已知某离心水泵,其流量Q=0.25m3/s,在1个标准大气压下,水温20℃(对应气化压头为0.24m)时,允许吸入真空度[hs]=4m,泵进口直径D=320mm,从吸入口进入到泵入口水头损失∑h1=1
考试:=$ecms_gr[fenlei]?>
科目:=$ecms_gr[kemu]?>(在线考试)
问题:
A:1.07m
B:2.07m
C:307m
D:4.07m
答案:
解析:
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