ASA 104 PAST PAER 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔When in weather helm, you must hold rudder at a _______ angle to ensure the boat
goes straight - ✔✔large
***Also, this works because the large angle in the rudder causes drag and slows the
boat
✔✔Preventer - ✔✔a line or tackle rigged to the boom to prevent an accidental gybe
while running
✔✔Can depower sails by decreasing the sails' angle of _________, adding _______
and flattening the sails - ✔✔Attack, twist
✔✔Skipper - ✔✔responsible for the safety of the crew and boat and can delegate tasks
to an experienced crewmember
✔✔4 items of emergency equipment that should be on board and accessible: -
✔✔PFDs, fire extinguishers, horn, VHF radio
✔✔Sunset Rule - ✔✔If it's 3 hours to sunset, you have 13 miles to go and can sail at 4
knots, turn on the motor.
✔✔Dodger - ✔✔A canvas protection in front of the cockpit of some boats that is
designed to keep spray off the skipper and crew.
✔✔Seacock - ✔✔a valve designed for marine use
✔✔Battery Charger - ✔✔converts 110 volt AC to 12 volt DC power to charge the
batteries
✔✔Anemometer - ✔✔An instrument used to measure wind speed
✔✔Drive Train - ✔✔engine and prop and everything in between
✔✔Transmission - ✔✔found aft of the engine, has a dipstick, for checking level of
transmission fluid.
✔✔Running Gear - ✔✔everything aft of transmission to the prop
✔✔Shaft Coupling - ✔✔connects transmission and prop shaft
✔✔Stern Tube - ✔✔how prop shaft exits boat
, ✔✔Shaft Seal - ✔✔prevents seawater backing up into boat via stern tube
✔✔Stuffing Box - ✔✔packing material is compressed around the shaft and a constant
slow drip of water when shaft is turning keeps it and packing cool.
✔✔Dripless Seal - ✔✔no water should be present; on newer boats
✔✔Propeller Strut - ✔✔supports prop shaft, uses cutlass bearing
✔✔Lubrication - ✔✔require regular oil and oil filter changes. check oil level daily
✔✔Engine Cooling - ✔✔require effective cooling systems, especially since they are low
in boat w/limited air circulation. Most have a 2-part system, w/an internal freshwater
jacket and an external raw-water system to cool jacket water.
✔✔Internal Cooling System - ✔✔Cooled by an anti-freeze and freshwater mix,
thermostat restricts coolant flow and allows engine to reach operating temp. Once
operating temp. is reached, thermostat opens and allows full coolant flow.
✔✔Raw-Water Cooling System - ✔✔Jacket coolant cannot be cooled by radiator, so
instead the coolant passes through a heat exchanger that is cooled by raw water.
✔✔Exhaust System - ✔✔Since exhaust is hot and poisonous, the raw water after it has
cooled fresh water, is injected into the gases. Then it typically goes through a muffler
and is discharged overboard.
✔✔Fuel Tank - ✔✔Has fill pipe and vent to maintain atmospheric pressure; holds fuel
✔✔Primary Filter - ✔✔Removes dirt and separates water
✔✔Lift Pump - ✔✔Draws the diesel from the tank
✔✔Secondary Filter - ✔✔2nd filter mounted on engine
✔✔Injector Pump - ✔✔Forces fuel into cylinders at high pressure via the injectors
✔✔Returned Fuel - ✔✔Fuel not used in a cycle
✔✔Masthead Rig - ✔✔Makes it possible for the forestay to be attached at the masthead
✔✔Fractional Rig - ✔✔Forestay will be attached some distance below the masthead.
✔✔Pinching - ✔✔pointing too high, causes the sails to luff and the boat to slow down
SOLUTIONS RATED A+
✔✔When in weather helm, you must hold rudder at a _______ angle to ensure the boat
goes straight - ✔✔large
***Also, this works because the large angle in the rudder causes drag and slows the
boat
✔✔Preventer - ✔✔a line or tackle rigged to the boom to prevent an accidental gybe
while running
✔✔Can depower sails by decreasing the sails' angle of _________, adding _______
and flattening the sails - ✔✔Attack, twist
✔✔Skipper - ✔✔responsible for the safety of the crew and boat and can delegate tasks
to an experienced crewmember
✔✔4 items of emergency equipment that should be on board and accessible: -
✔✔PFDs, fire extinguishers, horn, VHF radio
✔✔Sunset Rule - ✔✔If it's 3 hours to sunset, you have 13 miles to go and can sail at 4
knots, turn on the motor.
✔✔Dodger - ✔✔A canvas protection in front of the cockpit of some boats that is
designed to keep spray off the skipper and crew.
✔✔Seacock - ✔✔a valve designed for marine use
✔✔Battery Charger - ✔✔converts 110 volt AC to 12 volt DC power to charge the
batteries
✔✔Anemometer - ✔✔An instrument used to measure wind speed
✔✔Drive Train - ✔✔engine and prop and everything in between
✔✔Transmission - ✔✔found aft of the engine, has a dipstick, for checking level of
transmission fluid.
✔✔Running Gear - ✔✔everything aft of transmission to the prop
✔✔Shaft Coupling - ✔✔connects transmission and prop shaft
✔✔Stern Tube - ✔✔how prop shaft exits boat
, ✔✔Shaft Seal - ✔✔prevents seawater backing up into boat via stern tube
✔✔Stuffing Box - ✔✔packing material is compressed around the shaft and a constant
slow drip of water when shaft is turning keeps it and packing cool.
✔✔Dripless Seal - ✔✔no water should be present; on newer boats
✔✔Propeller Strut - ✔✔supports prop shaft, uses cutlass bearing
✔✔Lubrication - ✔✔require regular oil and oil filter changes. check oil level daily
✔✔Engine Cooling - ✔✔require effective cooling systems, especially since they are low
in boat w/limited air circulation. Most have a 2-part system, w/an internal freshwater
jacket and an external raw-water system to cool jacket water.
✔✔Internal Cooling System - ✔✔Cooled by an anti-freeze and freshwater mix,
thermostat restricts coolant flow and allows engine to reach operating temp. Once
operating temp. is reached, thermostat opens and allows full coolant flow.
✔✔Raw-Water Cooling System - ✔✔Jacket coolant cannot be cooled by radiator, so
instead the coolant passes through a heat exchanger that is cooled by raw water.
✔✔Exhaust System - ✔✔Since exhaust is hot and poisonous, the raw water after it has
cooled fresh water, is injected into the gases. Then it typically goes through a muffler
and is discharged overboard.
✔✔Fuel Tank - ✔✔Has fill pipe and vent to maintain atmospheric pressure; holds fuel
✔✔Primary Filter - ✔✔Removes dirt and separates water
✔✔Lift Pump - ✔✔Draws the diesel from the tank
✔✔Secondary Filter - ✔✔2nd filter mounted on engine
✔✔Injector Pump - ✔✔Forces fuel into cylinders at high pressure via the injectors
✔✔Returned Fuel - ✔✔Fuel not used in a cycle
✔✔Masthead Rig - ✔✔Makes it possible for the forestay to be attached at the masthead
✔✔Fractional Rig - ✔✔Forestay will be attached some distance below the masthead.
✔✔Pinching - ✔✔pointing too high, causes the sails to luff and the boat to slow down
