更多"The short-long dashed，magenta lines"的相关试题:
[单项选择]The charts show two dashed lines crossing the river justsouth of St. Catherine Bar Light. What does this indicate? （）
A. Overhead power lines
B. Louisiana-Mississippi ferry crossings
C. Two railroad trestles
D. Two submerged oil pipelines
[单项选择]The broken magenta lines（long and short dashes）in and around Mobjack Bay indicate（）.
A. Amphibious training areas
B. Grounds for dredge spoil
C. Fish trap areas
D. Gunnery exercise areas
[单项选择]Areas enclosed by a long and short dashed magenta line indicate （）.
A. cable areas
B. dumping grounds
C. fish trap areas
D. precautionary areas
[单项选择]The short-long dashed magenta line around Gardiners Island marks（）.
A. A regulated anchorage
B. Fish trap areas
C. An area closed to the public
D. Underwater cables
[单项选择]The broken magenta line which runs parallel to the shorebetween Roanoke Point and Mattituck Inlet marks a（）.
A. fish trap area
B. pipeline
C. demarcation line
D. cable area
[单项选择]A Chinese stopper（two lines）will hold best when you（）.
A. fasten the bitter ends to the mooring line with half hitches
B. twist the ends together and hold them in the direction of the pull
C. twist the ends together and hold them in the direction opposite to the pull
D. twist the ends together and hold them at right angles to the mooring line
[单项选择]Isogonic lines are lines on a chart indicating （）.
A. points of equal variation
B. points of zero variation
C. the magnetic latitude
D. magnetic dip
[单项选择]What is the significance of the broken magenta lines which roughly parallel the shore between Roanoke Point and Orient Point on Long Island（）.
A. They mark the limits of breakers in that area
B. These lines warn the mariner of submerged rocks
C. They mark the boundary lines of fish trap areas
D. These lines warn the mariner of submerged pipelines
[单项选择]Which aid is NOT marked on a chart with a magenta circle? （）
A. Aero light
B. Radar station
C. Radar transponder beacon
D. Radiobeacon
[单项选择]The division of kilowatt load between two paralleled alternators is determined by the （）
A. amount of field excitation of the leading machine
B. load-speed characteristics of the governors
C. amount of field excitation to the lagging machine
D. type of alternator
[单项选择]Frapping lines（）.
A. secure the lifeboat in the davits when in the stowed position
B. bring the lifeboat close alongside the rail in the embarkation position
C. give the occupants a safety line when the boat is being lowered from the embarkation level
D. reduce the swinging of the lifeboat at the embarkation level
[单项选择]The distance a vessel moves parallel to the original course from the point where the rudder is put over to any point on the turning circle is called the（）.
A. advance
B. drift angle
C. pivoting point
D. transfer
[单项选择]When carrying out a parallel track search pattern，the course of the search units should normally be which of the following?（）
A. In the same direction as the anticipated drift
B. In the opposite direction of the anticipated drift
C. Perpendicular to the line of anticipated drift
D. Downwind
[单项选择]You are attempting to parallel two AC generators, and the syncope pointer is revolving in the fast directionThis indicates that the frequency of the incoming machine is （）.
A. higher than the bus frequency
B. lower than the bus frequency
C. the same as the bus frequency but out of phase with it
D. the same as the bus frequency and the circuit breaker may be closed at any pointer position
[单项选择]You are attempting to parallel two AC generators and the synchroscope pointer is revolving in the slow directionThis indicates that the frequency of the incoming machine is （）.
A. higher than the bus frequency
B. lower than the bus freouencv
C. the same as the bus frequency but out of phase with it
D. the same as the bus frequency, and the circuit breaker may be closed at any pointer position
[单项选择]The total power consumed in a parallel circuit is （）
A. the sum of the powers used in each load (resistor)
B. divided by the number of loads
C. always less than the power used in the smallest load
D. the sum of the powers used in each individual load never more than the power used in the largest load
[单项选择]The total resistance of a parallel circuit is always （）.
A. larger than the greatest branch resistance
B. smaller than the lowest branch resistance
C. equal to the sum of the individual branch resistances
D. one-half the sum of the individual branch resistances
[单项选择]You are running parallel to the coast and estimate that the current is against you.In plotting a running fix using bearings from the same object on the coast，the greatest safety margin from inshore dangers will result if what speed is used to determine（）.
A. Minimum speed estimate
B. Maximum speed estimate
C. Average speed estimate
D. A running fix should not be used under these conditions
