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29 RBS BOAT CREW STUDY GUIDE EXAM QUESTIONS WITH COMPLETE ANSWERS
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29 RBS BOAT CREW STUDY GUIDE EXAM QUESTIONS WITH COMPLETE ANSWERS
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29 RBS BOAT CREW STUDY GUIDEEXAM QUESTIONS WITH COMPLETE
ANSWERS
How do you report surface contacts? - Object, Bearing, Range
How do you report air contacts? - object, bearing, position angle, range
What senses do you use as a lookout? - Sight, Smell, and Hearing
What is Zenith? - Position Angle of 90 Degrees
CBDR - Constant Bearing Decreasing Range (possible collision"
What is the proper response to a helm command? - repeat command followed by "aye".
Once on course let command know "steering 120 degrees".
Explain a VS search. - search pattern used for man over board where you will steer on
a datom. Turn right on 120 degrees and datom is on leg 3,6, and 9.
What is a lubber line and what is it used for? - line on a compass that shows the
direction you are facing.
Standard helm commands. - -Steer right 90 degrees aye, steering right 90 degrees.
-Midships (bring rudder angle 0 degrees).
Cantinary - Dip in the line.
Shock Load - when a lot of force is suddenly exerted on the line.
Yaw or yawing - when one boat veers from one side to the other which can cause one
or both boats to capsize.
Veering - Boat moves in a direction
In Step - The tow boat keeps the proper position with the boat being towed.
What are some types of deck fittings? - Sampson Post, Bollard, Cleats, Open Chock,
Closed Chock.
backing plates - reinforced plate used to back a deck fitting
, what is a bridle? - A device attached to a vessel in order for another vessel to tow it. "Y
Bridle".
What is the max degrees of the legs of a bridle? - 30 degrees
What is the purpose of a pennant? - reduces wear and chafing at the towline end.
What is the max speed with the tow mast installed? - 8 knots
What is "Tow "1 and "Tow 2"? -
What is tending the tow line and slacking the tow line? - working the line and either
loosening the line.
Safe towing speed? - based on waterline length hull shape and weather.
equation is 1.34 x square root of waterline length
What is the p6 pump rated for? - 250 gallons a minute
Equilibrium: Center of Gravity/ Center of Buoyancy - Equilibrium: is when the center of
buoyancy acting upward is bellow the center of gravity acting downward. Gravity: is the
downward force. Buoyancy: is the upward force on the hull of the boat.
What are the two types of stability? - Longitudinal and Transverse
what are the two forces that affect stability - Static: adding weight in the boat. Dynamic:
outside forces like wind and waves.
Free surface affect - movement of water or liquid from side to side.
what is free communication with the sea? - when there is a hole in the boat and water is
moving in and out.
what is down flooding? - flooding of a vessels hull or compartments from water on the
deck.
what is progressive flooding? - additional flooding of spaces which where not previously
assumed to be damaged.
What is the Fire Tetrahedron? - Heat, Fuel, Oxygen, and Chemical Chain Reaction.
Class Alpha Fire? - Ordinary Combustibles (paper, wood, plastics)
- smoke white and grey.
- water and pkp
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