×
单选题
电磁阀应该包括一个标志，表明阀门是弹簧加载到开启或关闭位置。
A
Solenoid switches shall indicate whether the valve is solenoid-loaded to the open or closed positon.
B
Electromagnetic valves shall include a marking indicating whether the valve is coil-loaded to the open or closed positon.
C
Solenoid valves shall include a notation indicating whether the valve is spring-loaded to the open or closed positon.
答案解析
正确答案：C
相关知识点：
电磁阀有标志，表明弹簧位置
题目纠错
相关题目
单选题
Tighten the coaxial connectors (hand tight plus 1/8 turn)
单选题
It has a single shaft and operates at a constant speed.
单选题
Care must be taken not to damage the firewall cover.
单选题
Two semicircular flappers control air flow.
单选题
It is necessary to clean the filter periodically.
单选题
The seat height lock mechanism controls seat height.
单选题
Use the reset pushbutton to reset the elapsed time.
单选题
This enables better thrust management and decreases fuel consumption.
单选题
The passenger conditioned air distribution gets air from the mix manifold.
单选题
Provide ventilation for lavatories and galleys.
