【判断题】【消耗次数：1】
电焊机应设置二次空载降压保护装置
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
安全保护装置是通过自身结构功能限制或防止机器某种危险，从而消除或减小风险的装置。常见种类包括联锁装置、能动装置、敏感保护装置、双手操作式装置限制装置等。关于安全保护装置功能的说法，正确的是（）。
①
A.联锁装置是防止危险机器功能在特定条件下停机的装置
②
B.限制装置是防止机器或危险机器状态超过设计限度的装置
③
C.能动装置是与停机控制一起使用的附加手动操纵装置
④
D.敏感保护装置是探测周边敏感环境并发出信号的装置
随机题目
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Ihaven got___to do this evening. Would you like to go to see a film?
①
something
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anything
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nothing
【单选题】
-“When shall we meet again next week?”-“______________ day is possible. It’s no problem with me.”
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Either
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Neither
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Every
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His grandfather is very healthy. He _______drinks _______smokes.
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both, and
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no,but
③
either, or
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neither, nor
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since four years
②
for the past four years
③
four years ago
④
from the past four years
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①
yet
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already
③
never
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seldom
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Mr. Hilton is not good at music. Neither ______his children.
①
is
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was
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were
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are