Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 787 · 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.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 10 N, ice 2 N, a wooden plank 4 N, a carpet 6 N. Which surface gave the most friction? (a) a wooden plank (b) sandpaper (c) ice (d) a carpet
2. 2.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
3. 3.🤝 In a design team, who checks the goals are met? (a) team leader (b) builder (c) tester (d) recorder
4. 4.♻️ A sustainable design … (a) protects the future (b) uses the most plastic (c) wastes water (d) lasts one day
5. 5.🪝 A pulley system lifts a 60 N load with an effort of 20 N. What is its mechanical advantage (MA)?
6. 6.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “sketch three ideas”? (a) read the challenge rules (b) sketch three ideas
7. 7.True or false: a mechanical engineer designs artificial limbs. (a) True (b) False
8. 8.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load × effort (c) load ÷ effort (d) load + effort
9. 9.🔢 To follow the engineering design process, which is the LAST step? (a) Test (b) Plan (c) Ask (d) Improve
10. 10.💪 A box weighs 480 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
11. 11.What does the builder do? (a) keeps the team on track (b) runs the tests (c) tracks what is used up (d) cuts and joins parts
12. 12.⚖️ A seesaw balances. Meena (300 N) sits ? m from the pivot on one side; Ravi (300 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
13. 13.🔧 Which tool would you use to measure a long length? (a) a hand drill (b) a tape measure (c) pliers (d) a saw
14. 14.True or false: “finish in 40 minutes” is a criterion (a goal). (a) True (b) False
15. 15.Which of these is made by engineers? (a) a ceiling fan (b) a banyan tree (c) a volcano (d) a rainbow
16. 16.⚙️ A wedge is … (a) a bar on a pivot (b) two ramps back to back (c) a wheel on a rod (d) a rope on a wheel
17. 17.🔍 Which is the odd one out? (a) sand on a slippery path (b) a box pushed on carpet (c) a tyre with deep treads (d) powder on a carrom board
18. 18.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) strengthen the weak part (b) choose and draw one (c) load it with coins (d) build it with straws
19. 19.📐 A beam is 460 cm long. How long is it in metres? =
20. 20.📐 A beam is 410 cm long. How long is it in metres? =
21. 21.🔢 To follow the engineering design process, which is the FIRST step? (a) Ask (b) Test (c) Improve (d) Plan
22. 22.True or false: a seesaw is a wedge. (a) True (b) False
23. 23.🔧 Which tool would you use to make a hole in wood? (a) a protractor (b) a spanner (c) a spirit level (d) a hand drill
24. 24.Which of these uses an arch? (a) a crane arm (b) an igloo (c) a lintel over a door (d) an old stone bridge
25. 25.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
26. 26.Which of these happens in the Improve step? (a) define the problem (b) dream up possible fixes (c) redesign after testing (d) find the limits
27. 27.🔢 To follow the engineering design process, which comes first: “Improve” or “Create”? (a) Improve (b) Create
28. 28.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 1000 (c) 10 (d) 100
29. 29.🔍 Which is the odd one out? (a) a dam (b) a ceiling fan (c) a banyan tree (d) a bicycle
30. 30.True or false: a coral reef is made by engineers. (a) True (b) False
31. 31.Which of these happens in the Improve step? (a) check it against goals (b) make it better, retest (c) pick the build order (d) brainstorm many ideas
32. 32.📐 On a plan, 1 cm stands for 5 m. A wall is 15 cm long on the plan. How long is the real wall, in metres?
33. 33.🔍 Which is the odd one out? (a) leave tools on the floor (b) wear safety goggles (c) cut towards your hand (d) run while holding tools
34. 34.What does the materials manager do? (a) keeps the design notes (b) puts the model together (c) collects the supplies (d) keeps the team on track
35. 35.True or false: “a flat deck on piers” is a suspension bridge. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) hold up 500 g (b) carry 10 coins (c) keep ice for 1 hour (d) use only paper and tape
37. 37.🤝 Is it good or poor teamwork to agree before changing? (a) good teamwork (b) poor teamwork
38. 38.True or false: a planetarium roof uses an arch. (a) True (b) False
39. 39.🧪 A paper bridge was tested three times. It held 180 g, 70 g and 260 g. What is the mean (average) load it held, in grams?
40. 40.Which of these is recycle (make new things)? (a) turn plastic into tiles (b) carry a cloth bag (c) reuse gift paper (d) fix a dripping tap

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