默认题库 - 船舶强度资料

单选题

How does a coast radio station communicating by HF radio normally identify itself?（）

A. By its subscriber number
By its call sign
C. By its MMSI
D. By its MID

单选题

How does foam extinguish an oil fire?（）

A. By cooling the oil below the ignition temperature
By removing the fuel source from the fire
C. By excluding the oxygen from the fire
D. By increasing the weight of the oil

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单选题

How is the external flotation bladder of an immersion suit inflated?（）

A. It is inflated by a small CO<sub>2</sub> bottle that is automatically tripped when the front zipper is at the top of the zipper track
B. It is inflated by a small CO<sub>2</sub> bottle that is manually tripped
C. It is inflated by blowing through an inflation tube
D. It inflates by seawater bleeding into the inflation bladder and reacting with a chemical

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单选题

（）of the following conditions will cause a vessel’s bottom to be subjected to tension stresses.

A. Concentration of weight aft
B. Concentration of weight forward
Concentration of weight amidships
D. Concentration of weight at both ends of the vessel

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单选题

How is a safe water mark，that can be passed close aboard on either side，painted and lighted?（）

A. Black and white stripes with an interrupted quick flashing light
Black and red stripes with a Morse (A) light
C. Black and red stripes with an interrupted quick flashing light
D. Red and white stripes with a Morse (A) light

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单选题

From your position you observe a rotating white and green light to the north. This light is most likely（）.

A. at an airport
B. on a naval mine-countermeasures vessel
C. Block Island North Light
D. on a vessel engaged in public safety activity

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单选题

For means of abandonment of a ship，which type of embarkation does not require prior approval by the Coast Guard?（）

A. Movable ladders
B. Fixed ladders
C. Safety booms
D. Elevator

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单选题

（）of my ship’s propeller is very strong.

A. The running reflection
B. The turning effect
C. The moving speed
D. The changing sensibility

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单选题

Frapping lines（）.

A. secure the lifeboat in the davits when in the stowed position
B. bring the lifeboat close alongside the rail in the embarkation position
C. give the occupants a safety line when the boat is being lowered from the embarkation level
D. reduce the swinging of the lifeboat at the embarkation level

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单选题

Freeboard is measured from the upper edge of the（）.

A. bulwark
B. deck line
C. gunwale bar
D. sheer strake

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