单项选择题
A.the amount of oxygen in a space B.the presence of harmful amounts of carbon monoxide C.concentrations of explosive gas D.All of the above
When making entries in the Oil Record Book, all quantif...
单项选择题When making entries in the Oil Record Book, all quantifies should be（）.
A.recorded as cubic meters with a conversion to barrels B.verified by the Chief Engineer C.recorded directly from the oil discharge monitor D.consistently recorded through the Oil Record Book in one specified unit (gallons, barrels, cubic meters)
When fighting a spreading fire resulting from a broken ...
单项选择题When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.
A.look for a CO2 extinguisher B.use a soda acid extinguisher C.shut off the fuel supply D.smother the fire with rags
The three basic elements necessary for any fire are （）....
单项选择题The three basic elements necessary for any fire are （）.
A.heat, gas, and flames B.fuel, heat, and oxygen C.heat, nitrogen, and fuel D.fuel oil, nitrogen, and oxygen
