Question 1: Describe three common methods used to join pieces of wood together. Include the advantages of each method.

Answer: Nails: Easy to use, quick, suitable for light structures. Screws: Stronger than nails, can be removed, suitable for furniture. Dowels: Provide strong, hidden joints, good for furniture and frames.

Question 2: Explain the difference between mechanical and adhesive joining methods. Give one example of each.

Answer: Mechanical joining uses physical fasteners like screws or nails. Adhesive joining uses glue or cement to bond materials. Example of mechanical: screw; example of adhesive: wood glue.

Question 3: Imagine you are designing a small wooden box that needs to be sturdy and durable. Which joining method would you choose and why?

Answer: I would choose dovetail joints because they are strong, durable, and suitable for boxes, providing a secure fit and aesthetic appeal.

Question 4: Sketch a simple plan for a joint that could connect two pieces of metal at a right angle. Label the main parts of the joint.

Answer: A correct sketch would show two metal pieces joined perpendicularly, with a common method being a corner weld or a bolted joint. Labels should include 'metal piece 1', 'metal piece 2', 'weld/bolt', and 'joint area'.

Question 5: Draw a cross-sectional view of a typical biscuit joint used in woodworking. Indicate the position of the biscuit within the joint.

Answer: The sketch should show two pieces of wood with a slot in each that align when joined. The biscuit, a small oval or rectangular piece, fits into the slots, holding the pieces together.

Question 6: List two safety precautions that should be taken when using adhesives or glues in a workshop.

Answer: Work in a well-ventilated area to avoid inhaling fumes. Wear protective gloves to prevent skin contact.

Question 7: What is the purpose of using clamps during the gluing process?

Answer: Clamps hold the materials tightly together, ensuring a strong bond as the adhesive cures and preventing movement.

Question 8: Design a step-by-step process to join two pieces of plastic using a hot glue gun. Include safety tips.

Answer: First, ensure the work area is clear and wear safety gloves. Heat the glue gun until the glue is melted. Apply a small amount of glue to one edge. Press the pieces together firmly and hold until the glue sets. Allow to cool before handling. Always unplug the glue gun after use.

Question 9: Explain why some joints require reinforcement, such as additional fasteners or adhesives, even after being initially joined.

Answer: Reinforcement is needed to increase strength, stability, and durability of the joint, especially if the structure will bear weight or stress.

Question 10: Identify and describe a joint suitable for creating a strong frame structure from metal tubing.

Answer: A common joint is a welded joint, where metal parts are fused together using heat. It provides a strong, permanent connection suitable for load-bearing structures.