單項(xiàng)選擇題

Magnetic dip is a measurement of the angle between the（）.

A.geographic pole and the magnetic pole
B.lubber's line and true north
C.horizontal and the magnetic line of force
D.compass heading and the magnetic heading

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單項(xiàng)選擇題

Magnetic compass deviation（）.

A.varies depending upon the bearing used
B.is the angular difference between magnetic north and compass north
C.is published on the compass rose on most nautical charts
D.is the angular difference between geographic and magnetic meridians

單項(xiàng)選擇題

Knowing the compass heading that is 90°to the side of a ship will enable the operator of a survival craft to initially steer（）.

A.into the wind
B.away in fire and smoke
C.directly to the standby boat
D.directly to the nearest land

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Magnetic dip is a measurement of the angle between the（）.

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Magnetic compass deviation（）.

Knowing the compass heading that is 90°to the side of a ship will enable the operator of a survival craft to initially steer（）.