Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 194 · 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.🛠️ People need to go through a mountain. Which invention helps? (a) a tunnel (b) a train (c) a fridge (d) a water filter
2. 2.Which of these is in tension (pulled)? (a) a tow rope on a car (b) a stone in an arch (c) a pillar under a roof (d) a brick at a wall base
3. 3.Which of these is made by engineers? (a) a bridge (b) a coral reef (c) a river (d) a mountain
4. 4.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) civil (b) mechanical (c) biomedical (d) chemical
5. 5.True or false: to do all the work alone is poor teamwork. (a) True (b) False
6. 6.Which need does a water filter meet? (a) talk to someone far away (b) reach a top floor fast (c) make power from sunlight (d) make water safe to drink
7. 7.♻️ Reduce, reuse or recycle: reuse gift paper? (a) recycle (b) reduce (c) reuse
8. 8.True or false: pressing a doorbell is a pull. (a) False (b) True
9. 9.⚖️ A lever bar balances. The load is 180 N at 10 cm from the fulcrum. The effort is 60 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
10. 10.True or false: to measure a long length, use a tape measure. (a) True (b) False
11. 11.True or false: to change only one thing is poor testing. (a) False (b) True
12. 12.🪢 Tension or compression: a squeezed spring? (a) compression (b) tension
13. 13.💪 Two children push a box to the right, one with 95 N and the other with 10 N. What is the net (total) force on the box, in newtons?
14. 14.🪝 A winch has a wheel of radius 14 cm and an axle of radius 2 cm. What effort on the wheel lifts a 350 N bucket on the axle, in newtons? (ideal)
15. 15.Which of these is caused by friction? (a) brakes stop a bicycle (b) a river flows downhill (c) an apple falls down (d) a fridge magnet sticks
16. 16.Which of these happens in the Create step? (a) check it against goals (b) make a prototype (c) think of wild ideas (d) try it out
17. 17.🔄 In which step do engineers draw a labelled diagram? (a) Plan (b) Improve (c) Ask (d) Test
18. 18.🔍 Which is the odd one out? (a) cut away from your body (b) let adults use hot glue (c) wear safety goggles (d) play near a moving drill
19. 19.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) squeezed (compression) (b) not affected (c) stretched (tension) (d) twisted
20. 20.⚖️ A lever bar balances. The load is 210 N at ? cm from the fulcrum. The effort is 90 N at 70 cm from the fulcrum on the other side. What is the missing distance in centimetres?
21. 21.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) building tall and narrow (c) fitting rubber base pads (d) using flexible joints
22. 22.Which of these is caused by magnetic force? (a) brakes stop a bicycle (b) a thrown ball comes down (c) a magnet picks up pins (d) a rolling ball slows
23. 23.True or false: to change only one thing is good testing. (a) False (b) True
24. 24.📐 On a plan, 1 cm stands for 5 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
25. 25.True or false: a biomedical engineer designs knee implants. (a) False (b) True
26. 26.True or false: a tug of war rope is in tension (pulled). (a) False (b) True
27. 27.True or false: an electrical engineer builds rockets. (a) False (b) True
28. 28.True or false: to measure the same way is poor testing. (a) False (b) True
29. 29.Which of these is a suspension bridge? (a) cables tied down at ends (b) a log across a stream (c) stones squeezed together (d) a curve under the deck
30. 30.Which of these happens in the Plan step? (a) build the model (b) draw a labelled diagram (c) try it out (d) think of wild ideas
31. 31.True or false: a roof truss uses triangles. (a) False (b) True
32. 32.🤝 In a design team, who writes down results? (a) builder (b) tester (c) team leader (d) recorder
33. 33.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
34. 34.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 60 cm and the load at 90 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
35. 35.📐 How many metres are in 1 kilometre? (a) 1000 (b) 100 (c) 10000 (d) 10
36. 36.True or false: a civil engineer lays out a highway. (a) True (b) False
37. 37.Which of these is found in nature? (a) a mobile phone (b) a waterfall (c) a lift (d) a bicycle
38. 38.True or false: to wear safety goggles is not safe. (a) True (b) False
39. 39.⚖️ A lever bar balances. The load is 320 N at ? cm from the fulcrum. The effort is 80 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
40. 40.⚙️ Which simple machine is a truck loading ramp? (a) lever (b) pulley (c) inclined plane (d) screw

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