Wood

Question 1

structural tissue found in the stems and roots of trees and other
woody plants

Answer 1

Wood

Question 2

Trees or wooded land considered as a source of wood

Answer 2

Timber

Question 3

typically refers collectively to wood that’s been processed for use
as a building materia

Answer 3

Lumber

Question 4

Physical properties of wood

Answer 4

-
APPEARANCE
-
MOISTURE CONTENT
-
SHRINKAGE
-
SPECIFIC GRAVITY
-
THERMAL CONDUCTIVITY
-
ELECTRICAL CONDUCTIVITY
-
COMBUSTIBILITY

Question 5

Mechanical properties of wood

Answer 5

-
ORTHOTROPICITY.
-
ELASTICITY
-
STRENGTH
a. HARDNESS
b. STIFFNESS
c. TOUGHNESS
d. RESISTANCE TO WARPING
e. NAIL HOLDING RESISTANCE
f.
WORKABILITY
g. NATURAL DECAY RESISTANCE
h. PAINT HOLDING ABILITY

Question 6

have constantly regenerating
supply over the course of the year

Answer 6

Sustainable sources

Question 7

it occur one time. These
sources can provide a spike in the overall wood availability, but are
short-lived

Answer 7

Non sustainable sources

Question 8

●
They are generally broad-leaved deciduous trees.
●
They are porous and angiosperm.
●
Stronger, denser, and homogeneous
●
Resist fire better than softwood.
● Nearly impervious to water

Answer 8

Hardwood (narra, maple, oak, mahogany, acacia,
yakal, rosewood, teak.
)

Question 9

●
They are nonporous and gymnosperm.
●
Have lower density.
● Not water resistance

Answer 9

Softwood (pine, ash, cedar, birch, hemlock, fir, spruce,
redwood)

Question 10

Uses of wood

Answer 10

Foundation
Floors
Load bearing Exterior walls
Roof
Wood decks
Struc support
Insulation
Cabinetry and millwork
Landscaping
Outdoor struc

Question 11

Advantages of wood

Answer 11

1. Renewable Resource
2. Lightweight and Easy to Work With
3. Insulation Properties
4. Aesthetic Appeal
5. Strength and Durability
6. Testing Capabilities
7. Cost-Effective
8. Sustainability Certification

Question 12

Disadvantage

Answer 12

Shrinkage and swelling
Deterioration (biotic and abiotic)

Question 13

Wood presevation

Answer 13

Oil borne preservatives
Water borne preservatives

Question 14

App of wood finishes

Answer 14

Water repellent preservatives
Semi transparent penetrating stains
Waterborne semi transparent stains
Solid color stains paint
Paint
Refinishing
Back priming
Sealers and drying oils
Non drying oils
Paraffin wax

Question 15

The wood is placed into an airtight steel cylinder and
immersed in a preservative

Answer 15

Pressure treatment

Question 16

include superficial applications
such as brushing, spraying, pouring and dipping, cold
soaking, steeping, hot and cold bath (thermal process);
diffusion, vacuum process, and preservative pads or
bandages

Answer 16

Non pressure treatment