Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 204 · 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 is the odd one out? (a) use a cracked tool (b) carry scissors closed (c) cut away from your body (d) wear safety goggles
2. 2.True or false: a movable pulley needs effort = load. (a) False (b) True
3. 3.📐 On a plan, 1 cm stands for 20 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
4. 4.Which need does a water filter meet? (a) reach a top floor fast (b) cross a wide river (c) make water safe to drink (d) store water for summer
5. 5.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) choose and draw one (c) sketch three ideas (d) read the challenge rules
6. 6.🧪 Why repeat a test three times? (a) the first is wrong (b) it looks busy (c) to use more paper (d) to get reliable results
7. 7.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to make them pretty (c) to save ink only (d) big things fit on paper
8. 8.True or false: a satellite is made by engineers. (a) True (b) False
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 330 g, design B held 280 g and design C held 380 g. Which design was the strongest? (a) design C (b) design A (c) design B
10. 10.🪢 Compression is a force that … (a) pulls or stretches (b) pushes or squeezes (c) cools things (d) makes light
11. 11.True or false: skating on ice gives less friction. (a) False (b) True
12. 12.⚖️ A seesaw balances. Zoya (190 N) sits 4 m from the pivot on one side; Ravi (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
13. 13.⚖️ Which class of lever is your forearm? (a) class 3 (b) class 1 (c) class 2
14. 14.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
15. 15.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 110 g and design C held 210 g. Which design was the strongest? (a) design B (b) design A (c) design C
16. 16.True or false: to ask who will use it is the Plan step. (a) False (b) True
17. 17.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 200 g. Does it meet the criterion? (a) Yes (b) No
18. 18.📐 On a plan, 1 cm stands for 5 m. A wall is 11 cm long on the plan. How long is the real wall, in metres?
19. 19.🔄 Which design-process step is it to find the limits? (a) Ask (b) Imagine (c) Improve (d) Plan
20. 20.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) False (b) True
21. 21.🪢 Which material is good in tension but useless in compression? (a) a rope (b) a concrete block (c) a stone (d) a brick
22. 22.True or false: a telephone helps people talk to someone far away. (a) False (b) True
23. 23.True or false: a swing chain is in compression (pushed). (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a table leg (b) a swing chain (c) a brick at a wall base (d) a temple column
25. 25.⚖️ Which class of lever is a lemon squeezer? (a) class 2 (b) class 3 (c) class 1
26. 26.🌉 Which bridge type can cross the widest gap in one span? (a) arch bridge (b) log bridge (c) beam bridge (d) suspension bridge
27. 27.🔧 Which tool would you use to grip and bend wire? (a) pliers (b) a spanner (c) a spirit level (d) a screwdriver
28. 28.♻️ A school bench is made from 500 recycled plastic bottles. How many benches can be made from 4000 bottles?
29. 29.🦺 In the workshop, is it safe to play near a moving drill? (a) not safe (b) safe
30. 30.True or false: to try it out is the Ask step. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a mountain (b) a river (c) a bicycle (d) a seashell
32. 32.💪 Is opening a drawer a push or a pull? (a) a push (b) a pull
33. 33.🔧 Which tool would you use to make a hole in wood? (a) a hand drill (b) a saw (c) pliers (d) a screwdriver
34. 34.True or false: a biomedical engineer designs artificial limbs. (a) True (b) False
35. 35.🏋️ A machine lifts a load of 640 N when you push with 160 N. What is its mechanical advantage (MA)?
36. 36.🤝 In a design team, who tracks what is used up? (a) builder (b) materials manager (c) recorder (d) tester
37. 37.True or false: pulling a cart is a pull. (a) False (b) True
38. 38.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
40. 40.🪝 What does a single fixed pulley change? (a) the direction of pull (b) the colour of rope (c) the size of the load (d) gravity

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