默认题库 - 航路指南

单选题

In Admiralty Sailing Directions，bands is the word used to indicate（）marking．

A. horizontal
B. vertical
C. diagonal
D. vertical or diagonal

单选题

On a voyage from Halifax,N.S.,to Dakar,West Africa,the Canary Current will （）.

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

查看答案

单选题

The distance between the surface of the water and the tidal datum is the （）.

A. range of tide
B. height of tide
C. charted depth
D. actual water depth

查看答案

单选题

A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is （）.

A. from the ship's propeller when making up aft
B. from being overrun if making up forward
C. hull damage while alongside passing a hawser
D. getting in a tripping positio

查看答案

单选题

Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean （）.

A. lower low water
B. high water
C. low water
D. sea level

查看答案

单选题

The period at high or low tide during which there is no change in the height of the water is called the （）.

A. range of the tide
B. plane of the tide
C. stand of the tide
D. reversing of the tide

查看答案

单选题

A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and （）.

A. one sidelight and the masthead light are visible
B. the vessels will pass closer than half a mile
C. both vessels sound one prolonged blast
D. both sidelights and masthead light(s) are visible

查看答案

单选题