Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 245 · 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 made by engineers? (a) a rainbow (b) a seashell (c) a river (d) a railway track
2. 2.💪 Which force is at work: shoes grip the floor? (a) friction (b) muscular force (c) magnetic force (d) gravity
3. 3.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
4. 4.True or false: a crowbar is a lever. (a) True (b) False
5. 5.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Create (b) Improve (c) Test (d) Imagine
6. 6.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 13 cm long in the drawing. How long is the real car, in centimetres?
7. 7.🔺 One side of a straw bridge is a row of 11 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
8. 8.📐 A beam is 980 cm long. How long is it in metres? =
9. 9.🔍 Which is the odd one out? (a) a bridge pier (b) a crane lifting cable (c) a hanging lamp chain (d) a swing chain
10. 10.🌉 Which bridge type: “a log across a stream”? (a) arch bridge (b) suspension bridge (c) beam bridge
11. 11.📐 How many millimetres are in 1 centimetre? (a) 100 (b) 1000 (c) 10 (d) 5
12. 12.🔢 To build and test a straw bridge, what comes right after “load it with coins”? (a) strengthen the weak part (b) sketch three ideas (c) choose and draw one (d) build it with straws
13. 13.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
14. 14.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
15. 15.True or false: a cloud is made by engineers. (a) True (b) False
16. 16.True or false: a crane arm uses a dome. (a) True (b) False
17. 17.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) having a wide base (c) using a light roof (d) fitting rubber base pads
18. 18.Which job does a mechanical engineer do? (a) designs hearing aids (b) designs satellites (c) designs bicycle gears (d) plans a power grid
19. 19.♻️ A family used to throw away 5 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 3 weeks?
20. 20.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) having a wide base (d) stacking loose bricks
21. 21.Which of these is in compression (pushed)? (a) a hanging lamp chain (b) a stretched rubber band (c) a tall bridge tower (d) a tug of war rope
22. 22.Which of these is a beam bridge? (a) deck hangs from cables (b) cables tied down at ends (c) pushes out on its ends (d) good for short gaps
23. 23.🌉 Which bridge type: “a flat deck on piers”? (a) suspension bridge (b) arch bridge (c) beam bridge
24. 24.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 4 m, how many metres of rope must you pull?
25. 25.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
26. 26.What does the tester do? (a) keeps the design notes (b) writes down results (c) shares out the jobs (d) runs the tests
27. 27.🔺 Which strong shape does a roof truss use? (a) triangle (b) arch (c) dome (d) beam
28. 28.🪝 Fixed or movable pulley: which one is on a flagpole top? (a) a movable pulley (b) a fixed pulley
29. 29.🧑‍🔧 Which kind of engineer plans a dam? (a) computer (b) chemical (c) biomedical (d) civil
30. 30.🌉 A beam bridge 75 m long rests on the two river banks and on piers in between, making equal spans of 25 m. How many piers are there?
31. 31.⚖️ A seesaw balances. Zoya (190 N) sits 2 m from the pivot on one side; Arjun (380 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
32. 32.🔢 To build and test a straw bridge, which is the FIRST step? (a) build it with straws (b) sketch three ideas (c) read the challenge rules (d) strengthen the weak part
33. 33.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 90 cm tall. Is it within the constraint? (a) Yes (b) No
34. 34.🧪 Is it good or poor testing to measure the same way? (a) good testing (b) poor testing
35. 35.🔍 Which is the odd one out? (a) a tow rope on a car (b) a stretched rubber band (c) a swing chain (d) a pillar under a roof
36. 36.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
37. 37.True or false: “a curve under the deck” is a suspension bridge. (a) True (b) False
38. 38.Which of these needs a flexible material? (a) a water tank (b) an umbrella cover (c) a skipping rope (d) a window pane
39. 39.🛠️ What does an engineer do before building anything? (a) builds at once (b) paints the model (c) understands the problem (d) buys every material
40. 40.True or false: to build the model is the Create step. (a) True (b) False

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