Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 77 · 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 is the odd one out? (a) a bridge (b) a railway track (c) a waterfall (d) a water filter
2. 2.🪝 A pulley system has 1 rope section holding up the load. To lift the load by 4 m, how many metres of rope must you pull?
3. 3.🔍 Which is the odd one out? (a) test it only once (b) record every result (c) change only one thing (d) repeat each test
4. 4.🔍 Which is the odd one out? (a) powder on a carrom board (b) a wheel on ball bearings (c) a grippy rubber sole (d) skating on ice
5. 5.📋 Criteria are … (a) goals a design must meet (b) the limits on money (c) the team names (d) the tools you use
6. 6.🔍 Which is the odd one out? (a) skating on ice (b) sand on a slippery path (c) chalk on a gym bar (d) a box pushed on carpet
7. 7.Which of these needs a heat insulator? (a) a car seat belt (b) a hair band (c) an oven glove (d) a raincoat
8. 8.🧱 Is copper an electrical conductor or an insulator? (a) an insulator (b) a conductor
9. 9.Which of these happens in the Plan step? (a) ask who will use it (b) define the problem (c) draw a labelled diagram (d) redesign after testing
10. 10.🌉 Which bridge type: “good for short gaps”? (a) suspension bridge (b) beam bridge (c) arch bridge
11. 11.🔄 Which design-process step is it to make it better, retest? (a) Imagine (b) Test (c) Plan (d) Improve
12. 12.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) paper (d) plastic-coated cloth
13. 13.🧪 Why repeat a test three times? (a) to use more paper (b) to get reliable results (c) the first is wrong (d) it looks busy
14. 14.🪝 A bucket weighing 210 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
15. 15.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 10 (c) 6 (d) 12
16. 16.🏋️ A 6 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
17. 17.True or false: the tip of a nail is an inclined plane. (a) False (b) True
18. 18.🧑‍🔧 Which kind of engineer designs electric motors? (a) mechanical (b) chemical (c) electrical (d) aerospace
19. 19.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 900 bottles?
20. 20.⚖️ A seesaw balances. Asha (? N) sits 4 m from the pivot on one side; Arjun (560 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
21. 21.📐 A beam is 160 cm long. How long is it in metres? =
22. 22.True or false: a spectacle lens needs an electrical conductor. (a) False (b) True
23. 23.🧪 Why do engineers make prototypes? (a) to decorate a room (b) to test ideas cheaply (c) to avoid testing (d) to sell them at once
24. 24.🔍 Which is the odd one out? (a) a tent guy rope (b) a stretched rubber band (c) a table leg (d) a crane lifting cable
25. 25.True or false: a bicycle is made by engineers. (a) False (b) True
26. 26.🏋️ A machine lifts a load of 180 N when you push with 30 N. What is its mechanical advantage (MA)?
27. 27.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 2 (b) class 1 (c) class 3
28. 28.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
29. 29.🛠️ Is a bicycle made by engineers or found in nature? (a) found in nature (b) made by engineers
30. 30.🔍 Which is the odd one out? (a) a water filter (b) a dam (c) a mobile phone (d) a rainbow
31. 31.True or false: a mechanical engineer designs factory machines. (a) False (b) True
32. 32.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
33. 33.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
34. 34.🪢 A concrete slab weighing 2400 N rests evenly on 3 identical pillars. What compression force does each pillar carry, in newtons?
35. 35.True or false: to build the model is the Improve step. (a) True (b) False
36. 36.🪢 Tension or compression: a swing chain? (a) compression (b) tension
37. 37.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
38. 38.🔍 Which is the odd one out? (a) copper (b) rubber (c) iron (d) graphite
39. 39.True or false: an electrical engineer designs power lines. (a) True (b) False
40. 40.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint

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