Wood

Question 1

What is the tough, fibrous cellular substance that makes up most of the stems and branches of trees beneath the bark?

Answer 1

wood

Question 2

It is the tough external covering of a woody stem, branch, or root.

Answer 2

bark

Question 3

What is the layer of tissue that carries food from the leaves to the growing parts of a tree?

Answer 3

phloem (aka inner bark)

Question 4

The thin layer of reproductive tissue between the phloem and xylem which produces new phloem on the outside and new xylem on the inside of stems, branches, and roots.

Answer 4

cambium

Question 5

It is the soft, central core of a tree.

Answer 5

pith

Question 6

It is the older, harder, inactive core of a tree. It surrounds the pith.

Answer 6

heartwood (aka duramen)

Question 7

It is the younger, softer, living portion of wood between the cambium and heartwood.

Answer 7

sapwood (aka alburnum)

Question 8

What is the inert carbohydrate that is the chief constituent of the cell walls of plants?

Answer 8

cellulose

Question 9

An organic substance that, with cellulose, forms the woody cell walls of plants and the cementing material between them.

Answer 9

lignin

Question 10

The woody tissue of a tree that provides support and conducts water and mineral nutrients upward from the roots.

Answer 10

xylem

Question 11

A concentric layer of wood produced during a single year’s growth of a temperate tree.

Answer 11

annual ring (aka growth ring)

Question 12

It is the softer, more porous portion of an annual ring that develops early in the growing season.

Answer 12

springwood

Question 13

The harder, darker, less porous portion of an annual ring that develops late in the growing season.

Answer 13

summerwood

Question 14

What is the wood from a conifer called?

Answer 14

softwood

Question 15

What is the wood from a broad-leaved flowering tree called?

Answer 15

hardwood

Question 16

Any of various predominantly evergreen, cone-bearing trees.

Answer 16

conifer

Question 17

It means having foliage that remains green and functional throughout the year or through more than one growing season.

Answer 17

evergreen

Question 18

The leaves and living branches of a tree.

Answer 18

crown

Question 19

Trees that shed leaves annually or at the end of a growing season.

Answer 19

deciduous

Question 20

The main stem of a tree apart from its branches and roots.

Answer 20

trunk

Question 21

A viscous, clear to translucent, organic substance exuded by certain pines.

Answer 21

resin

Question 22

Differentiate timber and lumber.

Answer 22

Timber is raw wood, while lumber is wood after it’s been processed and is ready for construction.

Question 23

It is wood that has been planed and sanded to create a smooth and uniform surface.

Answer 23

Dressed Lumber

Question 24

It is wood that has been cut from a log but not yet planed or surfaced.

Answer 24

Rough Lumber

Question 25

How much moisture does a well-seasoned piece of wood have?

Answer 25

10-12%

Question 26

Why is measuring the degree of moisture content necessary?

Answer 26

for proper retention of shape and size of component parts

Question 27

What are two types of seasoning?

Answer 27

Air/Natural Seasoning Kiln/Artificial Seasoning

Question 28

What are the two classifications of wood (in construction terms).

Answer 28

Natural Engineered

Question 29

This kind of wood is also called composite wood, man-made wood, or manufactured board.

Answer 29

Engineered Wood

Question 30

It refers to thin slices of wood that are glued onto core panels.

Answer 30

Veneer

Question 31

These are made by breaking down hardwood or softwood residuals into wood fibers, combining it with wax and a resin binder, and forming panels by applying high temperature and pressure.

Answer 31

Medium Density Fiber Board

Question 32

It manufactured from wood chips, sawmill shavings, or even sawdust, and a synthetic resin or other suitable binder, which is pressed and extruded.

Answer 32

Particle Board

Question 33

It is a sheet material manufactured from thin layers of wood veneers that are glued together, with adjacent layers having theyr wood grain rotated up to 90 degrees to one another.

Answer 33

Plywood

Question 34

It is a wood-based panel, made up of a core of softwood strips glued together.

Answer 34

Block Board

Question 35

This type of seasoning uses the direct action of wind, air, and sun and takes a few months to over a year.

Answer 35

Natural Seasoning

Question 36

It is the process of drying timber or removing moisture or sap in a freshly felled timber.

Answer 36

Seasoning

Question 37

It is the technique of manufacturing a material in multiple layers, so that the composite material achieves improved characteristics.

Answer 37

Lamination

Question 38

Most structural timber and many appearance products are currently sawn in what way?

Answer 38

Back Sawn

Question 39

# True or False? Naturally seasoned wood are more likely to warp and cup than artificially seasoned ones.

Answer 39

False | Artificially seasoned wood is more prone to warping, cupping, and other

Question 40

Under this type of seasoning, timber is placed in a chamber with some special heating arrangement.

Answer 40

KILN/Artificial Seasoning

Question 41

How long does artificial seasoning take?

Answer 41

3-12 days

Question 42

Also known as hardboard, this engineered wood material is made out of exploded wood fibers that have been highly compressed.

Answer 42

High Density Fiber Board