Farm Structures and Materials Test Questions and Answers Latest
Update
1. Advantages of Wood
ANSWER - cheap to produce, renewable
2. Disadvantages of wood
ANSWER - weather changes its size and shape, doesn't shrink or swell uniformly, never
dimensionally true, defects
3. In what direction is wood stronger?
ANSWER - Parallel to the grain
4. What is woods tensile strength? What is this similar to?
ANSWER - 700 psi. Similar to steel
5. What is the moisture content of most structural lumber?
ANSWER - 19% or less
6. Lumber
ANSWER - lengths of squared wood
7. Solid Lumber includes
ANSWER - boards, dimensional lumber, timbers
8. Thickness of boards
ANSWER - 2 inches or less
9. Thickness of dimensional lumber
ANSWER - 2-4 inches
10. Thickness of timbers
ANSWER - 5 inches or more
11. Glulam Boards
ANSWER - Beams of laminated woods
12. Three types of joints used to join laminated members end to end
ANSWER - butt joint, scarf joint, and finger joint
13. Where can't you use Butt Joints
ANSWER - Where tensile forces are to be transmitted along the length of the beam
14. Laminated Veneer Lumber
, ANSWER - Produced by peeling sheets of veneer from the outer portion of the log. Sheets are
laminated in parallel alignment
15. Which type of structural composite lumber is the strongest?
ANSWER - Parallel Strand Lumber
16. Parallel Strand Lumber
ANSWER - made from outermost veneers peeled from a log that are not uniform. Produce odd-
shaped strands that are coated in adhesive and cured under pressure.
17. Laminated Strand Lumber
ANSWER - Produced by taking long strands of wood and bonding them with resin.
18. What is laminated strand lumber used for?
ANSWER - Short-span beams and columns
19. Plywood
ANSWER - made up of several thin layers that are glued together
20. What is plywood used for?
ANSWER - Sheathing and concrete framework
21. Oriented Strand-board
ANSWER - uses long strand like wood particles and glued 3-5 layers. Strands are oriented with each
layer in the same direction, making it stronger.
22. What is oriented strand-board used for?
ANSWER - Sheathing and sub flooring
23. Particleboard
ANSWER - Made of wood particles bonded with synthetic resins under heat and pressure.
24. What is particle board used for?
ANSWER - Flooring in manufactured and mobile homes
25. Wafer board
ANSWER - Wafer like pieces of wood larger than those for particleboard
26. Composite Panels
ANSWER - Consist of a face and back panel
27. What is an example of a composite panel?
ANSWER - Plywood bonded to a central core material
28. Structural Insulated Panel
Update
1. Advantages of Wood
ANSWER - cheap to produce, renewable
2. Disadvantages of wood
ANSWER - weather changes its size and shape, doesn't shrink or swell uniformly, never
dimensionally true, defects
3. In what direction is wood stronger?
ANSWER - Parallel to the grain
4. What is woods tensile strength? What is this similar to?
ANSWER - 700 psi. Similar to steel
5. What is the moisture content of most structural lumber?
ANSWER - 19% or less
6. Lumber
ANSWER - lengths of squared wood
7. Solid Lumber includes
ANSWER - boards, dimensional lumber, timbers
8. Thickness of boards
ANSWER - 2 inches or less
9. Thickness of dimensional lumber
ANSWER - 2-4 inches
10. Thickness of timbers
ANSWER - 5 inches or more
11. Glulam Boards
ANSWER - Beams of laminated woods
12. Three types of joints used to join laminated members end to end
ANSWER - butt joint, scarf joint, and finger joint
13. Where can't you use Butt Joints
ANSWER - Where tensile forces are to be transmitted along the length of the beam
14. Laminated Veneer Lumber
, ANSWER - Produced by peeling sheets of veneer from the outer portion of the log. Sheets are
laminated in parallel alignment
15. Which type of structural composite lumber is the strongest?
ANSWER - Parallel Strand Lumber
16. Parallel Strand Lumber
ANSWER - made from outermost veneers peeled from a log that are not uniform. Produce odd-
shaped strands that are coated in adhesive and cured under pressure.
17. Laminated Strand Lumber
ANSWER - Produced by taking long strands of wood and bonding them with resin.
18. What is laminated strand lumber used for?
ANSWER - Short-span beams and columns
19. Plywood
ANSWER - made up of several thin layers that are glued together
20. What is plywood used for?
ANSWER - Sheathing and concrete framework
21. Oriented Strand-board
ANSWER - uses long strand like wood particles and glued 3-5 layers. Strands are oriented with each
layer in the same direction, making it stronger.
22. What is oriented strand-board used for?
ANSWER - Sheathing and sub flooring
23. Particleboard
ANSWER - Made of wood particles bonded with synthetic resins under heat and pressure.
24. What is particle board used for?
ANSWER - Flooring in manufactured and mobile homes
25. Wafer board
ANSWER - Wafer like pieces of wood larger than those for particleboard
26. Composite Panels
ANSWER - Consist of a face and back panel
27. What is an example of a composite panel?
ANSWER - Plywood bonded to a central core material
28. Structural Insulated Panel
