【判断题】
离心泵的启动步骤是先开出口阀，后开进口阀
A. 对
B. 错
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答案
B
解析
暂无解析
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【判断题】
为防止水冷器结垢腐蚀，一般要求设计循环水走管程，且要求换热管内循环水流速不小于0.9m/s，不得已设计循环水走壳程时，必须经过充分的论证并制定有效的防腐措施，如升级材质为不锈钢、选用可抽芯结构型式等
A. 对
B. 错
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