海船船员考试
单选题What indicates a dual purpose buoy? （）A Red buoy with a horizontal yellow bandB Red and white vertically-striped buoy with a vertical yellow stripeC Red and white vertically-striped buoy with a red spherical topmarkD Green buoy with a yellow square
题目
Red buoy with a horizontal yellow band
Red and white vertically-striped buoy with a vertical yellow stripe
Red and white vertically-striped buoy with a red spherical topmark
Green buoy with a yellow square
相似问题和答案
第1题：
A green buoy has a yellow triangle on it. This is a(n) ______.
A.information or regulatory buoy that has lateral significance
B.buoy that is off-station and is marked to warn mariners of its wrong position
C.dual purpose marking used where the ICW and other waterways coincide
D.buoy that was set in error and will be replaced with a red nun buoy
第2题：
You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn．If you observe the buoy moving aft relative to you，what should you do ________．
A.Increase the rate of turn
B.Decrease the rate of turn
C.Maintain a constant rate of turn
D.Decrease speed
第3题：
On a chart, the characteristic of the light on a lighthouse is shown as flashing white with a red sector. The red sector ______.
A.indicates the limits of the navigable channel
B.indicates a danger area
C.is used to identify the characteristics of the light
D.serves no significant purpose
在海图上，灯塔的灯光特性被显示为白和红的扇区。红扇区表示危险区域。
第4题：
what is the purpose of classification？
正确答案:The purpose of classification is to sort packets into different traffic types， so that different policies then can be applied.
第5题：
What is the purpose of an administrative distance？
正确答案:An administrative distance is a rating of preference for a routing protocol or a static route. When a router learns of a destination via more than one routing protocol or static route， AD will be used to choose the route with the lowest value.
第6题：
A survey (special purpose mark) buoy ______.
A.must be lighted
B.may have a flashing red light
C.may have a fixed white light
D.None of the above
第7题：
You are entering an east coast port and see a buoy with a yellow triangle painted on it．This indicates ______．
A.you are in the vicinity of the ICW
B.the buoy is a special mark
C.the buoy is off station
D.the buoy designates a sharp turn in the channel
第8题：
The buoy symbol printed on your chart is leaning to the northeast. This indicates ______.
A.you should stay to the north or east of the buoy
B.you should stay to the west or south of the buoy
C.the buoy is a major lighted buoy
D.nothing special for navigational purposes
第9题：
What is the purpose of the Route Tag field in the RIPv2 message？
正确答案:When another routing protocol uses the RIPv2 domain as a transit domain， the protocol external to RIPv2 can use the Route Tag field to communicate information to its peers on the other side of the RIPv2 domain.
第10题：
A black ball that is hoisted when the ship anchors
A buoy attached to the anchor
A buoy attached to the scope of an anchor chain
A mark of the number of fathoms in an anchor chain