OODP1 Final exam study guide
questions and correct answers latest
review
Inertia - ANS A property of matter that causes it to resist changes in its state of motion.
Momentum - ANS The product of the mass and velocity of an object.
Pivot Point at Rest - ANS At rest, the pivot point will be at the geometric center of the
ship.
Pivot Point with Ahead Bell - ANS With ahead bell, the pivot point will be 1/3 ship's
length from the bow.
Pivot Point from All Stop to Ahead - ANS From all stop to ahead, the pivot point will be
all the way forward on the bow.
Pivot Point Going Astern - ANS Going astern, the point will be about ¼ ship's length
from the stern.
Pivot Point at Anchor - ANS At anchor, the pivot point will be on the bow at the
hawsepipe.
Effect of Force from Pivot Point - ANS The further the force is from the pivot point, the
more effect it will have.
Pressure Areas in Deep Water - ANS In deep water, high pressure is on the bow, low
pressure is on the sides.
Velocity and Pressure Relationship - ANS Pressure and velocity are inversely
related—higher velocity yields lower pressure.
, Controllable Forces - ANS The 6 controllable forces are Lines, Anchors, Tugs,
Thrusters, Engines, Rudders.
Uncontrollable Forces - ANS The 2 uncontrollable forces are Wind and current.
Semi-Controllable Forces - ANS Shallow water effects, bank cushion and suction, and
passing ship effects.
Labeling Lines - ANS Lines are labeled based on location, direction the line leads, and
purpose.
Breast Lines Purpose - ANS Breast lines prevent lateral movement.
Spring Lines Purpose - ANS Spring lines prevent movement forward or aft along the
pier.
Reverse thrust - ANS The shaft of a fixed pitch screw must stop.
Fixed pitch screw - ANS A type of screw that does not allow for variable pitch
adjustments.
Controllable pitch screw - ANS A screw that allows for pitch adjustments to control
thrust direction.
Rudder - ANS A device that must have flow of water over it to turn effectively.
Advance - ANS The distance traveled along the original course before a ship reaches a
new course.
Transfer - ANS The distance traveled perpendicular to the original course before a ship
reaches a new course.
Shallow water effects - ANS Causes a larger turning radius, lesser rate of turn, lesser
speed loss in turns, lesser astern engine effectiveness, greater coasting distance, and
greater directional stability.
Bank cushion - ANS A wedge of water builds up between the ship and a nearby bank,
forcing the bow out sharply.
questions and correct answers latest
review
Inertia - ANS A property of matter that causes it to resist changes in its state of motion.
Momentum - ANS The product of the mass and velocity of an object.
Pivot Point at Rest - ANS At rest, the pivot point will be at the geometric center of the
ship.
Pivot Point with Ahead Bell - ANS With ahead bell, the pivot point will be 1/3 ship's
length from the bow.
Pivot Point from All Stop to Ahead - ANS From all stop to ahead, the pivot point will be
all the way forward on the bow.
Pivot Point Going Astern - ANS Going astern, the point will be about ¼ ship's length
from the stern.
Pivot Point at Anchor - ANS At anchor, the pivot point will be on the bow at the
hawsepipe.
Effect of Force from Pivot Point - ANS The further the force is from the pivot point, the
more effect it will have.
Pressure Areas in Deep Water - ANS In deep water, high pressure is on the bow, low
pressure is on the sides.
Velocity and Pressure Relationship - ANS Pressure and velocity are inversely
related—higher velocity yields lower pressure.
, Controllable Forces - ANS The 6 controllable forces are Lines, Anchors, Tugs,
Thrusters, Engines, Rudders.
Uncontrollable Forces - ANS The 2 uncontrollable forces are Wind and current.
Semi-Controllable Forces - ANS Shallow water effects, bank cushion and suction, and
passing ship effects.
Labeling Lines - ANS Lines are labeled based on location, direction the line leads, and
purpose.
Breast Lines Purpose - ANS Breast lines prevent lateral movement.
Spring Lines Purpose - ANS Spring lines prevent movement forward or aft along the
pier.
Reverse thrust - ANS The shaft of a fixed pitch screw must stop.
Fixed pitch screw - ANS A type of screw that does not allow for variable pitch
adjustments.
Controllable pitch screw - ANS A screw that allows for pitch adjustments to control
thrust direction.
Rudder - ANS A device that must have flow of water over it to turn effectively.
Advance - ANS The distance traveled along the original course before a ship reaches a
new course.
Transfer - ANS The distance traveled perpendicular to the original course before a ship
reaches a new course.
Shallow water effects - ANS Causes a larger turning radius, lesser rate of turn, lesser
speed loss in turns, lesser astern engine effectiveness, greater coasting distance, and
greater directional stability.
Bank cushion - ANS A wedge of water builds up between the ship and a nearby bank,
forcing the bow out sharply.
