How
Which
How about
What
第1题：
You are on a 165-foot (50.3 meters) long vessel with a draft of 9 feet (2.7 meters) and twin screws. Which statement about rescuing a survivor in the water with ship pickup is TRUE?
A.You should stop to windward of the man and drift down on him
B.You should stop with the man on your weather beam and twist the ship up to him
C.A pickup off the weather bow gives maximum maneuverability with the least possibility of injury to the man
D.Ship pick up should never be used with a shallow draft vessel
第2题：
You are doing a Williamson turn．Your vessel has swung about 60° from the original course heading．You should ______．
A.Put the rudder amidships and check the swing
B.Stop the engines and prepare to maneuver to pick up the man in the water
C.Shift your rudder
D.Increase to maximum speed
第3题：
In moving forward, a ship imparts forward motion to the water at the stems, this is known as _____.
A.the speed of the vessel
B.the speed of the propeller
C.the wake
D.the wake fraction
第4题：
In determining a safe speed, the Rules list all of the following as factors which must be taken into account EXPECT the ______.
A.limitations of radar equipment
B.presence of background lights at night
C.maximum horsepower of your vessel
D.maneuverability of your vessel
第5题：
You are on a 50.3 meters long vessel with a draft of 2.7 meters and twin screws．Which statement about rescuing a survivor in the water with ship pickup is TRUE ________．
A.You should stop to windward of the man and drift down on him
B.You should stop with the man on your weather beam and twist the ship up to him
C.A pickup off the weather bow gives maximum maneuverability with the least possibility of injury to the man
D.Ship pick up should never be used with a shallow draft vessel
第6题：
Your ship must {speed up}．
A.reduce speed
B.increase speed
C.change speed
D.stop engine
第7题：
Your radar is set on a true motion display．Which of the following will NOT appear to move across the PPI scope ________．
A.Echoes from a buoy
B.Own ship's marker
C.Echo from a ship on the same course at the same speed
D.Echo from a ship on a reciprocal course at the same speed
第8题：
Propeller pitch speed minus ship speed divided by the propeller pitch speed is termed ___.
A.apparent slip
B.true slip
C.pitch
D.propulsive efficiency
第9题：
In determining a safe speed of your ship, _____ shall not be among those taken into account.
A.the state of visibility
B.the traffic density
C.the number of crew on board
D.the maneuverability of the vessel
第10题：
从水线到船底是“吃水”。（）