Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 427 · 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 recycle (make new things)? (a) buy less packaging (b) carry a cloth bag (c) give old books away (d) pulp old paper
2. 2.⚖️ A seesaw balances. Arjun (? N) sits 3 m from the pivot on one side; Ravi (420 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
3. 3.Which of these is a pulley? (a) a truck loading ramp (b) a playground slide (c) a well-bucket rope wheel (d) a jar lid
4. 4.🔢 To follow the engineering design process, which comes first: “Improve” or “Plan”? (a) Improve (b) Plan
5. 5.🔍 Which is the odd one out? (a) brass (b) copper (c) plastic (d) aluminium
6. 6.True or false: a movable pulley makes you pull 2× rope. (a) False (b) True
7. 7.🏋️ Pushing a crate 5 m took 400 J of work. What force was used, in newtons?
8. 8.🪢 A sign weighing 360 N hangs from 4 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
9. 9.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
10. 10.🛞 Is friction helpful or a problem here: machine parts heating up? (a) helpful (b) a problem
11. 11.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
12. 12.🛠️ What does an engineer mainly do? (a) only paints pictures (b) grows crops (c) designs useful solutions (d) sells tickets
13. 13.🏋️ Pushing a crate 7 m took 1680 J of work. What force was used, in newtons?
14. 14.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) aerospace (b) biomedical (c) electrical (d) civil
15. 15.🏋️ A force of 60 N did 60 J of work. How many metres did the object move?
16. 16.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 10 cm long in the drawing. How long is the real car, in centimetres?
17. 17.🛞 Why are tyres made with deep treads? (a) to grip the road (b) to save rubber (c) to go slower (d) to look nice
18. 18.⚖️ A seesaw balances. Kabir (400 N) sits ? m from the pivot on one side; Zoya (200 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
19. 19.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) rubber (b) cotton cloth (c) brass (d) plastic
21. 21.True or false: an electrical engineer plans a power grid. (a) False (b) True
22. 22.⚖️ A seesaw balances. Asha (760 N) sits ? m from the pivot on one side; Ravi (380 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
23. 23.True or false: pressing a doorbell is a pull. (a) False (b) True
24. 24.📐 On a plan, 1 cm stands for 2 m. A wall is 15 cm long on the plan. How long is the real wall, in metres?
25. 25.🏋️ Pushing a crate 1 m took 50 J of work. What force was used, in newtons?
26. 26.🧑‍🔧 Which kind of engineer runs a fertiliser plant? (a) mechanical (b) chemical (c) computer (d) civil
27. 27.📐 A beam is 540 cm long. How long is it in metres? =
28. 28.🧱 Which material is best for the core of an electric wire? (a) glass (b) wood (c) rubber (d) copper
29. 29.🔢 To follow the engineering design process, which comes first: “Ask” or “Imagine”? (a) Imagine (b) Ask
30. 30.🔺 Which strong shape does a crane arm use? (a) arch (b) dome (c) beam (d) triangle
31. 31.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to make them pretty (c) to save ink only (d) to hide sizes
32. 32.🔧 Which tool would you use to measure a long length? (a) a tape measure (b) sandpaper (c) a hammer (d) pliers
33. 33.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
34. 34.🪝 Fixed or movable pulley: which one halves the effort? (a) a movable pulley (b) a fixed pulley
35. 35.🏋️ Work is done when a force moves something … (a) without moving it (b) very slowly (c) through a distance (d) only upwards
36. 36.True or false: to check it against goals is the Ask step. (a) True (b) False
37. 37.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 7 N, sandpaper 8 N, ice 1 N, a glass sheet 5 N. How many newtons more were needed on sandpaper than on ice?
38. 38.🔍 Which is the odd one out? (a) hide a failed test (b) change only one thing (c) test it only once (d) use a new load each time
39. 39.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load × effort (c) load ÷ effort (d) load + effort
40. 40.🔍 Which is the odd one out? (a) use a new load each time (b) record every result (c) skip writing results (d) hide a failed test

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