單項(xiàng)選擇題What is it called when it is possible to ignite the vapour above the oil?()

A.Flash point
B.Boiling point
C.Ignition point
D.Pour point


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1.單項(xiàng)選擇題Manoeuvring information can not be obtained from().

A.construction plans
B.sea trials
C.calculation estimates
D.SMS procedure file

2.單項(xiàng)選擇題Fog is likely to occur when there is little difference between the dew point and the().

A.relative humidity
B.air temperature
C.barometric pressure
D.absolute humidity

4.單項(xiàng)選擇題The dew point temperature is().

A.always higher than the air temperature
B.always lower than the air temperature
C.equal to the difference between the wet and dry bulb temperatures
D.the temperature at which the air is saturated with water vapor

5.單項(xiàng)選擇題Where would you find information about the time of high tide at a specific location on a particular day of the year?()

A.Tide Tables
B.Tidal Current Tables
C.Coast Pilot
D.Nautical Almanac