A.only when the load is taken off the cable
B.only when there is a load on the cable
C.only when activated by the controls at the lowering station
D.at any time
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A.Cirrus
B.Cumulus
C.Stratus
D.Nimbus
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can
A.satellite communications
B.navigational information
C.weather information
D.position reporting service
A.At least two lifeboats
B.A radiotelephone
C.A radio direction finder
D.None of the above
A.carried by hand to a fire
B.carried or rolled to a fire
C.recharged in the field
D.used on class "B" fires
最新試題
An “atoll cloud” forming over an island due to heating of the land during the daytime would be which type? （）
An aneroid barometer on a boat should always be（）.
All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.
An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes? （）
An inflatable liferaft is floating in its container，attached to the ship by its painter，as the ship is sinking rapidly. Which action should be taken with respect to the liferaft container? （）
All OSV personnel should be familiar with survival craft（）.
An advantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it（）.
All portable fire extinguishers must be capable of being（）.
An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show? （）
All of the following information concerning lighted aids to navigation may be read directly from the Light List EXCEPT the（）.