单项选择题
The flame safeguard control system of a large automatic auxiliary boiler will provide fuel shut off in the case of high （）.
A.water
B.voltage
C.fuel pressure
D.steam pressure
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The operating water is supplied under the （）of an oil separator.
A.sliding bowl bottom
B.bowl hood
C.bowl
D.filter units -
单项选择题
The （）has a water damp ring.
A.purifier
B.oil/water separator
C.incinerator
D.distiller -
单项选择题
Duty officer informs us that the vessel is out of harbor and in “Full Ahead”We are going to run （）.
A.diesel oil instead of fuel oil
B.fuel oil instead of diesel oil
C.diesel oil instead fuel oil
D.fuel oil instead diesel oil
