Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 135 · 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 job is a tape measure for? (a) make a hole in wood (b) grip and bend wire (c) turn a screw (d) measure a long length
2. 2.🛠️ People need to carry many people far. Which invention helps? (a) a train (b) a lift (c) a solar panel (d) a dam
3. 3.🔍 Which is the odd one out? (a) a river (b) a volcano (c) a mobile phone (d) a coral reef
4. 4.🌉 In a suspension bridge, the main cables are in … (a) tension (b) compression (c) no force (d) friction
5. 5.🛞 More or less friction: chalk on a gym bar? (a) more friction (b) less friction
6. 6.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
7. 7.True or false: a mobile phone is found in nature. (a) False (b) True
8. 8.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
9. 9.🤝 In a design team, who runs the tests? (a) materials manager (b) team leader (c) recorder (d) tester
10. 10.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) raising heavy tanks high (d) keeping a simple shape
11. 11.🛞 More or less friction: a tyre with deep treads? (a) less friction (b) more friction
12. 12.🪢 A stage stands on 8 identical legs and each leg is squeezed with 175 N. What is the total load on the stage, in newtons?
13. 13.🔢 To follow the engineering design process, what comes right after “Create”? (a) Improve (b) Test (c) Imagine (d) Plan
14. 14.🔺 Which strong shape does a bicycle frame use? (a) beam (b) arch (c) triangle (d) dome
15. 15.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 40 cm and the load at 80 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
16. 16.Which of these is reduce (use less)? (a) carry a cloth bag (b) plant in old tyres (c) refill a water bottle (d) use a jar as a pen stand
17. 17.💪 In which unit do we measure force? (a) metre (m) (b) second (s) (c) litre (L) (d) newton (N)
18. 18.🔺 One side of a straw bridge is a row of 12 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
19. 19.🌉 Which bridge type: “the longest spans of all”? (a) beam bridge (b) suspension bridge (c) arch bridge
20. 20.🔍 Which is the odd one out? (a) measure the same way (b) guess, do not measure (c) change only one thing (d) use the same load
21. 21.⚙️ Which simple machine is a bottle opener? (a) screw (b) pulley (c) wedge (d) lever
22. 22.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 350 g. Does it meet the criterion? (a) No (b) Yes
23. 23.🔍 Which is the odd one out? (a) use only paper and tape (b) spend at most ₹100 (c) carry 10 coins (d) use at most 20 straws
24. 24.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) any child alone (b) an adult (c) a stranger (d) the youngest child
25. 25.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) ignore it (c) listen and ask why (d) walk away
26. 26.Which of these is a screw? (a) a wood screw (b) a bottle opener (c) a nutcracker (d) a crowbar
27. 27.⚖️ A lever bar balances. The load is ? N at 40 cm from the fulcrum. The effort is 360 N at 50 cm from the fulcrum on the other side. What is the missing force in newtons?
28. 28.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
29. 29.⚖️ A seesaw balances. Asha (? N) sits 2 m from the pivot on one side; Arjun (200 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
30. 30.Which of these happens in the Ask step? (a) think of wild ideas (b) list the materials (c) find the limits (d) brainstorm many ideas
31. 31.🔺 One side of a straw bridge is a row of 15 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
32. 32.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
33. 33.True or false: ocean wave energy is a renewable energy source. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) use a new load each time (d) change lots at once
35. 35.🪝 A load of 200 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
36. 36.🤝 In a design team, who collects the supplies? (a) builder (b) materials manager (c) tester (d) team leader
37. 37.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 270 g. How many more grams did it hold?
38. 38.♻️ Reduce, reuse or recycle: plant in old tyres? (a) recycle (b) reuse (c) reduce
39. 39.🪝 A bucket weighing 390 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
40. 40.🔍 Which is the odd one out? (a) a pillar under a roof (b) a tug of war rope (c) a crane lifting cable (d) a hanging lamp chain

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