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单选题
If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off, the engineer should （）.
A
close the static leg filling valve
B
close the overflow tank falling valve
C
reduce the fuel oil pumping rate
D
stop the fuel oil pumping operation
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be fitted with a positive fuel shut-off valve located at the tankB
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spray the tank boundaries with a fire hose to promote cooling
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bufferB
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考题
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考题
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secure all sources of fresh air to the tankB
begin transferring the fuel to other tanksC
top off the tank to force out all vaporsD
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考题
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2D
3E
4
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