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电气设备是按正常工作的额定电压、额定电流选择,按短路条件进行热稳定及动稳定校验。
A. 正确
B. 错误
一台波纹管式压力变送器在更换新的波纹管时,若限位螺钉旋得较紧,则仪表指示将()。
A. 偏大
B. 偏小
C. 不变
D. 不确定
On a Series 1010 lightweight access point, the alarm LED is flashing red, and all other LEDs are off. What is the lightweight access point indicating?()
A. It has lost contact with controller.
B. Its IP address already exists.
C. It requires a code upgrade.
D. It is operating normally.
卷封机出现卡桶等异常情况停机时,应()
A. 重新开机取出
B. 拆卸设备取出
C. 开机后进料将其顶出
D. 关闭电源后手动盘车取出