以下关于箱式消火栓的安装说法不正确的是( )。 A．消火栓箱体中心距地面为1.4m
题型：单项选择题
问题：
以下关于箱式消火栓的安装说法不正确的是( )。
A．消火栓箱体中心距地面为1.4m，容许偏差为±20mm
B．阀门中心距箱侧面为140mm，距箱后内表面为100mm，容许偏差±5mm
C．栓口应朝外，并不应安装在门轴侧
D．栓口中心距地面为1.1mm，容许偏差为±20mm
题型：单项选择题
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