你可能感興趣的試題

Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.

A.A vessel towed
B.A vessel not under command and unable to maneuver
C.A vessel anchored giving warning of her position
D.A vessel stopped dead in the water

單項選擇題

An occulting light is one in which（）.

A.the period of darkness exceeds the period of light
B.there is only a partial eclipse of the light
C.the periods of light and darkness are equal
D.the period of light exceeds the period of darkness

As defined in the Rules，a towing light is a yellow light having the same characteristics as a(n)（）.

你可能感興趣的試題

Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.

An occulting light is one in which（）.

As defined in the Rules，a towing light is a yellow light having the same characteristics as a(n)（）.

Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.