full ahead
full astern
half ahead
slow astern
第1题：
The force exerted by a propeller which tends to throw the stern right or left is called ______.
A.slip
B.sidewise force
C.rotational force
D.thrust
第2题：
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 vessel
B.Sum of the vertical moments of the vessel
C.Sum of the longitudinal free surface moments of the vessel
D.Longitudinal centerline of the vessel
第3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 Inspection
B.expires six months after it is issued
C.must be exchanged for a regular Certificate of Inspection within 3 months
D.is retained in the custody of the Master
第4题：
螺旋桨有四个桨叶。 （）
第5题：
Aboard a vessel, dividing the sum of the transverse moments by total weight yields the vessel’s
A.vertical moments
B.transverse position of the center of gravity
C.inclining moments
D.righting moments
第6题：
That ______ is not caused by shallow water．
A.turning ability deteriorates
B.virtual mass increases
C.the effect of the propeller transverse thrust on yaw alters
D.the ship will turn with its head towards the wind
第7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
第8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 result
B.When going directly from full ahead to full astern，there is complete steering control
C.When the vessel has headway and the propeller is in neutral，there is no effect on rudder control
D.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
第9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 moment
B.longitudinal moment
C.transverse moment
D.vertical moment
第10题：
When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may result
When going directly from full ahead to full astern，there is complete steering control
When the vessel has headway and the propeller is in neutral，there is no effect on rudder control
When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM