A.located in an air-conditioned area
B.mounted in the passenger compartment
C.protected by a collision bulkhead
D.permanently mounted
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A.Three lights in a vertical line,the highest and lowest red and the middle white,and anchor lights
B.Three lights in a vertical line,the highest and lowest red and the middle white,ONLY
C.Anchor lights ONLY
D.Anchor lights and sidelights ONLY
A.vessel laying cable
B.vessel towing a submerged object
C.vessel not under command
D.air cushion vessel
A.Opening and closing the throttle
B.Rocking the wings
C.Flashing the navigational lights off and on
D.Flashing Morse T
A.has long life
B.is light weight
C.absorbs shock
D.has fine adjustment
A.increase the towing hawser's catenary and provide more spring
B.reduce catenary,allow operation in shallower water,and to release one barge without breaking up the entire tow
C.enable one tug and its crew without any outside assistance to make up or break down the tow
D.provide rapid delivery of logs from the northwestern United States to Hawaiian sawmills
最新試題
An azimuth angle for a body is measured from the().
An authorized light to assist in the identification of submarines operating on the surface is a(n)().
All Loran-C transmitting stations are equipped with cesium frequency standards which permit ().
An advantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it().
All OSV personnel should be familiar with survival craft().
Explosive and flammable gasses are most likely to be encountered on a vessel().
All of the following are part of the fire triangle EXCEPT().
All personnel on board a vessel should be familiar with the rescue boat’s().
An aneroid barometer on a boat should always be().
An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show? ()