Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 559 · 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.📐 On a plan, 1 cm stands for 10 m. A real bridge is 150 m long. How long is it on the plan, in centimetres?
2. 2.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 3 (c) class 1
3. 3.🔍 Which is the odd one out? (a) a mobile phone (b) a water filter (c) a satellite (d) a volcano
4. 4.🌉 Which bridge type: “the longest spans of all”? (a) arch bridge (b) suspension bridge (c) beam bridge
5. 5.Which of these is found in nature? (a) a waterfall (b) a railway track (c) a lift (d) a dam
6. 6.🏋️ A force of 450 N did 4500 J of work. How many metres did the object move?
7. 7.🧪 A paper bridge was tested three times. It held 340 g, 270 g and 230 g. What is the mean (average) load it held, in grams?
8. 8.🏋️ A 19 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
9. 9.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 3 N, a carpet 4 N, sandpaper 5 N, ice 1 N. How many newtons more were needed on sandpaper than on ice?
10. 10.🧱 Which material is best for a window pane? (a) wood (b) brick (c) steel (d) glass
11. 11.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) on the pivot (c) closer to the pivot (d) anywhere
12. 12.True or false: a civil engineer designs aeroplane wings. (a) True (b) False
13. 13.True or false: “carry 10 coins” is a constraint (a limit). (a) False (b) True
14. 14.🤝 How do engineers share a design with others? (a) secret notes (b) clear labelled sketches (c) only talking fast (d) no drawings at all
15. 15.True or false: plucking a mango is a pull. (a) False (b) True
16. 16.🔄 What is the FIRST step of the engineering design process? (a) Create (b) Ask (c) Test (d) Improve
17. 17.Which of these uses a dome? (a) a shelf on two brackets (b) a roof truss (c) a round palace roof (d) a bicycle frame
18. 18.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) strengthen the weak part (b) build it with straws (c) load it with coins (d) read the challenge rules
19. 19.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 44 cm tall. Is it within the constraint? (a) Yes (b) No
20. 20.What does the team leader do? (a) tracks what is used up (b) shares out the jobs (c) checks the goals are met (d) writes down results
21. 21.⚖️ A seesaw balances. Meena (260 N) sits ? m from the pivot on one side; Zoya (130 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
22. 22.Which job is sandpaper for? (a) check a shelf is level (b) drive in a nail (c) smooth a rough edge (d) cut a wooden plank
23. 23.🪢 A concrete slab weighing 24000 N rests evenly on 8 identical pillars. What compression force does each pillar carry, in newtons?
24. 24.True or false: a car seat belt needs a waterproof material. (a) True (b) False
25. 25.🪢 Compression is a force that … (a) makes light (b) cools things (c) pushes or squeezes (d) pulls or stretches
26. 26.🧑‍🔧 Which kind of engineer designs aeroplane wings? (a) chemical (b) aerospace (c) mechanical (d) biomedical
27. 27.💪 Two children push a box to the right, one with 5 N and the other with 85 N. What is the net (total) force on the box, in newtons?
28. 28.🌉 A beam bridge is 270 m long. Piers split it into equal spans of 45 m. How many spans are there?
29. 29.🧱 Which property matters most for a raincoat? (a) electrical conductor (b) waterproof (c) transparent (d) flexible
30. 30.True or false: wind is a renewable energy source. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) a brick at a wall base (b) a pillar under a roof (c) a table leg (d) a tent guy rope
32. 32.🤝 A team plans for 15 minutes, builds for 50 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
33. 33.🔍 Which is the odd one out? (a) a squeezed spring (b) a suspension cable (c) a crane lifting cable (d) a swing chain
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 100 g, design B held 150 g and design C held 200 g. Which design was the weakest? (a) design B (b) design C (c) design A
35. 35.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 80 g. What is the mean (average) load it held, in grams?
36. 36.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
37. 37.True or false: a fixed pulley stays in one place. (a) True (b) False
38. 38.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
39. 39.True or false: to listen to every idea is poor teamwork. (a) True (b) False
40. 40.True or false: an aerospace engineer designs aeroplane wings. (a) True (b) False

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