ASA 114 Review Questions Flashcards
A tripod rig refers to the arrangement of a forestay and _____ that support the mast without the need for a ______
shrouds, backstay
A forward projection of the bridgedeck designed to soften the impact of the seas is call a _____.
nacelle
On catamarans without fixed keels, a _____ slides vertically through a trunk in each hull to provide lateral resistance an dimproved performance when sailing to ______.
daggerboard; windward
A catamaran’s _____ is derived from teh buoyancy in its two widely separated hulls. Even so, care must be taken to avoid overloading, and to distrute weight ____.
stability, evenly
Located on teh forward crossbeam, the ____ _____ provides reinforcement to counter the effect of forestay tension.
seagull striker
The downward force of the catamaran’s mast is supported by the center _____ integrated into the bridgedeck structure. The mainsett traveler is often mounted over teh ______ crossbeam.
crossbeam, aft
A typical cruising catamaran sail plan consists of a large ____-_____ mainsail and a roller-furling jib.
fully-battened
When a catamaran’s steering wheel is turned, the ______ operate together becuase they are connected by a tie rod. They are smaller than those on a monohull, but their efficiency is increased due to the lack of _______.
rudders, heeling
Name four systems or components that must be duplicated on a catamaran:
engines; running gear, cooling, exhaust, electrical, fuel, bilge pumps
An engine’s _____ battery is generally colocated with that engine and charged by an ______ on the same engine.
starting; alternator
Take care to ensure that levels in the _____ and _____ tanks are balanced, especially if they are located away from the boats’ centerline.
freshwater, fuel
ss heeling makes preparing meals easier on a catamaran than on a monohull, but it’s still advisable to take _____ to avoid burns and _____.
precautions, scalds
Identify the following parts of a catamaran: seagull-striker; Ramp/catwalk, Trampoline, Bridgedeck, Forward crossbeam, Deckhouse, Keel, Diamond stays, Spreader/strut, Mainsheet traveler, Forestay, Topping lift
The catamaran’s fully-battened mainsail is very heavy; hoisting is made easier by using a halyard with _____ ______.
2:1 purchase (block/tackle?)
When sailing to windward, the high profile of a catamaran creates _____ that slows boat speed. Combined with its increased ______ due to shoal-draft keels, this requires a catamaran to sail at ______ angles and _____ boat speeds than a monohull to achieve a good VMG.
windage; leeway; wider; faster
Trimming the mainsail for best close-hauled performance, it is best to center the boom with the ______ and then use the ______ to trim the sail for optimum twist.
traveler, mainsheet
Due to its large mainsail, the catamaran is susceptible to weather -vaning if boat speed is to low when _____. If the boat stalls, the jib may be ______ to assist the turn.
tacking; backed
The key to effective tacking is to have best possible boat speed, be close-hauled, turn the wheel ______ ease the traveler a little and quickly trim the _____ on the new side. Building _____ is important before trimming the _____ onto the new close-hauled course.
steadily, jib, speed, mainsail
The catamaran’s faster ____ ____ exaggerates the _____ wind speed and angle, whih affect how a catamaran sailor should steer and trim.
boat speed, apparent
When sailing to windward, daggerbboards should be _____ to reduce leeway. When sailing downwind, daggerboards should be _____ to reduce drag and turbulence.
Lowered, raised
When sailing downwind, find your course for best downwind VMG by sailing a ______ course and noting boat speed and apparent wind speed on different headings.
slalom
When jibing a catamaran, it’s important to jibe ______ and use the traveler and mainsheet to ontrol the large ______.
slowly, mainsail
A lack of heeling and reduced weather helm reduce the sensory cues that indicate when to reef. onsult the manufacturere’s charts that recommend the _____ _____ at which to reef. ______ state and approaching squalls should also be factored into the skipper’s decision.
wind speeds. Sea
To maintain better control when sailing in gusty conditions, _____ _____ in gusts when sailing to windward, and ______ _____ when sailing downwind.
head up, bear away
The large size of the catamaran, which can cause difficulties when docking or maneuvering under power, is greatly overcome by the use of its _____ screws.
twin
Slow-speed maneuvering is enhanced by using _____ power and direction of thrust, which moves the pivot point toward the _____ with least thrust.
differential, hull
Care must be taken when slow-speed maneuvering under power in windy conditions due to the shoal _____ and the _____ of the high freeboard and large deckhouse.
keels, windage
Motorsailing with one engine saves ______ but affects the _______ of the boat.
fuel ; balance
Rudders become ineffective at low speeds. Therefore, when docking a catamaran, center the ______ and maneuver the boat with the two ______.
wheel, engines
Name four of the steps involved to safely hoist and secure a dinghy in davits:
- Close fuel tank vent
- Remove loose gear
- Position dinghy under davits
- Lower hoisting lines
- Attach shackles to lifting point
- Remove drain plug
- Exit dinghy
- Raise evenly
- Cleat off tackle
- Secure bow and stern lines
- Check for chafe
Dinghy boarding is conveniently done at the _____, which offers a low step to embark. Remember to maintain three _____ ______ _____ at all times.
transom, points of contact
When picking up a mooring buoy, prepare the _______ lines in advance and approach directly ______ or into the current, aiming to pick up the mooring buoy just inside the bow
bridle; upwind
or picking up a mooring buoy goes far more smoothly if the person at the bow uses a set of agreed ______ ______ to communicate with the helm.
hand signals
The purpose of the _____ is to keep an anchor or mooring ball centered between the two hulls.
bridle
Name four features of catamaran structure and performance that affect Man Overboard recovery.
- Higher speeds
- Lack of windward performance
- Pronounced leeway
- Helm visibility
- High freeboard
- Propellers close to the surface
The key to avoiding a Man Overboard situation is to keep the crew safely on board by rigging ______ and using ______.
jacklines and tethers
One of the primary causes of catamaran capsize is being ______ because of having too much ____ _____
overpowered; sail set
List five post-capsize response procedures
- Headcount check
- Injuries
- Secure crew to inverted boat
- Secure ditch bag and life raft
- Salvage what you can
- Send distress signals
New terminology: bridgedeck; Nacelle; Bridgedeck clearance; Deckhouse; Escape hatch; Crossbeam; Ramp/catwalk; Trampoline; Seagull striker; Dolphin striker; Tripod rig; Diamond stays; Roach; Fixed keel vs. Daggerboard; Twin-screw; Gray water vs. Black water;
Length of an anchoring bridle
Boat length / 3
Rode scope for catamaran
(Freeboard + depth) x 5
Amount of chain needed when anchoring (formula)
Scope length - bridle length
Before mooring among other boats, what should you do with the dinghy?
Tie is up close out of the way
