Shiphandling and Maneuvering Flashcards
The vessel will anchor with Pilot onboard. You are the duty on bridge. What is your main duty?
Check the position only
The use of ship’s whistle to communicate with tug(s) is common in ports of USA. One long blast means:
Come ahead dead slow
The under-keel allowance may be laid down by a competent authority or determined on board when planning the passage. Such an allowance is expressed as:
depth below the keel of the ship when moving
The type of property which is in tuning but the shafts reverse always in the same direction, the astern power being obtained by reversing the pitch of the screw, is commonly known as.
controllable pitch propeller
The turning circle of a vessel making a turn of over 360° is the path followed by the:
center of gravity
The turning circle of a ship is the path followed by the:
pivoting point
The term “shift the rudder” means ________.
change from right (left) to left (right) rudder an equal amount
The tension on anchor cable increases so that the angle of the catenary to the seabed at the anchor reaches 10°. How will this affect the anchor in sandy soil?
it will reduce the holding power
The single turn method of returning to a man overboard should be only if ______.
the vessel is very maneuverable
The ship movement where the pivot point plays a part:
rotational
The ship is in a sharp turn and the log shows sideways motion to port both forward and aft. Where is the “pivot point” located?
Outside the ship itself
The scope of chain to be used depends upon several factors except:
size of the vessel
The rudders are amidships and both screws are going ahead. What will happen if the starboard screw is stopped?
The bow will go to starboard
The rudder is in hard over position ,propeller stopped . The ship is turning slowly. What can we do to make her turn faster without increasing forward speed?
Give a kick ahead
The rudder is hard over , full ahead in shallow water. How much lift force remains when he engine stopped?
About 10%
The rudder is hard over , full ahead in deep water . How much lift force remain when the engine is stopped.
About 20%
The proper way to approach a downstream lock where there is an out draft is to be _______.
close in to the land wall, keeping the stern in at all times
The point at which helm must be applied to achieve a required course alteration is:
wheel over position
The pivoting point of a fully loaded vessel with normal trim proceeding ahead at sea speed is:
one-third of the length of the vessel from the bow
The pivoting point of a vessels going ahead is situated:
About one -third of the vessel’s length from the bow
The owner or Master of a towing vessel shall ensure that each person that directs and controls the movement of the vessel can accomplish all of the following except:
reduce speed only where local speed limits are posted
The most favorable condition to encounter when dock your vessel is when the wind and current are:
parallel to the pier from ahead
The maximum rudder angle on your ships is 35% degrees. Do you think this is the angle that the ruder is most effective?
No, most effective rudder angle is about 25 to 30 degrees. This is because he rudder is “ stalling” at 35 degrees angle
The maneuver which will return your vessel in the shortest time to a person who has fallen overboard is ______.
A single turn with hard rudder