Basic Process Knowledge (Multiple Choice) 20180817

2018-08-17View Original

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This post was last edited by HP0377 on 2018-8-17 08:55. Basic process knowledge (multiple-choice questions) 20180817: What is the neutral function of a three-way four-position directional control valve used for machine model changes? A. The oil pump is locked, and the oil ports connected to the actuator are in communication. B. The oil pump is unloaded, and the oil ports connected to the actuator are locked. C. Both the oil pump’s oil ports and those of the actuator are locked. D. Both the oil pump’s oil ports and those of the actuator are unloaded

Reply #22018-08-17

the anser is C

Reply #32018-08-17

B. Unload the oil pump and lock the actuator oil port

Reply #42018-08-17

B. Unload the oil pump and lock the actuator oil port

Reply #52018-08-17

B. Unload the oil pump and lock the actuator oil port

Reply #62018-08-17

B. Unload the oil pump and lock the actuator oil port

Reply #72018-08-17

B. Unload the oil pump and lock the actuator oil port

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