Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 106 · 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.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to make them pretty (c) to hide sizes (d) to save ink only
2. 2.🤝 A team plans for 45 minutes, builds for 20 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
3. 3.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 24 cm tall. Is it within the constraint? (a) Yes (b) No
4. 4.What does the team leader do? (a) checks the goals are met (b) keeps the team on track (c) runs the tests (d) puts the model together
5. 5.Which of these is in tension (pulled)? (a) a table leg (b) a stone in an arch (c) a stretched rubber band (d) a temple column
6. 6.🔧 Which tool would you use to grip and bend wire? (a) a saw (b) pliers (c) a spirit level (d) a hand drill
7. 7.True or false: a claw hammer on a nail is a wheel and axle. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) be under 30 cm tall (b) use at most 20 straws (c) hold up 500 g (d) fit on a school desk
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
10. 10.Which of these is found in nature? (a) a dam (b) a mountain (c) a bridge (d) a lift
11. 11.📐 A beam is 520 cm long. How long is it in metres? =
12. 12.🌉 Which bridge type: “a curve under the deck”? (a) arch bridge (b) suspension bridge (c) beam bridge
13. 13.🔄 Which design-process step is it to find the limits? (a) Ask (b) Improve (c) Create (d) Imagine
14. 14.♻️ Reduce, reuse or recycle: carry a cloth bag? (a) reduce (b) reuse (c) recycle
15. 15.Which of these uses triangles? (a) a bicycle frame (b) a shelf on two brackets (c) a plank over a drain (d) an igloo
16. 16.True or false: a hanging lamp chain is in tension (pulled). (a) True (b) False
17. 17.🛞 More or less friction: a wheel on ball bearings? (a) less friction (b) more friction
18. 18.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a microscope (d) a telescope
19. 19.🏋️ A force of 240 N did 1200 J of work. How many metres did the object move?
20. 20.💪 A box weighs 500 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
21. 21.True or false: an electrical engineer designs bicycle gears. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a table leg (b) a tall bridge tower (c) a pillar under a roof (d) a tug of war rope
23. 23.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
24. 24.♻️ Is sunlight a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
25. 25.⚖️ A seesaw balances. Meena (320 N) sits 2 m from the pivot on one side; Arjun (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
26. 26.True or false: a mechanical engineer designs aeroplane wings. (a) False (b) True
27. 27.Which of these happens in the Ask step? (a) find the limits (b) list the materials (c) dream up possible fixes (d) make it better, retest
28. 28.🔄 Is the engineering design process done only once? (a) only for big jobs (b) no, it repeats (c) yes, only once (d) only on Sundays
29. 29.Which of these is reuse (use again)? (a) refill a water bottle (b) turn plastic into tiles (c) melt cans into new cans (d) print on both sides
30. 30.🔺 Which shape keeps its shape best when its corners are pinned? (a) hexagon (b) rectangle (c) square (d) triangle
31. 31.Which of these is caused by muscular force? (a) a compass needle turns (b) a rolling ball slows (c) a thrown ball comes down (d) lifting a school bag
32. 32.🔢 To build and test a straw bridge, which is the FIRST step? (a) load it with coins (b) strengthen the weak part (c) choose and draw one (d) read the challenge rules
33. 33.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) steel (d) plastic
34. 34.True or false: a rainbow is found in nature. (a) True (b) False
35. 35.⚖️ A seesaw balances. Ravi (? N) sits 3 m from the pivot on one side; Zoya (480 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
36. 36.True or false: a fixed pulley only changes direction. (a) False (b) True
37. 37.🤝 In a design team, who collects the supplies? (a) recorder (b) builder (c) tester (d) materials manager
38. 38.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
39. 39.🔍 Which is the odd one out? (a) a crane lifting cable (b) a squeezed spring (c) a tow rope on a car (d) a stretched rubber band
40. 40.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 7 m, how many metres of rope must you pull?

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