Boats and Streams - Aptitude Test Tricks, Formulas & Shortcuts

New boaters may feel overwhelmed by the sheer volume of different types of boats and all of their intended uses. There are a multitude of categories, segments and sub-segments with literally thousands of boat builders, brands, hull types and models to choose. A hull is the watertight frame or body of a ship or boat, exclusive of its deck, propulsion system, fittings and rigging. Boat hulls vary significantly in shape, size and design, which often determines their best application.

They can be made out of various materials including fiberglass, aluminum, wood or steel. Although boat and stream basic concept guide are many variants, below are the major categories of hull types:. A hull that has almost no deadrise angle between the horizontal plane at the keel and the surface of the hull. Flat hulls are stable in calm water and usually have a very shallow draft i.

A combination of deep forward and flatter aft sections. This combination has benefits of both of the. A hull bottom that remains in the water at all speeds. Displacement hulls are usually on slower boats like sailboats and trawlers.

A hull that rises up and glides on top of the water at high speed. Planing hulls are designed to move fast when enough power is supplied. Boats with multiple hulls connected by a deck. Multihulls can have two or three hulls. Catamarans are a popular form of multihull boats. Powerboats are propelled by one or more motors, which are usually combustion engines, although more electric motors are in use today. Inboard engines are inside the boat with an appendage protruding from the bottom of the hull that is attached to a propeller.

These appendages are usually fixed shafts or they can be pod drives with directional thrust. Outboard motors are self-contained engines that have an attached propeller. Outboards are mounted on the transom aft end of the boat. Although you can enjoy most activities on most boats, we have grouped designs by typical use.

Fishing boats can be designed for either fresh or saltwater use and run the gamut in terms of size and equipment, which is usually dictated by the species of fish they will hunt. Some fishing boats are flat bottom hulls designed to carry one to three anglers primarily in protected waters, while larger sport fishing boats or sportfishers may be deep-v hulls that can run hundreds boat and stream basic concept guide miles offshore and accommodate multiple people onboard for overnight ventures.

Most have a deep-V hull forward with flatter aft sections so they can get on plane quickly and remain somewhat stable during fishing. Their layout helps anglers move about easily, walking from bow to stern, especially when they have a fish on.

Center consoles are powered by outboard engines one to Aptitude Boats And Streams Concepts Jp six and can be feet or longer. Usually feet, bass boats are primarily used for freshwater fishing. With a V-hull and low freeboard hull sides they are used on lakes and rivers and powered by outboard motors that get boat and stream basic concept guide hulls up on plane.

With very shallow drafts, flats boats run feet and are generally powered by an outboard motor. However, in extremely shallow water, they can also be propelled by a push pole. Family fun boats for lakes, rivers or the coast are used for numerous activities from fishing to towing and weekending to entertaining.

With seating area in boat and stream basic concept guide open bow just ahead of the helm, bowriders can be feet or. Most run feet but can be longer.

Distinguished by a small cabin forward, cuddy cabin boats can accommodate a bed or a toilet. With a wide and flat deck, these boats have a V-hull forward and plenty of seating space on deck aft. They can be aluminum or fiberglass and have outboard or sterndrive propulsion. Similar to deck boats in their intended purpose, boat and stream basic concept guide boats have two or three hulls usually made of aluminum although a few have been built of fiberglass.

Very stable and beamy widepontoon boats are powered by one or two outboards and are designed for entertaining on lakes and rivers. They have become very popular due to their space and newly acquired speed with some being able to run in excess of 60 mph. With no single purpose, Boat And Stream Previous Year Questions Java runabouts can be used for fishing, cruising, water sports and as tenders to larger yachts.

They can get into shallow water and are boat and stream basic concept guide used for water sports. Jet boats can be bow riders or even center consoles. A generic term, towboats refer to wakeboarding, skiing and wake surfing boats. Designed specifically for water sports, towboats are trailerable and have powerful inboard engines. Some towboats can be ballasted differently to create different size and shape of wakes for slalom skiing, trick skiing or wakeboarding.

Motor yachts are powerboats with one to three engines and often luxurious accommodations for extended overnighting. Most of these larger vessels are built on semi-displacement hulls. With at least one cabin and head, coastal cruisers have full accommodations including a substantial galley and stowage space. With enclosed helms ahead of the living space, pilothouse boats are designed to run in rough seas or inclement weather. They can have an open flybridge with a second helm station above and start around 30 feet.

More of a design statement than boat and stream basic concept guide use issue, Downeast boats were developed in New England and are also called lobster boats.

They can be used for day boating, entertaining or cruising and usually have accommodations for overnighting. The design has become popular with numerous brands building to the Downeast aesthetic. They can have semi-displacement or planing hulls. Trawlers take their name from the old commercial fishing boats.

Today, however, trawlers are slow, fuel-efficient, displacement boats with comfortable accommodations that are used for distance boat and stream basic concept guide under power. They can be as small as feet. With two hulls, powercats can be used for a variety of adventures. Most cruising powercats have twin inboards, exceptional accommodations and run feet. However, smaller powercats can come with two outboard engines and are used for fishing providing a more stable platform for anglers.

Tenders are commuter boats that are used to go from the mothership to shore and. Typically, tenders are powered by outboard engines, which are gas, propane or electric. Some tenders are rowed. Typically feet, dinghies may have removable inflatable, wooden or aluminum floors and inflatable tube sides you can sit on. RIBs have inflatable tube sides and aluminum or fiberglass floors that are permanently attached to the tubes.

They can be feet or. Made of wood, aluminum or fiberglass, rigid dinghies can be rowed or sailed thereby combining tender and toy functionality.

Utility boats are tough workboats made of aluminum with outboard engines and generally planing hulls. Recreationally, they may be used for fishing or other activities. Small flat-bottomed utility boats designed for shallow waters, jon boats are feet boat and stream basic concept guide and can be made of aluminum or fiberglass. Similar to jon boats, skiffs are good for shallow water and may be driven by an outboard boat and stream basic concept guide a tiller or via a steering console.

They can also be rowed. This is a mix of boats with varying uses. Basically a power race boat, high-performance boats are built for speed. They have no accommodations to keep them light and can be feet. Powerplants engine choices vary and can be inboard or outboard.

They have full, home-style accommodations and function more like barges. On some lakes and rivers, they can be rented for a week of pseudo-camping.

They can carry one to four people and can go in excess of 60 mph. Sailboats are designed to be moved by the wind and may have one sail up to many sails. Smaller sailboats are usually propelled strictly by sails while larger ones may have an inboard or outboard engine called an auxiliary to move them if there is no wind or when maneuvering in close quarters.

Sailboats have deep fixed keels or centerboards that can be moved up and down depending on the point of sail. Sailboats with centerboards can be trailered more easily than those with fixed keels.

There are many kinds of sailboats and they carry different rigs masts, supporting shrouds and stay, and sail combinations.

Sloops have one mast and generally two sails � a mainsail and a headsail called a jib or genoa. If there are two headsails, the boat is usually called a cutter rig. Ketches have two masts with the aft mast shorter than the main mast. A schooner can have two or three masts with the forward-most one being shorter. Once you understand the different options available, you can make an educated choice when shopping for new or used sailboats boat and stream basic concept guide sale from a private seller or boat dealer.

Small sailboats usually under 12 feet that can be very basic with only one sail. Some sailing boat and stream basic concept guide, however, can be quite technologically Boat And Stream Basic Questions Kit advanced, have a mainsail and headsail and can carry a large sail called a spinnaker.

These types of sailing dinghies are often used for racing. Sailing dinghies can be sailed singlehanded or carry multiple crew for fun or racing. Larger sailboats that are usually used for a day of sailing or racing are called daysailers. These tend to be feet although some can be quite long and complex. Race boats are usually built light so they can move with little wind. They can be designated for protected waters like lakes and rivers or for offshore use on the ocean.

Aptitude Questions, Test Formulas and Tricks. Boats and Streams is an essential topic for many competitive exams. Boats and Streams. Let us know. The types of questions that can be expected from quantitative aptitude section of boats and streams include following. Question The speed of the boat in the still water is 6 kpmh, and the speed of the stream is 2 kmph.
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