【判断题】
采用新型材料是车体结构的轻量化方法之一。
A. 对
B. 错
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答案
A
解析
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CRH380A统型动车组在关闭门窗及空调设备对外开口的情况下,车厢内压力从4kPa到1kPa下降时间应大于50秒。
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CRH380A统型动车组车体采用铝合金型材。
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CRH380B型动车组车体采用铝合金型材。
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CRH5型动车组车体采用铝合金型材。
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动车组车钩分为自动车钩、半永久车钩以及过渡车钩。
A. 对
B. 错
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