Orthographic Projection: Civil Drawing is one of 9 topics in the Grade 10 Engineering Graphics and Design CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. What type of view is a floor plan?
A horizontal sectional view, as if a cutting plane sliced through the walls at approximately window-sill/door-handle height
A vertical external view of one wall face
A pictorial 3D view of the entire dwelling
A view showing only the roof structure
Answer: A horizontal sectional view, as if a cutting plane sliced through the walls at approximately window-sill/door-handle height — A floor plan is a horizontal sectional view, imagined as if a cutting plane sliced through all the walls at approximately window-sill or door-handle height, looking straight down at what remains.
Easy
2. How is a door conventionally shown on a floor plan?
As a break in the wall line with a quarter-circle arc indicating its swing path
As a solid, unbroken wall line with no symbol
As a small rectangle drawn entirely outside the wall
As a dashed hidden-detail line only
Answer: As a break in the wall line with a quarter-circle arc indicating its swing path — A door is conventionally shown as a break in the wall line with a quarter-circle arc indicating its swing path and open position.
Medium
3. Name the calculation representing the total distance around the outside boundary of a dwelling or room.
Answer: perimeter — The perimeter is the total distance around the outside boundary of the dwelling or a specific room, calculated from the dimensioned measurements shown on the plan.
