Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 175 · 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: diesel is a renewable energy source. (a) False (b) True
2. 2.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) using a light roof (d) keeping a simple shape
3. 3.True or false: pushing a trolley is a push. (a) True (b) False
4. 4.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 3 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
5. 5.🤝 How do engineers share a design with others? (a) secret notes (b) only talking fast (c) clear labelled sketches (d) no drawings at all
6. 6.♻️ Reduce, reuse or recycle: turn plastic into tiles? (a) reduce (b) reuse (c) recycle
7. 7.Which of these is found in nature? (a) a lift (b) a water filter (c) a coral reef (d) a bicycle
8. 8.Which of these is an inclined plane? (a) a seesaw (b) a steering wheel (c) a road up a hill (d) a knife edge
9. 9.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Imagine (b) Improve (c) Test (d) Create
10. 10.Which of these is an arch bridge? (a) a log across a stream (b) tall towers hold cables (c) a flat deck on piers (d) pushes out on its ends
11. 11.🛠️ People need to see very tiny things. Which invention helps? (a) a solar panel (b) a bridge (c) a fridge (d) a microscope
12. 12.🏋️ A force of 450 N did 3600 J of work. How many metres did the object move?
13. 13.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
14. 14.🛠️ Which of these is a problem an engineer could solve? (a) a boring story (b) a road that floods (c) a lost cricket match (d) a sad song
15. 15.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reuse (b) reduce (c) recycle
16. 16.Which need does a telephone meet? (a) go through a mountain (b) talk to someone far away (c) see very tiny things (d) store water for summer
17. 17.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
18. 18.🔺 Which strong shape does a crane arm use? (a) beam (b) triangle (c) arch (d) dome
19. 19.🪢 Tension or compression: a table leg? (a) compression (b) tension
20. 20.True or false: a tunnel helps people cross a wide river. (a) True (b) False
21. 21.🔺 One side of a straw bridge is a row of 8 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
22. 22.True or false: to change lots at once is poor testing. (a) True (b) False
23. 23.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
24. 24.Which of these is caused by friction? (a) a river flows downhill (b) lifting a school bag (c) a magnet picks up pins (d) shoes grip the floor
25. 25.⚙️ Which simple machine is a door stopper? (a) pulley (b) inclined plane (c) lever (d) wedge
26. 26.📐 On a plan, 1 cm stands for 10 m. A real bridge is 110 m long. How long is it on the plan, in centimetres?
27. 27.True or false: to record every result is good testing. (a) True (b) False
28. 28.🪝 A pulley system lifts a 380 N load with an effort of 190 N. What is its mechanical advantage (MA)?
29. 29.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 20 cm and the load at 40 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
30. 30.Which of these happens in the Improve step? (a) brainstorm many ideas (b) make it better, retest (c) list the materials (d) define the problem
31. 31.🧑‍🔧 Which kind of engineer designs artificial limbs? (a) civil (b) chemical (c) biomedical (d) electrical
32. 32.🛞 Which surface gives the MOST friction to a sliding block? (a) glass (b) polished marble (c) ice (d) sandpaper
33. 33.True or false: a mechanical engineer designs aeroplane wings. (a) True (b) False
34. 34.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) switch off gravity (c) make new energy (d) use a smaller force
35. 35.📐 How many centimetres are in 1 metre? (a) 100 (b) 1000 (c) 10 (d) 60
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
37. 37.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 140 g. How many more grams did it hold?
38. 38.⚖️ A seesaw balances. Meena (330 N) sits 1 m from the pivot on one side; Asha (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
39. 39.Which of these uses triangles? (a) a lintel over a door (b) an old stone bridge (c) a plank over a drain (d) a truss bridge side
40. 40.🧑‍🔧 Which kind of engineer designs electric motors? (a) mechanical (b) civil (c) electrical (d) aerospace

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