Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 426 · 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.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
2. 2.🤝 A team plans for 25 minutes, builds for 30 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
3. 3.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) True (b) False
4. 4.True or false: “a flat deck on piers” is a beam bridge. (a) True (b) False
5. 5.🏋️ In which unit is work measured? (a) metre (m) (b) watt hour (c) joule (J) (d) newton (N)
6. 6.🧪 A paper bridge was tested three times. It held 280 g, 240 g and 260 g. What is the mean (average) load it held, in grams?
7. 7.True or false: a computer engineer builds rockets. (a) False (b) True
8. 8.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
9. 9.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 11 N, ice 2 N, a glass sheet 4 N, a carpet 7 N. Which surface gave the least friction? (a) a carpet (b) a glass sheet (c) ice (d) sandpaper
10. 10.🧱 Which property matters most for a roof sheet? (a) waterproof (b) electrical conductor (c) transparent (d) flexible
11. 11.🤝 A teammate’s idea seems odd. What should you do first? (a) listen and ask why (b) walk away (c) ignore it (d) laugh at it
12. 12.Which need does a bridge meet? (a) keep food fresh longer (b) make water safe to drink (c) see very tiny things (d) cross a wide river
13. 13.🧪 Why repeat a test three times? (a) to get reliable results (b) the first is wrong (c) to use more paper (d) it looks busy
14. 14.🧱 Which material is best for a raincoat? (a) cardboard (b) plastic-coated cloth (c) cotton wool (d) paper
15. 15.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
16. 16.True or false: a shelf on two brackets uses triangles. (a) True (b) False
17. 17.🪢 Tension or compression: a stretched rubber band? (a) tension (b) compression
18. 18.🧪 Three prototype bridges were tested with the same method. Design A held 390 g, design B held 340 g and design C held 290 g. Which design was the strongest? (a) design B (b) design A (c) design C
19. 19.🛠️ People need to talk to someone far away. Which invention helps? (a) a tunnel (b) a fridge (c) a dam (d) a telephone
20. 20.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the fulcrum (b) on the rock (c) far from the fulcrum (d) near the fulcrum
21. 21.🔄 Which design-process step is it to list the materials? (a) Improve (b) Create (c) Plan (d) Ask
22. 22.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a criterion (b) a constraint
23. 23.⚖️ A seesaw balances. Kabir (300 N) sits 3 m from the pivot on one side; Meena (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
24. 24.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
26. 26.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
27. 27.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.📐 On a plan, 1 cm stands for 5 m. A real bridge is 15 m long. How long is it on the plan, in centimetres?
29. 29.♻️ Is ocean wave energy a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
30. 30.True or false: a telephone helps people cross a wide river. (a) False (b) True
31. 31.🔧 Which tool would you use to smooth a rough edge? (a) a spanner (b) sandpaper (c) pliers (d) a protractor
32. 32.🧱 Which property matters most for a skipping rope? (a) transparent (b) flexible (c) electrical conductor (d) waterproof
33. 33.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 74 cm tall. Is it within the constraint? (a) No (b) Yes
34. 34.True or false: to use the same load is good testing. (a) True (b) False
35. 35.Which of these happens in the Imagine step? (a) find the limits (b) define the problem (c) dream up possible fixes (d) check it against goals
36. 36.🤝 Is it good or poor teamwork to give kind feedback? (a) poor teamwork (b) good teamwork
37. 37.🔍 Which is the odd one out? (a) a table leg (b) a squeezed spring (c) a temple column (d) a tow rope on a car
38. 38.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) nothing (c) the load (d) the effort
39. 39.True or false: pulling up your socks is a pull. (a) False (b) True
40. 40.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?

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