Light List Flashcards
The light list lists every ATON maintianed or under the authority of the USCG.
Some buoys without lateral significance, such as special purpose, anchorage, fish net, or dredging are not included The correct answer is: False
Private ATON which are legally required to be established by the USCG 1. Class I 2. Class II 3. Class III
The correct answer is: Number 1 Class I
Private ATON located in waters used by general navigation. 1. Class I 2. Class II 3. Class III
The correct answer is: Number 2 Class II
Private ATON located in waters not ordinarily used by general navigation. 1. Class I 2. Class II 3. Class III
The correct answer is: Number 3 Class III
ATON are arranged _____ in geographic order. 1. clockwise 2. counterclockwise
If there is no route leading to seaward, ATON are generally arranged clockwise around land masses. The correct answer is: Number 1 clockwise
RACONs are listed…. 1. BOLD UPPERCASE 2. Bold Lowercase 3. UPPER CASE 4. Italicized 5. Lowercase
The correct answer is: Number 1 BOLD UPPERCASE
Seacoast and Secondary Lights are listed…. 1. BOLD UPPERCASE 2. Bold Lowercase 3. UPPER CASE 4. Italicized 5. Lowercase
The correct answer is: Number 2 Bold Lowercase
Sound Signals are listed…. 1. BOLD UPPERCASE 2. Bold Lowercase 3. UPPER CASE 4. Italicized 5. Lowercase
The correct answer is: Number 2 Bold Lowercase
River, Harbor and Other Lights are listed…. 1. BOLD UPPERCASE 2. Bold Lowercase 3. UPPER CASE 4. Italicized 5. Lowercase
The correct answer is: Number 3 UPPER CASE
Lighted Buoys are listed…. 1. BOLD UPPERCASE 2. Bold Lowercase 3. UPPER CASE 4. Italicized 5. Lowercase
The correct answer is: Number 4 Italicized
Daybeacons and Unlighted Buoys are listed…. 1. BOLD UPPERCASE 2. Bold Lowercase 3. UPPER CASE 4. Italicized 5. Lowercase
The correct answer is: Number 5 Lowercase
The notice to mariners contains all available chart correction information.
Some small craft local information is only available in the LNM. The correct answer is: False
Weekly Notice to Mariners are prepared by jointly by the USCG and _____ and ____.
NGA and NOS
Charts and Coast PIlots are published by _____. 1. NOS 2. NOAA 3. USCG 4. NIMA
The correct answer is: Number 1 NOS
All U.S. waters are covered by IALA-B.
Possessions West of the Dateline and south of 10 N are IALA-A The correct answer is: False
A white buoy with a open faced orange diamond signifies…. 1. Danger 2. Exclusion Zone 3. Certain Operating Restrictions
The correct answer is: Number 1 Danger
A white buoy with an orange vertical diamond having a cross centered in it signifies…. 1. Danger 2. Exclusion Zone 3. Certain Operating Restrictions
The correct answer is: Number 2 Exclusion Zone
A white buoy with an orange circular shape signifies…. 1. Danger 2. Exclusion Zone 3. Certain Operating Restrictions
The correct answer is: Number 3 Certain Operating Restrictions
An ATON that is permenently fixed to the earth’s surface is a ______.
beacon
Ice over the lights of an ATON can make a colored light appear _____ in color.
White
The observed intensity of a light can be used as a reliable indicator of distance.
The correct answer is: False
Sectors in the light list are bearings from the light to the observer.
They are bearings from the observer to the light. The correct answer is: False
Sectors in the light list are bearings from the light to the observer.
They are bearings from the observer to the light. The correct answer is: False
Some atmospheric conditions such as haze or smoke can give a white light a ___ hue.
You could have answered with any of the following: 1. red
____ sectors are use to mark obstruction areas.
You could have answered with any of the following: 1. red
The cut-off of light sectors are accurate enough for navigation.
They are approximate. The correct answer is: False
Oil well structures are listed in the light list.
The correct answer is: False
Only ATON with red or green lights have lateral significance.
The correct answer is: True
Lights with lateral significance may display lights with _____ rhythems 1. flashing 2. quick 3. isophase 4. occulting 5. AlWR 6. Group Flashing
The correct answer is: Number 1 flashing and Number 2 quick and Number 3 isophase and Number 4 occulting
Pillar, Spar, Lighted, Sound in themselves convey lateral significance.
Number, color, light charactaristics convey meaning. The correct answer is: False
Sound signals activated by keying a VHF radio normally operate for _____ minutes.
You could have answered with any of the following: 1. 30 2. thrity
Clearance gauges are located on the _____ bridge pier. 1. left 2. right
The correct answer is: Number 2 right
Which branch of the military maintains GPS 1. USN 2. USAF 3. USMC 4. USA 5. USCG
The correct answer is: Number 2 USAF
A minimum of ____ GPS satelites are needed for a two dimentional fix.
You could have answered with any of the following: 1. three 2. 3
DGPS is accurate _____. 1. At any distance when in range of the transmitter 2. When closer to the transmitter 3. When at least 5nm from the transmitter
The correct answer is: Number 2 When closer to the transmitter
Flashing lights do not normally exceed ____ flashes per minute
You could have answered with any of the following: 1. thrity 2. 30
Special flashing lights may have fixed or flashing light rhythm, but ____ is prefered. 1. fixed 2. flashing
The correct answer is: Number 2 flashing
Information and regulatory marks may show a white light with any rhythm but _____ 1. Isophase 2. Flashing 3. Flashing (2) 4. Morse ‘A’ 5. Quick Flashing 6. Occulting
The correct answer is: Number 3 Flashing (2) and Number 4 Morse ‘A’ and Number 5 Quick Flashing
At locations where a distinct caution signal is needed (sharp turns, obstructions) ______ is used. 1. Isophase 2. Flashing 3. Flashing (2) 4. Morse ‘A’ 5. Quick Flashing 6. Occulting
The correct answer is: Number 5 Quick Flashing
Only lateral ATON are numbered
The correct answer is: True
Numbers used with lateral ATON may have a letter as a _______. 1. prefix 2. suffix
The correct answer is: Number 2 suffix
The letter ‘C’ in a dayboard description signifies a ______.
You could have answered with any of the following: 1. crossing
The letter ‘J’ in a dayboard description signifies a ______.
You could have answered with any of the following: 1. junction
The letter ‘K’ in a dayboard description signifies a ______.
You could have answered with any of the following: 1. range
The letter ‘M’ in a dayboard description signifies a ______.
You could have answered with any of the following: 1. safe water
The letter ‘N’ in a dayboard description signifies a ______.
No lateral significance
The letter ‘S’ in a dayboard description signifies a ______.
You could have answered with any of the following: 1. square
The letter ‘T’ in a dayboard description signifies a ______.
You could have answered with any of the following: 1. triangle
The characteristics of a light can appear to change as the distance to the light changes.
The correct answer is: True
Ranges may only display white lights
The correct answer is: False
If lateral lights or marks are used to mark a bridge opening then the adjacent piers are marked with ______ lights. 1. white 2. yellow 3. flashing 4. red
The correct answer is: Number 2 yellow
If lateral marks are used to mark a bridge span, a safe water mark may be used. Its light rhythm will be _______. 1. Occulting 2. Flashing 3. Morse ‘A’ 4. Morse ‘B’
The correct answer is: Number 1 Occulting
The draw span of a floating bridge may be marked with a yellow diamond and a yellow light with a _____ rhythm. 1. Occulting 2. Flashing 3. Morse ‘A’ 4. Morse ‘B’
The correct answer is: Number 4 Morse ‘B’
Clearance gauges at a span indicate…. 1. available depth of water 2. available vertical clearance
The correct answer is: Number 2 available vertical clearance
RACONs may only be used on non-laterally significant ATON.
They may be used on both lateral and non-lateral aids. The correct answer is: False
All RACONs on operate only in the ‘X-band’
They all operate in the ‘X-band’ and some operate in the ‘S-band’ also. The correct answer is: False
The nominal range of a Racon is ____ to ____ nautical miles. 1. 4-6 2. 6-8 3. 7-9 4. 8-10
They may be seen 17nm when mounted at 50’. The correct answer is: Number 2 6-8
The use of FTC will ______ the return seen from a RACON. 1. increase 2. decrease
The correct answer is: Number 2 decrease
RACONs can be measured presisely at the point which the RACON begins.
Normally about 50 meters from the actual ATON, due to response delay. The correct answer is: False
GPS consists of a network of _____ satelites.
You could have answered with any of the following: 1. 24 2. twenty four
GPS provides horizontal accuracy of ____ meters ____% of the time 1. 15, 90 2. 16, 90 3. 17, 95 4. 18, 95
The correct answer is: Number 3 17, 95
DGPS range is 40 - ____ nautical miles
You could have answered with any of the following: 1. 300
DGPS range is ____ - 300 nautical miles
You could have answered with any of the following: 1. 40 2. fourty
DGPS operates at 285 to ___ kHz
285-325 You could have answered with any of the following: 1. 325
DGPS operates at ___ to 325 kHz
285-325 You could have answered with any of the following: 1. 285
DGPS offers accuracy of 1-____ meters
You could have answered with any of the following: 1. five 2. 5
Uses electricity of compressed air to vibrate a disc diaphragm.
Horn
A group of saucer shaped bells used to produce different tones.
Gong
Sound produced by means of a slotted piston moved back and forth by compressed air.
Diaphone If ‘two-tone’ the second tone is lower pitched
Sound produced by hammers operated by electricity or wave movement.
Bell
Sound signal which uses electricity or compressed air to actuate either a disc or cup shaped rotor.
Siren
A wave actuated sound signal which produces sound by emitting compressed air through a circumferential slot into a cylindrical bell chamber.
Whistle
The greatest range that a light can be expected to be seen given its nominal range and meteorological conditions.
Luminous Range
The greatest range an object can be seen due to the curvature of the earth.
Geographic Range
A low intensity light that may be mounted on the structure of another light to enable the mariner to keep the latter light in sight when passing out of its beam during transit.
Passing Light
A light which successive groups in a period have different number of flashes.
Composite Group Flashing Fl (2+1)
A light which successive groups in a period have different number of eclipses.
Composite Group Occulting Oc (2+1)
A light in which a group of eclipses, specified in numbers, is regularly repeated.
Group-Occulting Oc (2)
A light in which a group of flashes, specified in numbers, is regularly repeated.
Group-Flashing Fl (2)
