuation mechanisms are locked. D. Both the oil inlet of the oil feed pump and those of the actuation mechanisms are unloaded

Reply #22018-08-25

Both the oil inlet for the oil feed pump and the oil inlet for the actuator are locked #Please reply quickly here#

Reply #32018-08-25

the anser is B

Reply #42018-08-25

A. The oil inlet of the oil circulation pump is locked, and the oil inlets of the two actuation mechanisms are unloaded

Reply #52018-08-25

A. The oil inlet of the oil circulation pump is locked, and the oil inlets of the two actuation mechanisms are unloaded

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Basic Process Knowledge (Multiple Choice) 20180825

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