The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the （）

A.It causes excessive smoking and soot at low firing rates
B.It doesn’t readily burn when combined with oxygen
C.It clogs fuel oil strainers more often
D.It forms a corrosive acid when mixed with water or water vapor

A.at which a liquid will give off inflammable vapors
B.at which a liquid will burn steadily
C.at which a liquid will explode
D.that a liquid must reach before it will flow readily

A.viscosity
B.pour point
C.volatility
D.lower explosive limit