Principal Structure 1st

What's direction that the target's ship coming to our ship?

• it's coming upon our head.

• it gonna pass our port bow.

• it's undesireable yet.

• it passed through starboard bow then it is turning to our port bow.

How about the length of this ship approximately?

• 50 - 100 metres.

• 0 - 50 metres.

• >=50 metres.

• >50metres.

The vertical lines at the aft and fore by right angle with waterline are AP and FP, aren't it?

If yes, the rang between AP to FP is Length between perpendicular, isn't it?

• No, it's the visualization line.

• Yes, it is.

• Not at all. The AP and FP are not concerned with LBP.

• Yes, but LBP suppose to be concerned with AP, FP and Length Over all as well.

Where the proper base line is?

• The parallel line with the centre line closely.

• Beneath bottom shell plating.

• The topmost of the keel, excluding the bottom shell plating.

• The top of the keel, including the bottom shell plating.

1: The Molded Beam, Molded Dept and Molded Draught are considered with base line, aren't it?

2: The measurement of those values are included with the thickness of steel plating, aren't it?

• absolutly yes.

• I think so.

• it's probably.

• Yes for the first questions, but the measurment is not consider with thickness of steel.

What is the Extreme dept,draught and beam?

• The extreme is consider with the thickness of plating, so the extreme dept is the depth of from upper deck to lowest point of keel, extreme draught from the lowest point of keel to the summer load line and extreme beam is maximum beam taken over all extremities.

• The extreme is not consider with the thickness of plating, so the extreme dept is the depth of from upper deck to lowest point of keel, extreme draught from the lowest point of keel to the summer load line and extreme beam is maximum beam taken over all extremities.

• The extreme dept, draught and beam are using the rough weather especailly.

• All of above are not correct.

How measure the camber ?

• Measurement at the both side of the ship to the top of curvation camber at the center ship.

• Measurement at the both side of the ship through the stars on the sky.

• Measurement at the both side of the ship to the topmost of the ship.

• Curvation is absolute value, so just measure as a straight line.

Please indicate the picture that is "Flare" of ship.

• 
• 
• 

What is the advantages of Sheer of the ship?

• Increasing bouyancy. Especially, when the ship through the water at rough sea.

• Increasing curvation both at bow and astern for good decoration.

• Increasing ability when sailing the ship.

• Increasing maneuvering room of the ship.

If you are the white vessel, the 2 vessels as your back are target vessels.

What's direction that two target vessels coming to?

• All of target vessels are coming from our stern.

• All of target vessels are coming from our starboard quarter.

• one target vessel is coming from stern, and other one is coming from starboard quarter.

• All of above are incorrect.