单选题:绝热层施工技术要求正确的是(  )。

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题目内容:
绝热层施工技术要求正确的是(  )。 A.当釆用一种绝热制品,保冷层厚度位90mm时,可以单层敷设
A.当釆用一种绝热制品,保冷层厚度位90mm时,可以单层敷设
A.当釆用一种绝热制品,保冷层厚度位90mm时,可以单层敷设
B.绝热层施工时,每层及层间接缝应错开,其搭接的长度不大于100mm
B.绝热层施工时,每层及层间接缝应错开,其搭接的长度不大于100mm
B.绝热层施工时,每层及层间接缝应错开,其搭接的长度不大于100mm
C.水平管道的纵向接缝位置,不得布置在管道下部水平中心线45°范围内
C.水平管道的纵向接缝位置,不得布置在管道下部水平中心线45°范围内
C.水平管道的纵向接缝位置,不得布置在管道下部水平中心线45°范围内
D.立式设备和垂直管道的绝热环向接缝,应为上搭下
D.硬质或半硬质绝热制品用作保温层时,拼缝宽度≤5mm
D.硬质或半硬质绝热制品用作保温层时,拼缝宽度≤5mm
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