8 - Coastal navigation Flashcards
what color on a chart signifies shallow water
deep blue
what does green color area on a chart indicate
dry during low tide
what does white color area on a chart mean
deep water
what color is used for land on a chart
yellow
chart abbreviations for
broken, chalk, high water, sand, stone, beacon, fine, rock , shells, tower, coarse, gravel, radio tower, soft, wharf
bk, chk, HW, S, St, Bn, f, R, Sh, Tr, c, G, Ra, so, Whf
draw the symbol for conical buoy, can buoy
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draw the symbol for starboard buoy, port buoy
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draw the symbol for isolated danger mark
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draw the symbol for north cardinal mark
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draw the symbol for dangeorus wreck with depth unknown
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how is a wreck with depth known indicate on a charted
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how is a fishing stoke/kelong indicated on a chart
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how does the symbol indicating radio report on a chart look like
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what is the name of the chart covering singapores area
GSP1
how many m is a NM
1852m
difference between variation and deviation in nautical terms
variation = difference between true north and magnetic north, deviation = each boats magnetic interference
in a compass rose, what is the outer ring and the inner ring
outer ring = true north, inner ring = magnetic compass
how many high and low tides in a day usually
2 high 2 low
what color is port and starboard hand marks
port is red, starboard is green
what colors is a preferred channel marker
pref channel to starboard: red-green-red
pref channel to port: green-red-green
what is the shape and color used to indicate isolated danger
2 black balls then black-red-black
what is the flashing light used for isolated danger mark if fitted
group of 2 flashing white lights
what is the shape used for safe water marker
red ball then red/white stripes
what is the shape used for special marks
yellow cross on top
draw the markers for N S E W cardinal marks
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light flashes to indicate the NSEW on cardinal marks
N = continuous flashing S = 6 short + 1 long E = 3 short W = 9 short
what are the 4 lighthouses in singapore
sultan shoal - west side
raffles - south
bedok - ECP
horseburgh - east
which flag is used to alert people of diving activity
Flag A
list 9 water skiing areas in singapore
3 locations in tuas near tuas checkpoint
sarimbun
lavis shoal near sembawang wharves
lowinger reef near pulau seletar
sungei seletar
sentosa near siloso beach
selat pauh
what direction is allowed for water skiing
counter clockwise
age requirement to be on boat to supervise water skiing
at least 15
launching of jetski is permitted at East coast park - T or F
F
how many meters to keep away from raffles lighthouse (pulau satumu)
300m
craft are permitted to enter bedok jetty - T or F
F, keep 30m away from bedok jetty
4 islands in singapore where diving is permitted
P hantu
P Jong
Sisters ialdn
St John island
speed limit in east johor strait?
12 knots
where is selat sengkir
between brani and sentosa - keep out
where is selegie beacon
south of sentosa, near sister fairway
where is cyrene reef situated
near west keppel fairway and Sinki fairway
where is P sebarok?
south of singapore near P hantu
P Pawai is a restricted area - T or F?
T
where is serangon harbour?
south of P ubin
wind surfing is allowed at serangoon harbour - T or F?
F
where is P senang and what does a red flag mean
southern islands, red flag = stay away during live firing
what does the flag A look like
white on the left, blue on the right with arrow indent
