It is a wood defect caused by insects and beetles. 

It is a warping along the face of a board across the width of the board. 

3. Are holes in the wood caused by insects and beetles.

4. It is the warping of lumber where the ends twist in opposite direction.

5. The presence of bark or absence of wood on corners of a piece of lumber.

A warping along the edge from one end to the other. 

It is the warping of lumber where the ends twist in opposite direction.

 A longitudinal separation of the fibers which extends to the opposite face of a piece of sawn timber.

It is caused by a dead branch that was not fully integrated into the tree before it was cut down.

A knot fixed by growth or position in the wood structure so that it firmly retains its place in the surrounding wood.

A darkening of the wood due to overheating by the machine knives 

A discoloration that penetrates the wood fiber. 

This property  is dependent upon rate of loading, species, moisture, contents, orientation, temperature, size, and location of natural characteristics 

This depends on grain orientation, moisture, species, temperature, and rate of loading. 

It is influenced by the anatomy of the wood cells. 

Are wood properties  that are dielectric constant and the dielectric power factor alternating current. 

This wood property is determined by the amount of cell wall substance and the volume of voids by the cell cavities (lumens) of the fibers. 

It is the ratio of the mass of water contained in the mass of the same sample of dry wood. 

It occurs when wood loses moisture below the fiber saturation point.

A marketing practice of creating name, symbol or designs that identifies and differentiate a product from the other products. 

A raised floor is used to step on by worker while working.

A part of scaffold that holds the platforms.

It is used to prevent  movements of the scaffold. 

It is  used to support the structure. 

It is fixed to support outriggers. 

It is used to prevent lateral movements of the scaffold. 

It is the best lumber suited to make as scaffolding. 

Below are the material/tool/equipment used in assembling wooden scaffold, EXCEPT

Below are the list of  material/tool/equipment used in disassembling wooden scaffold, EXCEPT?

It is used to pull out fasteners.

Power lines near scaffolds are _______________. 

Never use any equipment which is______________ or deteriorated in any way. 

Report any unsafe conditions to_____________. 

Always place scaffolds on a _______________, stable surface. 

Maintain all equipment in ______________ condition. 

A hand tool used to turn nuts and bolts, and sometimes called adjustable wrench.

It is accurately used to test the squareness of smaller objects. 

A driving tool used to drive and pull out nails.

Used for wrecking and pulling out large nails.

40. These are the hand coverings used for personal protection.

A head covering used for personal protection.

These are the hand coverings used for personal protection.

Feet protection used for personal safety; usually a type of shoe with steel toe.

 Refers to wide leather strap with hook used to protect an individual from an accidental fall.

It is accurately used to test the squareness of bigger objects. 

Check the __________________, plumbness, and levelness of the scaffolds. 

Nail properly all diagonal braces to the upright support to prevent ________________ movement. 

Lay down the upright supports and remove the _______________ from the upright support. 

Perform ___________________ after the operation.  

 Pull out all fasteners using ______________________.