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单选题
A navigator fixing a vessel’s position by radar （）.
A
should never use radar bearings
B
should only use radar bearings when the range exceeds the distance to the horizon
C
can use radar information from one object to fix the position
D
must use information from targets forward of the beam
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更多 “单选题A navigator fixing a vessel’s position by radar （）.A should never use radar bearingsB should only use radar bearings when the range exceeds the distance to the horizonC can use radar information from one object to fix the positionD must use information from targets forward of the beam” 相关考题
考题
The common way to obtain your ship’s position is ______.A.keeping a close watch and lookoutB.taking a radar range and bearingC.observing a radar target and listening to signalsD.keeping a well clear caution
考题
A vessel’s position should be plotted using bearings of ______.A.buoys close at handB.fixed known objects on shoreC.buoys at a distanceD.All of above
考题
Aboard a vessel, dividing the sum of the longitudinal moments by total weight yields the vessel’s ______.A.inclining momentsB.righting momentsC.vertical momentsD.longitudinal position of the center of gravity
考题
Approaching a anchorage in fog, you hear one short, one prolonged, and one short blast in that sequence on a ship’s whistle. This indicates ______.A.A vessel towedB.A vessel not under command and unable to maneuver.C.A vessel anchored giving warning of her position.D.A vessel stopped dead in the water.
考题
If ______ is shut down for an extended time optimum position fixing will take up to 2 hours after power is reapplied.A.radarB.DFC.Satellite NavigatorD.Automatic Omega Navigator
考题
单选题The common way to obtain your ship’s position is（）.A
keeping a close watch and lookoutB
taking a radar range and bearingC
observing a radar target and listening to signalsD
keeping a well clear caution
考题
单选题If（）is shut down for an extended time optimum position fixing will take up to 2 hours after power is reapplied．A
radarB
DFC
Satellite NavigatorD
Automatic Omega Navigator
考题
单选题You created a report from the human resources department based on all the columns in the EMP table. After viewing the report users requested that the cmp_ID columns peers first in the output. How would you change the position of the column?（）A
After the query. B
Enter the report and change the column's position in the field tab. C
Alter the column's position in the object navigator. D
Enter the report wizard and change the column's position in the data tab. E
Alter the column's position within its group and change the layout.
考题
单选题Which conditions will normally cause a SART to operate in the active mode?（）A
It will respond only to interrogation by 9-Ghz radar signalsB
A SART will normally respond to interrogation from a searching vessel's radar if the radar antenna is at least 15 meters highC
A SART will normally respond to interrogation from a searching aircraft's radar if the radar's output power is at least 10，000 watts and the aircraft is at a height of 3000 feet and within 30 nautical milesD
All of the above
考题
单选题A navigator fixing a vessel’s position by radar （）.A
can use radar information from one object to fix the positionB
should never use radar bearingsC
should only use radar bearings when the range exceeds the distance to the horizonD
must use information from targets forward of the beam
考题
单选题Which signal is detected as originating from a SART?（）A
The Morse code distress series S-O-S repeated 3 times followed by DE and the vessel's call signB
A line of blip code on a radar screen outward from the SART's position along its line of bearingC
A line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearingD
None of these
考题
单选题A position that is obtained by applying estimated current and wind to your vessel’s course and speed is a(n) （）.A
estimated positionB
dead reckoning positionC
fixD
None of the above
考题
单选题Magnetic variation changes with a change in（）.A
the vessel's headingB
sea conditionsC
seasonsD
the vessel's position
考题
单选题Which statement is true concerning a vessel equipped with operational radar?（）.A
The Master of the vessel must be on the bridge when the radar is in useB
The radar equipment is only required to be used in restricted visibilityC
The use of a radar excuses a vessel from the need of a look-outD
This equipment must be used to obtain early warning of risk of collision
考题
单选题Aboard a vessel, dividing the sum of the vertical moment by the total weight yields the vessel’s（）.A
vertical momentB
transverse position of the center of gravityC
inclining momentD
righting moment
考题
单选题A position obtained by applying ONLY your vessel’s course and speed to a known position is a （）.A
fixB
dead-reckoning positionC
running fixD
probable position
考题
单选题What does a SART signal sound or look like?（）A
It transmits SOS and the vessel's name and position in slow speed Morse CodeB
It will appear on a radar unit's PPI as a line of dots radiating outward with the innermost dot indicating the SART's positionC
It will appear on a radar unit's PPI as a line of dots radiating outward with the outermost dot indicating the SART's positionD
None of the above
考题
单选题The correct method of switching off a marine radar is to turn power switch to（）position first，then to（）position.A
off／standbyB
standby／offC
standby／closeD
close／standby
考题
单选题A position obtained by applying only your vessel’s coures and speed to a known position is a（）.A
dead-reckoning positionB
fix B.estimated positionC
probable positionD
running fix
考题
单选题Which of the following statements is TRUE regarding automatic identification systems (AIS)? （）A
AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position，course，speed and other safety related information to all those with similar equipment in the areaB
AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position，course，speed and other safety related information to all those with similar equipment in the areaC
AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position，course，speed and other safety related information to all those with similar equipment in the areaD
AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position，course，speed and other safety related information to all those with similar equipment within the area
考题
单选题A vertical shift of weight to a position above the vessel’s center of gravity will（）.A
increase reserve buoyancyB
decrease the righting momentsC
decrease KGD
increase KM
考题
单选题A position obtained by applying only your vessel’s course and speed to a known position is a （）.A
dead-reckoning positionB
fixC
probable positionD
running fix
考题
单选题A vessel’s position should be plotted using bearings of（）.A
buoys close at handB
fixed known objects on shoreC
buoys at a distanceD
All of the above
考题
单选题You determine your vessel’s position by taking a range and bearing to a buoy.Your position will be plotted as a（n）（）.A
Running fixB
FixC
Dead-reckoning positionD
Estimated position
考题
单选题The effect of free surface on initial stability depends upon（）.A
the amount of liquid in the compartmentB
the dimensions of the liquid surface and the vessel's displacementC
only the length of the compartmentD
the vertical position of the liquid in the vessel
考题
单选题Which statement is TRUE concerning a vessel equipped with operational radar?（）.A
She must use this equipment to obtain early warning of risk of collisionB
The use of a radar excuses a vessel from the need of a look-outC
The radar equipment is only required to be used in restricted visibilityD
The safe speed of such a vessel will likely be greater than that of vessels without radar
考题
单选题What does EPIRB stand for? （）A
Emergency Position Indicating Radar BuoyB
Electronic Pulse Indicating RadiobeaconC
Emergency Position Indicating RadiobeaconD
None of the above
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