单项选择题

The direction a vessel is pointed at any given time is the（）.

A.course
B.track
C.heading
D.course over the ground

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单项选择题

The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to（）.

A.a difference in water pressure
B.the method of breaking up the water stream
C.the length of the applicator
D.All of the above

单项选择题

The dew point is reached when the（）.

A.temperature of the air equals the temperature of the seawater
B.atmospheric pressure is 14.7 lbs. per square inch
C.relative humidity reaches 50%
D.air becomes saturated with water vapor

单项选择题

The design specifications for cranes and crane foundations on ship’s are set and published by the（）.

A.American Society of Mechanical Engineers
B.American Petroleum Institute
C.Society of Petroleum Engineers
D.American Society of Civil Engineers