Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 158 · 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.🏋️ Work is done when a force moves something … (a) very slowly (b) only upwards (c) through a distance (d) without moving it
2. 2.True or false: a biomedical engineer designs a gearbox. (a) True (b) False
3. 3.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) friction (c) muscular force (d) gravity
4. 4.🪝 What does a single fixed pulley change? (a) the size of the load (b) the colour of rope (c) gravity (d) the direction of pull
5. 5.🧱 Which material is best for a window pane? (a) glass (b) wood (c) brick (d) steel
6. 6.True or false: “use at most 20 straws” is a criterion (a goal). (a) False (b) True
7. 7.🪢 A stage stands on 4 identical legs and each leg is squeezed with 300 N. What is the total load on the stage, in newtons?
8. 8.🪝 A well winch has a handle (wheel) of radius 8 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
9. 9.🪝 A load of 360 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
10. 10.Which of these is caused by friction? (a) a thrown ball comes down (b) lifting a school bag (c) shoes grip the floor (d) a river flows downhill
11. 11.True or false: powder on a carrom board gives more friction. (a) False (b) True
12. 12.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes an 800 N box up it, in newtons? (ideal ramp, no friction)
13. 13.🧑‍🔧 Which kind of engineer designs a paint factory? (a) biomedical (b) chemical (c) civil (d) mechanical
14. 14.📐 On a plan, 1 cm stands for 5 m. A wall is 9 cm long on the plan. How long is the real wall, in metres?
15. 15.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
16. 16.Which of these is recycle (make new things)? (a) reuse gift paper (b) give old books away (c) melt glass into new jars (d) use a jar as a pen stand
17. 17.🔍 Which is the odd one out? (a) a bridge (b) a bicycle (c) a seashell (d) a satellite
18. 18.True or false: a round doorknob is a wheel and axle. (a) False (b) True
19. 19.🤝 A team plans for 30 minutes, builds for 10 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
20. 20.True or false: to leave tools on the floor is safe. (a) False (b) True
21. 21.True or false: a squeezed spring is in tension (pulled). (a) False (b) True
22. 22.Which of these is made by engineers? (a) a rainbow (b) a bridge (c) a waterfall (d) a river
23. 23.🪝 A wheel and axle is a big wheel fixed to … (a) a smaller rod (axle) (b) a sharp wedge (c) a loose rope (d) a flat ramp
24. 24.True or false: to measure the same way is poor testing. (a) False (b) True
25. 25.True or false: chalk on a gym bar gives less friction. (a) True (b) False
26. 26.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 9 N, a carpet 10 N, ice 1 N, a glass sheet 5 N. Which surface gave the most friction? (a) a glass sheet (b) a wooden plank (c) ice (d) a carpet
27. 27.Which of these happens in the Create step? (a) define the problem (b) ask who will use it (c) make a prototype (d) list the materials
28. 28.True or false: to change lots at once is poor testing. (a) False (b) True
29. 29.💪 A cart is pulled to the right with 70 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
30. 30.💪 In a tug of war, one team pulls right with 90 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
31. 31.📐 A beam is 660 cm long. How long is it in metres? =
32. 32.🔍 Which is the odd one out? (a) a bridge (b) a dam (c) a satellite (d) a river
33. 33.True or false: to pick the build order is the Test step. (a) False (b) True
34. 34.🔺 Which strong shape does a roof truss use? (a) beam (b) triangle (c) dome (d) arch
35. 35.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 550 g. Does it meet the criterion? (a) No (b) Yes
36. 36.True or false: a rough doormat gives more friction. (a) True (b) False
37. 37.🧱 Which property matters most for a roof sheet? (a) flexible (b) heat insulator (c) electrical conductor (d) waterproof
38. 38.🔍 Which is the odd one out? (a) a coral reef (b) a dam (c) a water filter (d) a bridge
39. 39.⚖️ A lever bar balances. The load is 30 N at 50 cm from the fulcrum. The effort is ? N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.True or false: a swing chain is in tension (pulled). (a) False (b) True

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