【判断题】
泡沫比例混合系统分负压式和正压式二类，其中压缩空气泡沫系统（CAPS）属正压式。
A. 对
B. 错
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答案
A
解析
暂无解析
相关试题
【判断题】
湿泡沫指系统泡沫液混合比为0.3～1%时，喷出的空气含量小、流动性好和附着力较差的泡沫，通常呈普通泡沫状，泡沫析水时间短，通常在垂直表面不能形成堆积厚度。
A. 对
B. 错
【判断题】
中等泡沫指当系统泡沫液混合比为0.3～1%时，喷出的空气含量介于干泡沫和湿泡沫之间，流动性较差、附着力较强的泡沫，通常呈絮状，泡沫析水时间较长，能够附着在建筑物或其它物体表面上。
A. 对
B. 错
【判断题】
腰斧受一般性沾污时，可先用肥皂水擦洗，再用水清洗后凉干；当腰斧受油漆或柏油等玷污时，应先用四氯化碳擦去污痕迹，再按以上方法清洗，切忌用汽油或石蜡油等进行擦洗，以免橡胶柄套损坏。
A. 对
B. 错
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