Question 1: Describe in your own words what an isometric drawing is and how it differs from a standard 2D drawing.

Answer: An isometric drawing is a method of representing three-dimensional objects on a flat surface, where the three axes are equally inclined at 120 degrees. It shows the object's width, depth, and height without distortion, unlike standard 2D drawings which lack depth.

Question 2: Sketch a simple box in isometric projection. Ensure all visible edges are accurately drawn in proportion, with the three axes at 120 degrees.

Answer: A correct sketch would show a cube with three visible faces, each aligned along axes at 120 degrees. The edges should be parallel in the isometric grid, with the front face as a square, and the top and side faces showing depth.

Question 3: Draw an isometric view of a rectangular prism that measures 3 units wide, 2 units deep, and 4 units high.

Answer: A correct sketch would depict a rectangular prism with the specified dimensions. The front face would be a rectangle, with the depth shown along the side edges at 120 degrees, and height extending vertically. All edges should be parallel to the isometric axes.

Question 4: Sketch a simple isometric drawing of a pyramid with a square base. Label the base corners and the apex.

Answer: The drawing should show a square base in isometric view, with four triangular sides meeting at a single apex point above the base. All lines should follow isometric angles, and the base corners should be clearly marked.

Question 5: Identify three key features of an isometric grid and explain why it is useful in technical drawing.

Answer: An isometric grid consists of evenly spaced lines at 30-degree angles, forming a series of equilateral triangles. It helps in accurately drawing 3D objects, maintaining proportions, and visualising complex shapes more easily.

Question 6: Sketch a simple house using isometric projection. Include walls, a roof, and a door. Use the space provided.

Answer: A correct sketch would include a rectangular base representing the house, with vertical walls, a pitched roof, and a door on the front face. All lines should follow isometric angles, with proper proportions and perspective.

Question 7: Draw a cylindrical object (like a can or a pipe) in isometric view. Show the circular top and bottom clearly.

Answer: The drawing should depict an oval at the top and bottom to represent the circles in isometric projection, with the sides connecting them as vertical lines. The ovals should be properly proportioned and aligned.

Question 8: Sketch a simple keychain in isometric view. Include a rectangular body and a small hanging loop.

Answer: A correct sketch would show a rectangular block for the keychain's body, with a small loop or ring attached at the top. The drawing should follow isometric angles, with the edges parallel to the axes.

Question 9: Design and sketch a small piece of furniture (like a stool or a shelf) in isometric projection. Use the space provided.

Answer: The sketch should show the main structure with a rectangular top or surface, supported by legs or sides. All lines should be in isometric perspective, with proportions consistent throughout.

Question 10: Explain why isometric drawings are useful in product design and engineering.

Answer: Isometric drawings allow designers and engineers to visualize objects in 3D, see all sides clearly, and communicate ideas accurately. They help in understanding the spatial relationships and dimensions without distortion.

Question 11: Sketch a simple key in isometric view. Include a handle and a key blade, with labels for each part.

Answer: The sketch should show the handle as a rectangular or oval shape, with the key blade extending downward, detailed with teeth. Labels should point to the handle and the blade, following isometric guidelines.