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5-48 .
5-49.
5-50 .
5-46.
Your ship is heading north at 15
knots and true wind is blowing from
t h e s o u t h a t 2 0 k n o t s , w h a t i s t h e
relative wind speed?
1.
5 Kn
2.
15 Kn
3.
20 Kn
4.
35 Kn
5-47.
Your ship is heading 225° at 5
knots,
a n d t h e r e l a t i v e w i n d i s
blowing on your starboard bow
( 0 7 0 ° R ) a t 1 7 k n o t s . W h a t i s t h e
apparent wind speed and direction?
1.
070° at 22 Kn
2.
155° at 12 Kn
3.
225° at 5 Kn
4.
295° at 17 Kn
Anemometer indicates which type of
wind?
1.
Actual
2.
True
3.
Apparent
4.
R e l a t i v e
What is the maximum wind speed
indicated on a handheld anemometer?
1.
60 Kn
2.
70 Kn
3.
80 Kn
4.
100 Kn
When visual estimation of wind
speed is being used, what is meant
b y f e t c h a r e a ?
1.
Area where waves are being
generated by current
2.
Area where swells are being
generated by wind
3.
Area where waves are being
generated by wind
4.
Area where swells are being
generated by current
IN ANSWERING QUESTIONS 5-51 THROUGH 5-56,
SELECT FROM COLUMN B THE CHARACTERISTIC
THAT MATCHES THE SEA CONDITION LISTED IN
COLUMN A.
RESPONSE WILL BE USED MORE THAN
ONCE.
5-51.
5-52.
5-53.
5-54.
5-55.
5-56.
A. SEA CONDITION B. CHARACTER-
ISTICS
Gentle breeze
1. Moderately
high winds
Gale
2. Gale
48-55 knots
3. Very high
7-10 knots
waves with
long
Storm
overhanging
c r e s t s
34-40-knots
4. Large
wavelets,
c r e s t s
b e g i n t o
break
5-57.
Which publication contains
information on figuring true wind?
1.
H.O. Pub 17
2.
P u b 2 1 7
3.
Pub 1310
4.
P u b 1 5 1
5-58.
What is the Fahrenheit equivalent
to 23° Celsius?
1.
71
2.
72.1
3.
73.4
4.
77.5
5-59.
W h a t i s t h e C e l s i u s e q u i v a l e n t o f
47° Fahrenheit?
1.
5.7°
2.
8.3°
3.
8.7°
4.
9.3°
31
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