單項(xiàng)選擇題To () Admiralty Charts 438,latitudes taken from this chart should be increased by about 5 seconds.

A.convert to
B.come to
C.look at
D.agree with


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1.單項(xiàng)選擇題Weekly Notices are dated for the()appropriate to the week they are issued on the UKHO website.

A.Monday
B.Tuesday
C.Wednesday
D.Thursday

2.單項(xiàng)選擇題On the approach of a warm front the barometric pressure usually().

A.falls
B.rises
C.is steady
D.is unreliable

3.單項(xiàng)選擇題What is the most important source of information to be used in correcting charts and keeping them up to date().

A.Fleet Guides
B.Notice to Mariners
C.Sailing Directions
D.Pilot Charts

4.單項(xiàng)選擇題What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island().

A.They mark the limits of breakers in that area
B.These lines warn the mariner of submerged rocks
C.They mark the boundary lines of fish trap areas
D.These lines warn the mariner of submerged pipelines

5.單項(xiàng)選擇題Which is the correct procedure for anchoring a small to medium size vessel in deep water ().

A.Let the anchor fall free from the hawsepipe,but apply the brake at intervals to check the rate of fall
B.Back the anchor slowly out of the hawsepipe a few feet,and then let it fall in the normal fashion
C.Let the anchor fall off the brake right from the hawsepipe,but keep a slight strain on the brake
D.Under power,back the anchor out until it is near,but clear,of the bottom before letting it fall

7.單項(xiàng)選擇題The fog most commonly encountered at sea is called().

A.conduction fog
B.radiation fog
C.frontal fog
D.advection fog

8.單項(xiàng)選擇題The range of a light on Admiralty Charts is normally the().

A.nominal range
B.luminous range
C.geographical range
D.visible range

9.單項(xiàng)選擇題On a nautical chart,the inner ring of a compass rose indicates().

A.true directions
B.compass error
C.deviation
D.magnetic directions

10.單項(xiàng)選擇題The best estimate of the wind direction at sea level can be obtained from observing the direction of the().

A.cloud movement
B.vessel heading
C.waves
D.swells