Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 600 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.🔺 Which strong shape does a roof truss use? (a) dome (b) arch (c) triangle (d) beam
2. 2.⚖️ A lever balances when … (a) the bar is short (b) both weights are equal (c) turning effects match (d) the fulcrum moves
3. 3.🪝 A pulley system lifts a 540 N load with an effort of 270 N. What is its mechanical advantage (MA)?
4. 4.📐 How many metres are in 1 kilometre? (a) 1000 (b) 100 (c) 10000 (d) 10
5. 5.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 2 N, a carpet 6 N, sandpaper 8 N, ice 1 N. Which surface gave the least friction? (a) ice (b) a carpet (c) a wooden plank (d) sandpaper
6. 6.⚖️ A lever bar balances. The load is 50 N at 40 cm from the fulcrum. The effort is 40 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
7. 7.📐 A beam is 370 cm long. How long is it in metres? =
8. 8.💪 A box weighs 220 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
9. 9.Which job is a screwdriver for? (a) tighten a nut (b) drive in a nail (c) check a shelf is level (d) turn a screw
10. 10.🔍 Which is the odd one out? (a) run while holding tools (b) cut towards your hand (c) carry scissors closed (d) leave tools on the floor
11. 11.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🦺 What protects your eyes when sawing or drilling? (a) a cap (b) nothing (c) safety goggles (d) sunglasses
13. 13.🤝 A team plans for 40 minutes, builds for 20 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
14. 14.Which job is sandpaper for? (a) cut a wooden plank (b) check a shelf is level (c) measure a long length (d) smooth a rough edge
15. 15.Which of these happens in the Create step? (a) make a prototype (b) think of wild ideas (c) dream up possible fixes (d) define the problem
16. 16.🌉 What holds up a long beam bridge in the middle? (a) piers (b) balloons (c) cables only (d) nothing
17. 17.💪 Two children push a box to the right, one with 90 N and the other with 60 N. What is the net (total) force on the box, in newtons?
18. 18.Which of these is a suspension bridge? (a) good for short gaps (b) the simplest bridge (c) stones squeezed together (d) tall towers hold cables
19. 19.🔍 Which is the odd one out? (a) chalk on a gym bar (b) skating on ice (c) a tyre with deep treads (d) a grippy rubber sole
20. 20.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
21. 21.Which job is a spirit level for? (a) check a shelf is level (b) measure a long length (c) smooth a rough edge (d) turn a screw
22. 22.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a constraint (b) a criterion
23. 23.Which of these is reduce (use less)? (a) switch off unused lights (b) pulp old paper (c) give old books away (d) melt cans into new cans
24. 24.🌉 Which bridge type: “the simplest bridge”? (a) beam bridge (b) suspension bridge (c) arch bridge
25. 25.🏋️ A smooth ramp is 3 m long and rises 1 m. What effort pushes a 300 N box up it, in newtons? (ideal ramp, no friction)
26. 26.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
27. 27.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) gravity (d) friction
28. 28.🔺 How do engineers stop a square frame from wobbling? (a) add a diagonal brace (b) make it bigger (c) paint it (d) take off a side
29. 29.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 3 (b) class 1 (c) class 2
30. 30.🔍 Which is the odd one out? (a) a tow rope on a car (b) a suspension cable (c) a tall bridge tower (d) a tent guy rope
31. 31.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
32. 32.True or false: “be under 30 cm tall” is a constraint (a limit). (a) False (b) True
33. 33.🤝 Why do engineers work in teams? (a) many skills and ideas (b) to work alone (c) to finish nothing (d) to argue more
34. 34.Which of these is a screw? (a) a chisel (b) a jar lid (c) a bottle opener (d) a water tap handle
35. 35.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) build it with straws (b) load it with coins (c) strengthen the weak part (d) choose and draw one
36. 36.⚖️ Which class of lever is a beam balance? (a) class 2 (b) class 1 (c) class 3
37. 37.🔍 Which is the odd one out? (a) the tip of a nail (b) a chisel (c) a crane hook block (d) a door stopper
38. 38.⚖️ Which class of lever is a pair of tweezers? (a) class 1 (b) class 3 (c) class 2
39. 39.True or false: to laugh at ideas is poor teamwork. (a) False (b) True
40. 40.⚙️ Which simple machine is a road up a hill? (a) lever (b) wheel and axle (c) inclined plane (d) pulley

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