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Basic Powerboating, Safety and Rescue For Sailing Instructors 100% ACCURATE!!! £10.57   Add to cart

Exam (elaborations)

Basic Powerboating, Safety and Rescue For Sailing Instructors 100% ACCURATE!!!

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  • Module
  • Sailing Right!
  • Institution
  • Sailing Right!

hull speed - ANSWER maximum speed for displacement hulls, at which the hull is trapped between a large wave at its bow and another one at its stern semi-displacement - ANSWER speed in planing boats at which the hull goes through a transition stage and climbs the face of its bow wave. Boat is uns...

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  • September 30, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Sailing Right!
  • Sailing Right!
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Basic Powerboating, Safety and Rescue For
Sailing Instructors 100% ACCURATE!!!
hull speed - ANSWER maximum speed for displacement hulls, at which the hull is trapped between a
large wave at its bow and another one at its stern



semi-displacement - ANSWER speed in planing boats at which the hull goes through a transition stage
and climbs the face of its bow wave. Boat is unstable, fuel consumption is high, and operator cannot see
over raised bow.



plane - ANSWER point at which planing boats level off the top of the bow wave, use less fuel, and create
less waves



shapes of planing hulls - ANSWER flat, Vee, cathedral



directional stability - ANSWER ability to hold a steered course



RIB - ANSWER Rigid-Inflatable Boat



two components of powerboat propulsion - ANSWER engine and drive unit



two types of drive units - ANSWER propellor (prop) and water jet (jet drive)



thrust - ANSWER forward or backward motion created by prop



right-hand prop - ANSWER propellor that generates forward thrust rotating in a clockwise direction



left-hand prop - ANSWER propellor that generates forward thrust rotating in a counterclockwise
direction

, pitch - ANSWER distance that a prop would move forward in a solid material in one full rotation



rpm - ANSWER revolutions per minute




how two-strokes lubricate engine - ANSWER oil mixed into gasoline



steps of a four-stroke outboard - ANSWER intake stroke brings in gasoline and air, then compression
stroke, then power stroke (spark plug ignites compressed mixture), then exhaust stroke, which forces out
exhaust gases



primer pump - ANSWER replaces the traditional choke, injects small amount of fuel into cylinder when
key is pushed in



manual primer pump knobs - ANSWER must be pulled out an pushed back in to inject fuel



traditional choke - ANSWER reduces air supply in carburetor which enriches fuel-air mixture that enters
cylinder, making it easier to ignite



enrich - ANSWER to increase the proportion of fuel to air



tilt-lock release - ANSWER in "release" position in forward gear and "lock" in reverse; release allows
outboard to kick up if it hits an underwater object, lock prevents outboard from tilting up in reverse



kill switch - ANSWER point where safety lanyard attaches to, boat will not start if safety lanyard isn't
attached! And Kevin will fail you if you don't put the lanyard on!



twist grip throttle - ANSWER separate gearshift lever on the side of the motor, usually on small
outboards

, safety system if propellor hits object - ANSWER designed weak link between propellor and propellor
shaft to protect engine and drive train if propellor hits object



neoprene hub (safety sleeve) - ANSWER bonded to propellor hub, breaks when impact occurs to protect
outboard, usually enough friction in hub to allow prop to turn slowly and return to safety



shear pin - ANSWER soft metal pin on small outboards that break upon impact and must be removed
and replaced once pin is sheared of prop to turn again



lifting an outboard on the water - ANSWER tie boat (so it won't move around) and tie a retrieval line to
motor and boat in case dropped



steps of the outboard cooling system - ANSWER 1. water enters through cooling water intake

2. pushed up water feed tube (leg)

3. circulates through waterways in engine block

4. flows back down leg, some diverted through inspection outlet

5. mixes with exhaust gases

6. exits through propellor hub



air vent rule - ANSWER air vent must be open for fuel to flow to the outboard motor, will not start if it's
closed!!!



fueling procedure for diesel engines - ANSWER oil added separately to crank case



Oil Pollution Act of 1990 and the Clean Water Act - ANSWER it is illegal to discharge any petroleum
product into the water



civil penalty for discharging hazardous material - ANSWER $25,000 fine per day, per violation



criminal charge for NEGLIGENT violations of Oil Pollution Act of 1990 - ANSWER $2,500 to $25,000 fine
or imprisonment for one year, or both

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