When the（）is large, the ship is stiff; and when it is small,

When the________is large, the ship is stiff;and when it is small,she is tender.

A.GM

B.Free surface

C.Longitudinal center of gravity

D.transverse center of gravity

Logbooks are used to record the events occurring when ______.

A.the ship is in a harbor

B.the ship is at anchorage

C.the ship is underway

D.all of the above

When does a pilot say “ Make all lines fast”? ________

A.The ship is about to be in position

B.The ship is very close to the berth

C.The ship is on voyage

D.The ship is in position

All the following is true except that ______．

A.in many places a counter current flows in opposition to the main current close to the bank

B.current can vary with depth of water and large deep draught ships can experience different current effects at differing parts of the hull tend to turn to the wind

C.as speed is reduced，the increased proportion of the ship's vector which is attributable to current will set the ship close to obstructions

D.when close to the berth in a head current，there is a danger that flow inshore of the ship becomes restricted and the ship is subject to interactive forces

A quick and rapid motion of a ship in a seaway is an indication of a(n) ______.

A.large GM

B.high center of gravity

C.excessive free surface

D.small GZ

A slow and easy motion of a vessel in a seaway is an indication of a ______．

A.Small GM

B.Low center of gravity

C.Stiff vessel

D.Large GZ

● When a large packet wants to travel through a network whose MTU is too small, one solution is to allow routers to break up the packet into （）. （）A. messages B. frames C. fragments D. bits