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How does the effect known as “bank suction” act on a single-screw vessel proceeding along a narrow channel?（）
A . It pulls the stern toward the bank
B . It heels the vessel toward the bank
C . It pushes the entire vessel away from the bank
D . It pulls the bow toward the bank
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A twin-screw vessel with a single rudder is making headway. The engines are full speed ahead. There is no wind or current. Which statement is FALSE? （）
A . If one screw is stopped，the ship will turn toward the side of the stopped screw
B . The principal force which turns the ship is set up by the wake against the forward side of the rudder
C . Turning response by use of the rudder only is greater than on a single-screw vessel
D . With the rudder amidships，the ship will steer a fairly steady course
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On a vessel making a voyage more than 48 hours long，regulations require that（）.
A . a lifeboat drill be held within 12 hours prior to departure
B . fire pumps be tested by starting within 12 hours prior to departure
C . the emergency generator and lighting system be tested by starting and operating within 12 hours prior to departure
D . the entire steering gear be tested within 12 hours prior to departure
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After your vessel has been involved in a casualty,you are required to make your logbooks,bell books,etc.,available to（）.
A . attorneys for opposition parties
B . marine surveyors
C . MSA officials
D . All of the above
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The Immigration and Naturalization Service is concerned with which document on a vessel making preliminary entry into a U.S. port from a foreign port?（）.
A . Cargo Manifest
B . Certified Crew List
C . Curio List
D . Shipping Article
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Two vessels are abreast of each other and passing port to port in a confined waterway. What should you expect as your bow approaches the screws of the other vessel? （）
A . Your speed will significantly increase
B . Your draft will significantly decrease
C . Your bow will sheer towards the other vessel
D . Your bow will sheer away from the other vessel
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A vessel is to make a voyage between New York and San Juan，Puerto Rico，and return. The crew should be signed on（）.
A . Coastwise Articles
B . Foreign Articles
C . Intercoastal Articles
D . no article
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On a twin-screw，twin-rudder vessel，the most effective way to turn in your own water，with no way on，is to put（）.
A . one engine ahead and one engine astern，with full rudder
B . one engine ahead and one engine astern，with rudders amidships
C . both engines ahead，with full rudder
D . both engines astern，with full rudder
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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 swinging
B . Turn her bow toward the dock
C . Turn her bow away from the dock
D . Head into the wind，regardless of the side the wind is o
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A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.
A . the masthead lights for a towing vessel
B . the lights for a vessel restricted in its ability to maneuver
C . sidelights，stern light and towing light
D . All of the above
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In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn（）.
A . to starboard
B . outboard from the center
C . to port
D . inboard toward the center
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A vessel fitted with twin screws is easier in（）than a vessel with single screw.
A . turning maneuver
B . course setting
C . position fixing
D . regulating speed
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0ur vessel’s propelled makes 120（）at full speed.
A . r.p.m
B . p.r.m
C . m.p.r
D . p.m.r
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In the event of a casualty to a vessel，who is responsible to make records available to the governmental official authorized to investigate the casualty? （）.
A . Officer in Charge Marine Inspection
B . The person who caused the casualty
C . The company man
D . The owner
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The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.
A . boss
B . knuckle
C . skeg
D . strut
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A single-screw vessel going ahead tends to turn more rapidly to port because of propeller（）.
A . discharge current
B . suction current
C . sidewise force
D . thrust
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A twin screw craft being used to pick up a person who has fallen overboard from a vessel should approach if you（）.
A . reverse port engine, apply right rudder
B . reverse port engine,rudder amidships
C . reverse starboard engine, apply right rudder
D . revers starboard engine, rudder amidshi
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While a ship with twin screw is making a turn, in order to prevent overload, the duty engineer should （）
A . reduce the fuel feeding of main engine of inner propeller
B . reduce the fuel feeding of main engine of outer propeller
C . firstly reduce the fuel of main engine of inner propeller, then reduce the fuel feeding of engine of outer propeller
D . reduce fuel feeding of two engines at the same time
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A towing vessel and her tow are severely restricted in their ability to change course. When making way，the towing vessel will show ONLY（）.
A . the masthead lights for a towing vessel
B . the lights for a vessel restricted in her ability to maneuver
C . sidelights，stern light，and towing light
D . All of the above
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Every vessel shall（）maintain a proper look-out by sight and hearing as well as by all available means appropriate in prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.
A . in fog
B . at night
C . in narrow fairway
D . at all time
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The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE?（）
A . The boat should be hoisted a few inches clear of the cradle before cranking out the davits
B . The inboard gripes should be cast off before the outboard gripes
C . The outboard section of the cradle must be released
D . The tricing pendants will automatically bring the boat alongside at the embarkation deck
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The effect known as bank cushion acts in which of the following ways on a single-screw vessel proceeding along a narrow channel? （）
A . It forces the bow away from the bank
B . It forces the stern away from the bank
C . It forces the entire vessel away from the bank
D . It heels the vessel toward the bank
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The sensors could be mounted on the inside of a tube/torus that could be anchored in a blood vessel, making the blood flow through the sensor array.
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You are on a single-screw vessel with a right-handed propeller.The vessel is going full speed astern with full right rudder.The bow will swing ______.
A.Quickly to port，then more slowly to port
B.Probably to port
C.Slowly to port，then quickly to starboard
D.Probably to starboard
