Variation Deviation
What is variation?
Variation is the difference between True North and Magnetic North.
How many degrees are in 1 hour of time?
What is 15 Degrees
When two ships meet head on, or nearly, each ship must....
Change course to starboard and pas port-to-port
What is a buoy
Buoys, are, in effect, floating sign posts for the mariner.
What is deviation?
The amount that the compass is deflected from the magnetic meridian
What is the first step to calculating Zone Description
Divide longitude by 15
An overtaking vessel is one that is approaching another vessel from any dirction more than... degrees abaft its beam
What is 22.5 degrees
This buoy is buit such that the upper portion that you observe resembles a can. These buoys are unlighted and will be painted green or have green and red horizontal bands.
What is a can buoy
This is the point of reference for measuring declination
Celestial Equator
What is the process of correction for deviation
Swinging ship
What form would you use to compute sunrise and sunset?
Strip Form
What is the hiearchy of vessels?
Not under command, Restricted in Ability to Maneuver, Constrained by Draft, Engaged in Fishing, Sailing, Power Driven, Seaplane
Large navigational buoys are dusc-shaped buoys that may be as large as blank feet in diameter
What is 40 feet
What are 3 navigational aids
Lighthouse, buoys, fog signals, and day beacons
What are two types of magnetism
Permanent and induced
What is the first step to determine Star Time and Selected Stars using Pub 249 Vol 1 (Selected Stars)
How many parts are the International/ Inland Rules broken down to
BONUS: Double points for names
5 Parts
General, Steering and Sailing, Lights and Shapes, Sounds and Light Signals, and Exepmtions
What are the characteristics of a Spar Buoy
Cylindrical in shape and are often constructed from large logs, which are trimmed, shaped, and appropriately painted.
What do the following acronyms stand for;
GMT, UT, LMT, ZT, ZD
What is the acronym for correcting magnetic compass error?
Can Dead Men Vote Twice At Election
What information do you need to determine the height of tide
Date, Location, and Time
For destress signlas. The morose code for SOS is?
...---...
This buoy is unligthed and are round in shape.. These buoys are painted with red and white vertical stripes
What is a Spherical buoy
What are the two times in a Solar Day
Bonus: Define the two times in a solar day
Apparent Solar time- Is measured upon the basis of the apparent motion of the real Sun (The one you see rise and set everyday)
Mean Solar time- Based on a fictional Sun that is considered to move at a constant rate of 360 in 24 hours along the celestial meridian