Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 207 · 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 design-process step is it to ask who will use it? (a) Imagine (b) Test (c) Plan (d) Ask
2. 2.🏋️ A 2 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
3. 3.⚖️ A seesaw balances. Ravi (220 N) sits ? m from the pivot on one side; Asha (440 N) sits 2 m from the pivot on the other side. What is the missing distance in metres?
4. 4.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
5. 5.🏋️ Work is done when a force moves something … (a) only upwards (b) very slowly (c) through a distance (d) without moving it
6. 6.💪 In which unit do we measure force? (a) newton (N) (b) metre (m) (c) second (s) (d) litre (L)
7. 7.Which of these happens in the Improve step? (a) list the materials (b) make it better, retest (c) brainstorm many ideas (d) define the problem
8. 8.Which of these is made by engineers? (a) a volcano (b) a ceiling fan (c) a coral reef (d) a mountain
9. 9.True or false: a movable pulley rises with the load. (a) False (b) True
10. 10.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.⚖️ Which class of lever is a broom when sweeping? (a) class 2 (b) class 3 (c) class 1
12. 12.🧱 Is dry wood an electrical conductor or an insulator? (a) an insulator (b) a conductor
13. 13.⚙️ A wedge is … (a) a wheel on a rod (b) a rope on a wheel (c) two ramps back to back (d) a bar on a pivot
14. 14.True or false: a computer engineer plans a space mission. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a mountain (b) a rainbow (c) a lift (d) a banyan tree
16. 16.True or false: a fixed pulley hangs on the rope loop. (a) True (b) False
17. 17.⚖️ Which class of lever is a nutcracker? (a) class 3 (b) class 1 (c) class 2
18. 18.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
19. 19.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 3 (b) class 1 (c) class 2
20. 20.⚖️ A seesaw balances. Asha (110 N) sits 4 m from the pivot on one side; Ravi (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
21. 21.🔍 Which is the odd one out? (a) graphite (b) brass (c) steel (d) rubber
22. 22.🔍 Which is the odd one out? (a) the tip of a nail (b) a knife edge (c) a chisel (d) a seesaw
23. 23.🔍 Which is the odd one out? (a) a stretched rubber band (b) a bridge pier (c) a swing chain (d) a hanging lamp chain
24. 24.⚖️ A seesaw balances. Arjun (200 N) sits 3 m from the pivot on one side; Meena (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
25. 25.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) anywhere (c) on the pivot (d) closer to the pivot
26. 26.🧪 Is it good or poor testing to hide a failed test? (a) poor testing (b) good testing
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
28. 28.Which job is a spirit level for? (a) cut a wooden plank (b) grip and bend wire (c) check a shelf is level (d) smooth a rough edge
29. 29.Which of these is an arch bridge? (a) pushes out on its ends (b) good for short gaps (c) a flat deck on piers (d) a log across a stream
30. 30.🪢 A concrete slab weighing 5400 N rests evenly on 6 identical pillars. What compression force does each pillar carry, in newtons?
31. 31.♻️ Reduce, reuse or recycle: turn plastic into tiles? (a) reduce (b) reuse (c) recycle
32. 32.💪 A cart is pulled to the right with 20 N and to the left with 5 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
33. 33.💪 Which force is at work: a rolling ball slows? (a) gravity (b) muscular force (c) magnetic force (d) friction
34. 34.🌉 In a suspension bridge, the main cables are in … (a) no force (b) compression (c) friction (d) tension
35. 35.🔍 Which is the odd one out? (a) a tyre with deep treads (b) a wheel on ball bearings (c) sand on a slippery path (d) a grippy rubber sole
36. 36.True or false: to ask who will use it is the Ask step. (a) True (b) False
37. 37.Which of these is found in nature? (a) a water filter (b) a satellite (c) a banyan tree (d) a bicycle
38. 38.🌉 Which bridge type: “a curve under the deck”? (a) arch bridge (b) beam bridge (c) suspension bridge
39. 39.🧑‍🔧 Which kind of engineer designs aeroplane wings? (a) civil (b) biomedical (c) aerospace (d) electrical
40. 40.⚖️ In a class 2 lever, what is in the middle? (a) the axle (b) the effort (c) the fulcrum (d) the load

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