Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 663 · 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 uses a dome? (a) an igloo (b) a roof truss (c) a slab over a canal (d) a curved stone doorway
2. 2.📐 On a plan, 1 cm stands for 20 m. A wall is 19 cm long on the plan. How long is the real wall, in metres?
3. 3.🦺 How should you carry scissors? (a) points up, open (b) by the blades (c) points down, closed (d) while running
4. 4.🧪 The first prototype held 100 g. After the team improved it, the new prototype held 130 g. How many more grams did it hold?
5. 5.📋 Your team’s budget is ₹141. You must buy one roll of tape for ₹10. Straws cost ₹5 each. What is the greatest number of straws you can buy?
6. 6.Which of these is found in nature? (a) a satellite (b) a mobile phone (c) a seashell (d) a bicycle
7. 7.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “choose and draw one”? (a) choose and draw one (b) read the challenge rules
8. 8.💪 A bag has a mass of 50 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
9. 9.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
10. 10.⚙️ Which simple machine is a well winch handle? (a) wedge (b) pulley (c) inclined plane (d) wheel and axle
11. 11.True or false: a waterfall is made by engineers. (a) True (b) False
12. 12.🧑‍🔧 Which kind of engineer designs factory machines? (a) electrical (b) aerospace (c) biomedical (d) mechanical
13. 13.🏋️ Pushing a crate 4 m took 1400 J of work. What force was used, in newtons?
14. 14.🛞 Is friction helpful or a problem here: shoe soles wearing out? (a) helpful (b) a problem
15. 15.⚖️ A seesaw balances. Kabir (440 N) sits ? m from the pivot on one side; Asha (440 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
16. 16.🏋️ Can a simple machine reduce the work done? (a) only on Mondays (b) yes, always (c) yes, by half (d) no, work stays the same
17. 17.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) chemical (c) mechanical (d) biomedical
18. 18.True or false: to agree before changing is good teamwork. (a) False (b) True
19. 19.🏋️ A force of 200 N pushes a cart 7 m along the floor. How much work is done, in joules?
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 100 cm, the fulcrum at 70 cm and the load at 30 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
21. 21.True or false: a hair band needs an electrical conductor. (a) True (b) False
22. 22.🤝 A team of 3 shares 6 equal jobs fairly. Each job takes 9 minutes. How many minutes does each person work?
23. 23.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) anywhere (c) closer to the pivot (d) on the pivot
24. 24.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
25. 25.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🔄 Is the engineering design process done only once? (a) yes, only once (b) only on Sundays (c) no, it repeats (d) only for big jobs
27. 27.🤝 A team plans for 40 minutes, builds for 15 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
28. 28.⚖️ A lever bar balances. The load is 140 N at 10 cm from the fulcrum. The effort is ? N at 70 cm from the fulcrum on the other side. What is the missing force in newtons?
29. 29.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
30. 30.🧪 A paper bridge was tested three times. It held 310 g, 250 g and 250 g. What is the mean (average) load it held, in grams?
31. 31.📋 Your team’s budget is ₹140. You must buy one roll of tape for ₹10. Straws cost ₹5 each. What is the greatest number of straws you can buy?
32. 32.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a constraint (b) a criterion
33. 33.True or false: a chemical engineer designs school networks. (a) True (b) False
34. 34.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a squeezed spring (c) a stretched rubber band (d) a tall bridge tower
35. 35.🔢 To follow the engineering design process, what comes right after “Imagine”? (a) Create (b) Test (c) Ask (d) Plan
36. 36.⚖️ Which class of lever is a fishing rod? (a) class 1 (b) class 3 (c) class 2
37. 37.Which of these uses triangles? (a) an old stone bridge (b) a lintel over a door (c) a fort gateway (d) a roof truss
38. 38.⚙️ Which simple machine is the tip of a nail? (a) wheel and axle (b) screw (c) pulley (d) wedge
39. 39.🛠️ What does an engineer do before building anything? (a) paints the model (b) understands the problem (c) builds at once (d) buys every material
40. 40.🏋️ A force of 40 N pushes a cart 4 m along the floor. How much work is done, in joules?

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