“微信扫一扫”进入题库练习及模拟考试
图示输水管道系统,由a处用四条并联管道供水至6处。已知各管段的管长l=200m,l
=400m,l
=350m,l
=300m,比阻S
=1.07s/m
,S
=S
=0.47s
/m
,S
=2.83s
/m
。若总流量为Q=400L/s,各管道的流量为( )。
A.Q=123L/s,Q=189L/s,Q
=23L/s,Q
=65L/s
B.Q=108L/s,Q
=121L/s,Q=54L/s,Q
=117L/s
C.Q=108L/s,Q
=115L/s,Q
=123L/s,Q
=54L/s
D.Q=54L/s,Q
=156L/s,Q=98L/s,Q
=92L/s
参考答案:C