单选题To operate a centrifugal fire pump at reduced capacity, you should （）.Areadjust the relief valveBthrottle the suction lineCthrottle the discharge valveDopen the priming line
单选题
To operate a centrifugal fire pump at reduced capacity, you should （）.
A
readjust the relief valve
B
throttle the suction line
C
throttle the discharge valve
D
open the priming line
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