单选题If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should（）Aremove the discharge ringBre-prime the purifierCthe centrifuge to its proper speedDinstall an additional discharge ring
单选题
If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should（）
A
remove the discharge ring
B
re-prime the purifier
C
the centrifuge to its proper speed
D
install an additional discharge ring
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