A.air gap
B.freeboard
C.penetration
D.water depth
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A.range of tide
B.height of tide
C.charted depth
D.actual water depth
A.difference in longitude
B.mid-longitude
C.departure
D.meridian angle
A.increases in north latitude and decreases in south latitude
B.decreases as DLO increases
C.increases with increased latitude
D.decreases with increased latitude
A.set the vessel to the left
B.set the vessel to the right
C.offer resistance in the form of a head current
D.furnish additional thrust in the form of a fair or following current
A.Canary Current
B.Benguela Current
C.Agulhas Current
D.South Atlantic Current
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Areas enclosed by a long and short dashed magenta line indicate （）.
The height of eye correction is smaller than geometrical dip because of （）.
The Earth’s irregular heating is caused by （）.
A vessel not to impede the passage of another vessel is not relieved （） taking collision-avoiding action.
A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is （）.
A vessel is entering port A for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do（）.
AFTER DROPPING THE PILOT means （）.
The distance between any two meridians measured along a parallel of latitude and expressed in miles is the （）.
On a voyage from Halifax,N.S.,to Dakar,West Africa,the Canary Current will （）.
As these features are not all charted，special caution should be exercised （） vessels navigating in the vicinity.