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Worksheets2.2 BM: WOOD
Total questions: 25
Worksheet time: 18mins
Included in Common Hardwood Timber Group 1, a very popular tropical wood has tones that range from yellow to red. Widely distributed throughout the Philippines, but unfortunately, is in short supply.
Dao
Yakal
Tanguile
Narra
These are cracks or lengthwise separation across the annual rings of growth caused by irregular shrinkage during drying.
Split
Checks
Wane
Shakes
Commercial size of wood panels
4ft X 8ft
4ft X 6ft
4ft X 10ft
4ft X 12ft
This is the process by which warm moist air or superheated steam is used to heat the wood and drive out its moisture content.
Which of the following is not a type of composite panel board?
Gypsum board
Ficem board
Medium Density Fiberboard (MDF)
Laminated lumber
These are large structural wood members formed by gluing many layers of thinner wood together under pressure.
Laminated Lumber
Hardboard
MDF
Gypsum board
Which of the following is a brand of gypsum board?
Lawanit
Celotex
Boral
Masonite
Refers to the finished lumber which is further cut and processed at a lumber mill.
Joinery
Millwork
Carpentry
Plywood
Made by bonding together wood particles with an adhesive under heat and pressure to form a rigid board with a relatively smooth surface, often faced with veneer.
MDF
Acoustic Fiber Board
Chipboard
Fiber-Cement Boards
A type of board with small particles compressed and bonded into a single layer
Panel hardboard
Oriented Strand Board
Waferboard
Particleboard
Most common veneered wood panel.
Marine plywood
Plywood
Form Plywood
Ordinary Plywood
The finished size known as (a) is therefore smaller and already planed either on two (S2S) or all four sides (S4S)
(a) is the size of lumber (rough dimensions) when it is cut from the log.
Type of lumber usually used for beams, lintels, columns, posts.
Timber
Dimension lumber
Board lumber
Strip lumber
The process of removing moisture from green wood.
Wood poisoning
Seasoning
Preservation
Air-Drying
(a) refers from shrinkage and stress in wood caused by the big difference in moisture content evaporation
A method of applying preservatives which involves the immersing of the wood in a hot preservative for a short time and letting it dry before being used.
Hot and cold bath method
Pressure treatment
Dipping
Brushing
A method of applying preservatives that consists of placing wood in cylinders into which the preservative is pumped under pressure.
Hot and cold bath method
Dipping
Brushing
Pressure treatment
(a) used to forestall attacks by decay, fungi, harmful insects and marine borers.
(a) method of sawing wood which is more preferable when a beautiful pattern is required for a building specifications such as in wall panelling.
The central core of the log, it is composed of inactive cells and serves only as a mechanical support.
Cambium
Sapwood
Heartwood
Pith
The softer, younger outer portion of a tree. More permeable, less durable and usually lighter in color.
Sapwood
Dead bark
Heartwood
Pith
A longitudinal separation of the fibers which extends to the opposite face of a sawn timber.
Wane
Split
Checks
Shakes
A separation along the grain of a wood piece, usually between the annual rings, caused by stresses on a tree while standing or during falling.
Shakes
Wane
Pitch pocket
Split
Any deviation from a plane or true surface of a board or panel, usually caused by uneven drying during the seasoning process or by the change in moisture content.
Knots
Warp
Skip
Wane
