TLE_Carpentry 10_2nd PT
Quiz by CID Marikina
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- Q1
It is a wood defect caused by insects and beetles.
crack
cupping
twist
wood bore
30s - Q2
It is a warping along the face of a board across the width of the board.
crack
cupping
twist
wood bores
30s - Q3
3. Are holes in the wood caused by insects and beetles.
cupping
split
twist
wood bores
30s - Q4
4. It is the warping of lumber where the ends twist in opposite direction.
bow
crook
pitch
wane
30s - Q5
5. The presence of bark or absence of wood on corners of a piece of lumber.
bow
crook
pitch
wane
30s - Q6
A warping along the edge from one end to the other.
bow
crook
pitch
wane
30s - Q7
It is the warping of lumber where the ends twist in opposite direction.
bow
crook
pitch
wane
30s - Q8
A longitudinal separation of the fibers which extends to the opposite face of a piece of sawn timber.
cupping
split
twist
wood bores
30s - Q9
It is caused by a dead branch that was not fully integrated into the tree before it was cut down.
Blue stain
Loose knot
Machine burn
Tight knot
30s - Q10
A knot fixed by growth or position in the wood structure so that it firmly retains its place in the surrounding wood.
Blue stain
Loose knot
Machine burn
Tight knot
30s - Q11
A darkening of the wood due to overheating by the machine knives
Blue stain
Loose knot
Machine burn
Tight knot
30s - Q12
A discoloration that penetrates the wood fiber.
Blue stain
Loose knot
Machine burn
Tight knot
30s - Q13
This property is dependent upon rate of loading, species, moisture, contents, orientation, temperature, size, and location of natural characteristics
Elasticity
Permeability
Strength
Vibration
30s - Q14
This depends on grain orientation, moisture, species, temperature, and rate of loading.
Elasticity
Permeability
Strength
Vibration
30s - Q15
It is influenced by the anatomy of the wood cells.
Elasticity
Permeability
Strength
Vibration
30s