![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
风压是指风量为7m3/min,风机出口产生的风压,风压越大表示油烟机的吸排能力越强劲。我司抽油烟机的压力是()
A.≥500pa,≥100pa
B.≥550pa,≥100pa
C.≥730pa,≥500pa
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、≥550pa,≥100pa
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.≥500pa,≥100pa
B.≥550pa,≥100pa
C.≥730pa,≥500pa
B、≥550pa,≥100pa
A.1
B.2
C.5
D.10
A.离心风机改变了风管内介质的流向,轴流风机不改变风管内介质的流向
B.离心风机的风量和风压都很低,轴流风机的风量和风压都很大
C.离心风机的安装都比较复杂,轴流风机的安装都比较简单
D.离心风机的电机和风机一般都是通过轴连接,轴流风机的电机一般都在风机内