更多"In a twin screw ship going half-ahe"的相关试题:
[单项选择]In a twin screw ship going half-ahead，both screws turning outboard and the rudder amidships，no current or wind，the vessel will（）.
A. Move bodily to port
B. Move bodily to starboard
C. Move in a zig-zag motion
D. Steer a fairly straight course
[单项选择]A twin-screw ship going ahead on the otarboard screw only tends to move（）.
A. in a straight line
B. to port
C. from side to side
D. to starboard
[单项选择]A twin-screw ship going ahead on the starboard screw only tends to move（）.
A. in a straight line
B. to port
C. from side to side
D. to starboard
[单项选择]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
[单项选择]While moving ahead，a twin-screw ship has an advantage over a single-screw ship because （）.
A. correct trim will be obtained more easily
B. drag effect will be cancelled out
C. side forces will be eliminated
D. speed will be increased
[单项选择]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
[单项选择]A twin screw vessel，making headway with both engines turning ahead，will turn more readily to starboard if you（）.
A. reverse port engine，apply right rudder
B. reverse port engine，rudder amidships
C. reverse starboard engine，apply right rudder
D. reverse starboard engine，rudder amidships
[单项选择]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
[单项选择]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
[单项选择]A vessel is equipped with twin propellers，both turning outboard with the engines half ahead. If there is no wind or current and the rudders are amidships，what will happen?（）
A. The bow will swing to starboard
B. The bow will swing to port
C. The vessel will steer a zigzag course
D. The vessel will steer a fairly straight course.
[单项选择]A new ocean going ship of 2000 gross tons having an inoperative oily water separator may dispose of its bilge slops by （）.
A. holding its slops onboard until they can be pumped into the city sewer system
B. circulating them through the lube oil purifier to remove water and debris
C. holding its slops onboard until they can be discharged to a shore side reception facility
D. pumping them into a settling tank for separation before pumping the oily water residue overboard
[单项选择]A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n)（）.
A. forward spring line and going slow ahead on the inboard engine
B. after spring line and going slow astern on the outboard engine
C. forward spring line and going slow ahead on both engines
D. forward spring line and going slow ahead on the outboard engine
[单项选择]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 amidships
[单项选择]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
[单项选择]A twin-screw vessel is easier to maneuver than a single-screw vessel because the twin-screw vessel（）.
A. permits the rudder to move faster
B. generates more power
C. can turn without using her rudder
D. can suck the water away from the rudder
