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单选题
On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put（）.
A
full ahead
B
full astern
C
half ahead
D
slow astern
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Your vessel has completed an inspection for certification and is issued a Temporary Certificate of Inspection. The Temporary Certificate ______.A.has the full force of the regular Certificate of InspectionB.expires six months after it is issuedC.must be exchanged for a regular Certificate of Inspection within 3 monthsD.is retained in the custody of the Master
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A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?A.When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may resultB.When going directly from full ahead to full astern，there is complete steering controlC.When the vessel has headway and the propeller is in neutral，there is no effect on rudder controlD.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
考题
The force exerted by a propeller which tends to throw the stern right or left is called ______.A.slipB.sidewise forceC.rotational forceD.thrust
考题
That ______ is not caused by shallow water．A.turning ability deterioratesB.virtual mass increasesC.the effect of the propeller transverse thrust on yaw altersD.the ship will turn with its head towards the wind
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The correction to KG for longitudinal free surface effects for a vessel can be found by dividing the vessel's displacement into the ______．A.Transverse free surface correction for the vesselB.Sum of the vertical moments of the vesselC.Sum of the longitudinal free surface moments of the vesselD.Longitudinal centerline of the vessel
考题
On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put ______．A.full aheadB.full asternC.half aheadD.slow astern
考题
Aboard a vessel, dividing the sum of the transverse moments by total weight yields the vessel’sA.vertical momentsB.transverse position of the center of gravityC.inclining momentsD.righting moments
考题
For a vessel inclined by the wind, multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the ______.A.righting momentB.longitudinal momentC.transverse momentD.vertical moment
考题
螺旋桨有四个桨叶。 （）A、The helm has four blades.B、The propeller has forty blades.C、The windlass has four blades.D、The propeller has four blades.
考题
单选题A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）.A
When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may resultB
When going directly from full ahead to full astern，there is complete steering controlC
When the vessel has headway and the propeller is in neutral，there is no effect on rudder controlD
When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
考题
单选题That（）is not caused by shallow water.A
turning ability deterioratesB
virtual mass increasesC
the effect of the propeller transverse thrust on yaw altersD
the ship will turn with its head towards the wind
考题
单选题0n a single-screw vessel the stern frame（）.A
furnishes support to the rudder, propeller shaft, and transom frameB
provides foundations for after mooring winchesC
provides foundation for the main propulaion enginesD
transfers the driving force of the propller to the hull
考题
单选题On a single-screw vessel the stern frame（）.A
furnishes support to the rudder，propeller shaft，and transom frameB
provides foundations for after mooring winchesC
provides foundations for the main propulsion enginesD
transfers the driving force of the propeller to the hull
考题
单选题What is the definition of transverse metacenter?（）A
The distance between the actual center of gravity and the maximum center of gravity that will still allow a positive stabilityB
The point to which G may rise and still permit the vessel to possess positive stabilityC
The sum of the center of buoyancy and the center of gravityD
The transverse shift of the center of buoyancy as a vessel rolls
考题
单选题Typical marine propulsion plants include（） directly coupled to the vessel’s single large-diameter, fixed-pitch propeller.A
a single, long-stroke, slow-speed, turbocharged, two-stroke diesel engineB
a single, long-stroke, medium-speed, turbocharged, four-stroke diesel engineC
two medium-speed, turbocharged, four-stroke diesel enginesD
a variable-speed AC generator
考题
单选题A single-screw vessel going ahead tends to turn more rapidly to port because of propeller（）.A
discharge currentB
suction currentC
sidewise forceD
thrust
考题
单选题The force exerted by a propeller which tends to throw the stern right or left is called（）.A
slipB
sidewise forceC
rotational forceD
thrust
考题
单选题Sidewise force of the propeller tends to throw a vessel’s stern to the right or left，depending on rotation. This force is caused by（）.A
back current from the rudderB
greater pressure on the right or left side of the propeller，depending on rotationC
lower pressure on the right or left side of the propeller，depending on rotationD
torque from the velocity and angle at which the surrounding water impinges upon the propeller blades
考题
单选题Transverse stability calculations require the use of（）.A
hog or sag calculations or tablesB
hydrostatic curvesC
general arrangement plansD
cross-sectional views of the vessel
考题
单选题Your vessel has completed an inspection for certification and is issued a Temporary Certificate of Inspection. The Temporary Certificate（）.A
has the full force of the regular Certificate of InspectionB
expires six months after it is issuedC
must be exchanged for a regular Certificate of Inspection within 3 monthsD
is retained in the custody of the Master
考题
单选题螺旋桨有四个桨叶。 （）A
The helm has four blades.B
The propeller has forty blades.C
The windlass has four blades.D
The propeller has four blades.
考题
单选题For a vessel with transverse inclination，an increase in GMT causes（）.A
list to stabilize at an angle of lollB
list to decreaseC
trim to decreaseD
list to increase
考题
单选题By which of the following means is force efficiently provided to vary the pitch of the blades on a modem controllable pitch propeller?（）A
HydraulicB
MechanicalC
PneumaticD
Electrical
考题
单选题You are landing a single-screw vessel，with a right-hand propeller，starboard side to the dock.When you have approached the berth and back the engine，you would expect the vessel to （）.A
Lose headway without swingingB
Turn her bow toward the dockC
Turn her bow away from the dockD
Head into the wind，regardless of the side the wind is on
考题
单选题When a vessel has positive stability，the distance between the line of force through B and the line of force through G is called the（）.A
metacentric heightB
righting armC
righting momentD
metacentric radius
考题
单选题In vessel construction, beam are transverse girders which provide support to（）.A
bulkheadsB
deckhouse structuresC
decksD
vertical frames
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