Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 438 · 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 of these is a lever? (a) a crowbar (b) the tip of a nail (c) an axe blade (d) a round doorknob
2. 2.🧑‍🔧 Which kind of engineer designs a flyover? (a) biomedical (b) civil (c) computer (d) electrical
3. 3.True or false: a well winch handle is a wheel and axle. (a) False (b) True
4. 4.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) a stranger (b) an adult (c) the youngest child (d) any child alone
5. 5.🪝 More rope sections holding a load means … (a) more effort needed (b) no change (c) less effort needed (d) the load floats
6. 6.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) no, it repeats (d) only on Sundays
7. 7.True or false: to leave tools on the floor is not safe. (a) False (b) True
8. 8.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
9. 9.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a seesaw (c) a nutcracker (d) an axe blade
10. 10.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 3 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
11. 11.⚖️ A seesaw balances. Ravi (190 N) sits 2 m from the pivot on one side; Kabir (380 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
12. 12.🌉 Which bridge type: “a rope bridge in hills”? (a) beam bridge (b) suspension bridge (c) arch bridge
13. 13.True or false: to find the limits is the Improve step. (a) True (b) False
14. 14.♻️ Which energy source will never run out? (a) coal (b) petrol (c) sunlight (d) diesel
15. 15.True or false: natural gas is a non-renewable energy source. (a) True (b) False
16. 16.📋 Criteria are … (a) the tools you use (b) goals a design must meet (c) the team names (d) the limits on money
17. 17.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) chemical (c) mechanical (d) biomedical
18. 18.🛞 Is friction helpful or a problem here: tyres wearing down? (a) helpful (b) a problem
19. 19.🤝 In a design team, who keeps the team on track? (a) materials manager (b) team leader (c) builder (d) recorder
20. 20.🔺 Why can an arch carry heavy loads? (a) it is very light (b) it bends easily (c) it works in compression (d) it is hollow
21. 21.🧑‍🔧 Which kind of engineer designs a gearbox? (a) electrical (b) chemical (c) computer (d) mechanical
22. 22.⚖️ Which class of lever is a lemon squeezer? (a) class 3 (b) class 2 (c) class 1
23. 23.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
24. 24.⚖️ A lever bar balances. The load is 200 N at 40 cm from the fulcrum. The effort is 80 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
25. 25.🛠️ Is a mobile phone made by engineers or found in nature? (a) made by engineers (b) found in nature
26. 26.Which need does a dam meet? (a) go through a mountain (b) make water safe to drink (c) store water for summer (d) make power from sunlight
27. 27.🔍 Which is the odd one out? (a) a temple column (b) a crane lifting cable (c) a tent guy rope (d) a stretched rubber band
28. 28.🛞 Friction acts … (a) with the motion (b) against the motion (c) only on ice (d) only upwards
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.⚖️ A seesaw balances. Arjun (200 N) sits 3 m from the pivot on one side; Kabir (600 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
31. 31.🔄 Which design-process step is it to brainstorm many ideas? (a) Plan (b) Improve (c) Imagine (d) Create
32. 32.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.📐 How many centimetres are in 1 metre? (a) 1000 (b) 10 (c) 100 (d) 60
34. 34.📐 A beam is 380 cm long. How long is it in metres? =
35. 35.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) friction (c) gravity (d) magnetic force
36. 36.🔢 To follow the engineering design process, what comes right after “Test”? (a) Ask (b) Improve (c) Imagine (d) Create
37. 37.🪢 A concrete slab weighing 5400 N rests evenly on 3 identical pillars. What compression force does each pillar carry, in newtons?
38. 38.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a bridge pier (c) a tent guy rope (d) a stone in an arch
39. 39.🪝 A well winch has a handle (wheel) of radius 15 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?
40. 40.True or false: an aerospace engineer designs aeroplane wings. (a) False (b) True

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