更多"When changing from a compass course"的相关试题:
[单项选择]When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
A. The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headings
B. After the new heading is reached，the vessel should steam on that course for at least two minutes before the adjustment
C. During the course change，you should gently tap the compass to remove any error caused by friction on the pivot bearing
D. After steadying on the new heading，the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error
[单项选择]The apparent wind can be zero when the true wind is from（）.
A. ahead and equal to the ship's speed
B. astern and equal to the ship's speed
C. ahead and equal to twice the ship's speed
D. astern and equal to twice the ship's speed
[单项选择]Which statement is TRUE when comparing cold and warm fronts?（）
A. Cold fronts are more violent and of shorter duration
B. Cold fronts are milder and last longer
C. They are very similar with the exception of wind direction
D. Warm fronts are more violent and of longer duration
[单项选择]EXCEPT when suffering from a head or chest injury a patient in shock should be placed in which position?（）.
A. Head up and feet down
B. Head down and feet up
C. Flat on back with head and feet elevated
D. Arms above the head
[单项选择]When viewed from astern, if the propeller revolves in a clockwise direction when going ahead, it is known as （）.
A. ahead direction
B. astern direction
C. right-handed
D. left-handed
[单项选择]When transferring survivors from an enclosed lifeboat to a rescue vessel，personnel on board the boat should（）.
A. remove their life preservers to make it easier to climb on board the rescue vessel
B. climb on top of the boat while waiting for their turn to transfer to the rescue vessel
C. remain seated inside and make the transfer one person at a time
D. enter the water and swim over to the rescue vessel
[单项选择]When shall the stand-on vessel change course and speed?（）
A. the stand-on vessel may change course and speed at any time as it has the right of way
B. after the give-way vessel sounds one blast in a crossing situation
C. when action by the give-way vessel alone cannot prevent collision
D. when the two vessels become less than half a mile apart
[单项选择]When entering from seaward，a buoy displaying a single-flashing red light would indicate （）.
A. a junction with the preferred channel to the left
B. a sharp turn in the channel to the right
C. the starboard side of the channel
D. a wreck to be left on the vessel's port side
[单项选择]What is TRUE when operating in fog and other vessels are detected by radar?（）.
A. You should make an ample change to port for a vessel crossing on the starboard bow
B. You should maneuver in ample time if a close-quarters situation is developing
C. You should determine the course and speed of all radar contacts at six minute intervals
D. Long-range scanning will provide early warning of ALL other vessels within the radar's range
[单项选择]When viewed from above，the best position for the guy in relation to the boom is（）.
A. At a 45° angle
B. At right angles
C. 4 feet aft of the heel of the boom
D. Parallel to the boom
[单项选择]A true bearing of a charted object，when plotted on a chart，will establish a （）.
A. fix
B. line of position
C. relative bearing
D. range
[单项选择]When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
A. Should not exceed
B. Must be up to
C. Should exceed
D. Should be about
[单项选择]If in doubt as to the true water level when a boiler is being oil-fired, you should （）.
A. take no measures
B. extinguish the fire as soon as possible
C. feed water to the boiler
D. open the blow down valve
[单项选择]When approaching Block Island Sound from Long Island Sound，you will enter waters governed by the International Rules of the Road when you（）.
A. pass through The Race
B. cross the territorial sea boundary
C. exit Block Island Sound to the east or south
D. None of the above，as Long Island Sound is governed by the International Rules of the Road
[单项选择]When the water produced from most evaporator is supplied for drinking purpose, it must be treated to ensure it is biologically pure and （）.
A. slightly acidic
B. slightly alkaline
C. no salty
D. slightly bitter
[单项选择]Anchors are prevent from running out when secured by the（）.
A. brake
B. devil's claw
C. pawls
D. All of the above
[单项选择]Anchors are prevented from running out when secured by the（）.
A. brake
B. devil's claw
C. pawls
D. All of the above
[单项选择]When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.
A. look for a CO2 extinguisher
B. use a soda acid extinguisher
C. shut off the fuel supply
D. smother the fire with rags
