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
All portable fire extinguishers must be capable of being（）.
In respect of carrier’s liabilities，responsibilities，rights and immunities the（）contained in the International Convention for the Unification of Certain Rules Relating to Bills of Lading，signed at Brussels on August 25，1924，shall be applied.
All towing vessels of 26 feet or longer while navigating are required to carry which item? （）
An azimuth angle for a body is measured from the（）.
In handling break bulk hazardous materials，it is forbidden to use（）.
An “atoll cloud” forming over an island due to heating of the land during the daytime would be which type? （）
All of the following vessels are “restricted in their ability to maneuver” EXCEPT a vessel （）.
Explosive and flammable gasses are most likely to be encountered on a vessel（）.
An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter “E” (Echo) to signify that “（）”.
Air circulation is caused or affected by（）.