單項(xiàng)選擇題

Which statement concerning the navigation of a vessel in ice is FALSE?（）

A.Anchoring in the presence of ice is not recommended except in an emergency
B.Towing a vessel through an ice field is not recommended except in an emergency
C.The "Free and Proceed" system of escorting a beset vessel cuts down on the number of freeing operations
D.When anchoring in ice，it is advisable to increase the scope of the chain over what is normally used for non-icing conditions

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單項(xiàng)選擇題

Which statement concerning Montauk Point Light is TRUE?（）

A.The light comes on at sunset
B.There is an emergency light if the main light is extinguished
C.The height of the light is 24 feet
D.The tower is painted with black and white stripes

單項(xiàng)選擇題

Which statement about transmitting distress messages by radiotelephone is INCORRECT?（）

A.Distress messages should first be transmitted on 2182 kHz
B.It is advisable to follow a distress message on 2182 kHz by two dashes of 10 to 15 seconds duration
C.If no answer is received on the designated distress frequencies，repeat the distress call on any frequency available
D.Channel 16 (156.8 MHz) may be used for distress messages