Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 914 · 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.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 8 m, how many metres of rope must you pull?
2. 2.True or false: a water tank needs a transparent material. (a) True (b) False
3. 3.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) only if it is red (c) yes, always (d) no, it breaks a limit
4. 4.🔺 Which strong shape does a fort gateway use? (a) beam (b) arch (c) triangle (d) dome
5. 5.🛞 More or less friction: a tyre with deep treads? (a) less friction (b) more friction
6. 6.🤝 A team plans for 20 minutes, builds for 45 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
7. 7.🌉 A beam bridge 550 m long is split by piers into 11 equal spans. How long is each span, in metres?
8. 8.⚖️ A seesaw balances. Ravi (600 N) sits 1 m from the pivot on one side; Arjun (150 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
9. 9.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) biomedical (c) mechanical (d) chemical
10. 10.🤝 Why do engineers work in teams? (a) to finish nothing (b) many skills and ideas (c) to argue more (d) to work alone
11. 11.📐 On a plan, 1 cm stands for 20 m. A real bridge is 180 m long. How long is it on the plan, in centimetres?
12. 12.🛠️ Is a bridge made by engineers or found in nature? (a) made by engineers (b) found in nature
13. 13.Which of these uses an arch? (a) a round palace roof (b) a curved stone doorway (c) a truss bridge side (d) a slab over a canal
14. 14.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Create (b) Test (c) Plan (d) Imagine
15. 15.🌉 In a stone arch bridge, the stones are in … (a) tension (b) friction (c) compression (d) no force
16. 16.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
17. 17.🔺 Which strong shape does a roof truss use? (a) dome (b) arch (c) triangle (d) beam
18. 18.🔍 Which is the odd one out? (a) copper (b) brass (c) aluminium (d) dry wood
19. 19.True or false: to test it only once is poor testing. (a) True (b) False
20. 20.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
21. 21.🏋️ A force of 460 N did 460 J of work. How many metres did the object move?
22. 22.🧱 Which property matters most for a spectacle lens? (a) heat insulator (b) electrical conductor (c) waterproof (d) transparent
23. 23.📋 Criterion: the model bridge must hold at least 1000 g. In the test it held 900 g. Does it meet the criterion? (a) Yes (b) No
24. 24.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a jar lid (c) a nutcracker (d) a bottle opener
25. 25.True or false: opening a drawer is a push. (a) False (b) True
26. 26.⚖️ A lever bar balances. The load is 200 N at ? cm from the fulcrum. The effort is 60 N at 100 cm from the fulcrum on the other side. What is the missing distance in centimetres?
27. 27.🛞 Is friction helpful or a problem here: a door hinge squeaking? (a) helpful (b) a problem
28. 28.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) use a smaller force (c) switch off gravity (d) make new energy
29. 29.True or false: to define the problem is the Ask step. (a) False (b) True
30. 30.🔧 Which tool would you use to measure a long length? (a) a hand drill (b) pliers (c) a tape measure (d) a hammer
31. 31.🤝 In a design team, who collects the supplies? (a) recorder (b) builder (c) tester (d) materials manager
32. 32.Which of these needs an electrical conductor? (a) a car windscreen (b) a raincoat (c) the core of a wire (d) an oven glove
33. 33.🏋️ A 9 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
34. 34.⚖️ A seesaw balances. Asha (260 N) sits 2 m from the pivot on one side; Kabir (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
35. 35.True or false: to carry scissors closed is safe. (a) True (b) False
36. 36.🧪 A paper bridge was tested three times. It held 180 g, 60 g and 210 g. What is the mean (average) load it held, in grams?
37. 37.Which of these uses a dome? (a) an electric pylon (b) a shelf on two brackets (c) a bicycle frame (d) a round palace roof
38. 38.🔢 To build and test a straw bridge, what comes right after “read the challenge rules”? (a) strengthen the weak part (b) load it with coins (c) build it with straws (d) sketch three ideas
39. 39.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) far from the fulcrum (b) near the fulcrum (c) on the fulcrum (d) on the rock
40. 40.True or false: “a flat deck on piers” is a beam bridge. (a) False (b) True

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