Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 223 · 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.True or false: a dam helps people store water for summer. (a) False (b) True
2. 2.True or false: to listen to every idea is poor teamwork. (a) False (b) True
3. 3.True or false: a water filter is found in nature. (a) True (b) False
4. 4.Which of these is a suspension bridge? (a) the simplest bridge (b) the longest spans of all (c) a log across a stream (d) pushes out on its ends
5. 5.♻️ Is coal a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
6. 6.Which job is a saw for? (a) measure a long length (b) tighten a nut (c) smooth a rough edge (d) cut a wooden plank
7. 7.Which of these needs a waterproof material? (a) a water tank (b) a window pane (c) an oven glove (d) a plug pin
8. 8.True or false: a mechanical engineer designs a flyover. (a) True (b) False
9. 9.🛞 More or less friction: a wet tiled floor? (a) more friction (b) less friction
10. 10.📐 A beam is 430 cm long. How long is it in metres? =
11. 11.💪 Which force is at work: a thrown ball comes down? (a) friction (b) magnetic force (c) gravity (d) muscular force
12. 12.🌉 Which bridge type: “good for short gaps”? (a) beam bridge (b) arch bridge (c) suspension bridge
13. 13.🧱 Which property matters most for a magnifier lens? (a) heat insulator (b) flexible (c) transparent (d) waterproof
14. 14.True or false: an aerospace engineer refines crude oil. (a) False (b) True
15. 15.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 350 g. Does it meet the criterion? (a) No (b) Yes
16. 16.True or false: to ask who will use it is the Ask step. (a) True (b) False
17. 17.🌉 Which bridge type: “deck hangs from cables”? (a) suspension bridge (b) arch bridge (c) beam bridge
18. 18.What does the recorder do? (a) keeps the design notes (b) shares out the jobs (c) keeps the team on track (d) cuts and joins parts
19. 19.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to sell them at once (d) to decorate a room
20. 20.⚙️ Which simple machine is a crowbar? (a) inclined plane (b) screw (c) pulley (d) lever
21. 21.Which of these happens in the Ask step? (a) find the limits (b) try it out (c) brainstorm many ideas (d) check it against goals
22. 22.📐 On a plan, 1 cm stands for 2 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
23. 23.🔢 To follow the engineering design process, which comes first: “Create” or “Ask”? (a) Create (b) Ask
24. 24.♻️ Reduce, reuse or recycle: plant in old tyres? (a) recycle (b) reduce (c) reuse
25. 25.🧪 A paper bridge was tested three times. It held 280 g, 160 g and 160 g. What is the mean (average) load it held, in grams?
26. 26.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to save ink only (c) to make them pretty (d) to hide sizes
27. 27.🪢 Tension or compression: a table leg? (a) tension (b) compression
28. 28.📐 On a plan, 1 cm stands for 5 m. A real bridge is 75 m long. How long is it on the plan, in centimetres?
29. 29.True or false: a screw jack is a pulley. (a) False (b) True
30. 30.True or false: “fit on a school desk” is a criterion (a goal). (a) True (b) False
31. 31.📐 How many centimetres are in 1 metre? (a) 60 (b) 10 (c) 100 (d) 1000
32. 32.🛠️ Is a banyan tree made by engineers or found in nature? (a) made by engineers (b) found in nature
33. 33.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) stretched (tension) (b) not affected (c) twisted (d) squeezed (compression)
34. 34.🧱 Which property matters most for an umbrella cover? (a) waterproof (b) heat insulator (c) flexible (d) electrical conductor
35. 35.🧱 Is dry wood an electrical conductor or an insulator? (a) a conductor (b) an insulator
36. 36.📐 On a plan, 1 cm stands for 5 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
37. 37.⚖️ Which class of lever is a seesaw? (a) class 1 (b) class 2 (c) class 3
38. 38.⚖️ A lever bar balances. The load is 280 N at 20 cm from the fulcrum. The effort is ? N at 40 cm from the fulcrum on the other side. What is the missing force in newtons?
39. 39.🏋️ A machine lifts a load of 200 N when you push with 50 N. What is its mechanical advantage (MA)?
40. 40.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) aerospace (b) mechanical (c) civil (d) electrical

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