The numeral in the center of a wind rose circle on a pilot chart indicates the __________.
A
total number of observations
B
average wind force on the Beaufort scale
C
average wind force in knots
D
percentage of calms
E
İlgili Sorular
If a severe storm threatens the COASTAL DRILLER while elevated, the setback in the derrick should b...BOTH INTERNATIONAL & INLAND Which vessel does NOT sound a fog signal of one prolonged followed by tw...When you are firing a pyrotechnic distress signal, it should be aimed at _______________.An IOPP Certificate on an inspected vessel is valid for what period of time?The full period of motion of the DEEP DRILLER while tripping is 10 seconds and the maximum pitch ang...