Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 999 · 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.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
2. 2.True or false: to repeat each test is poor testing. (a) True (b) False
3. 3.📐 A beam is 600 cm long. How long is it in metres? =
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
5. 5.Which job is a saw for? (a) turn a screw (b) grip and bend wire (c) make a hole in wood (d) cut a wooden plank
6. 6.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 12 (c) 6 (d) 10
7. 7.🪢 Tension is a force that … (a) pushes or squeezes (b) heats things (c) turns things (d) pulls or stretches
8. 8.True or false: a wheel on ball bearings gives more friction. (a) False (b) True
9. 9.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
10. 10.True or false: “spend at most ₹100” is a constraint (a limit). (a) True (b) False
11. 11.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 3 N, a wooden plank 6 N, a carpet 7 N. Which surface gave the most friction? (a) a carpet (b) a glass sheet (c) a wooden plank (d) ice
12. 12.🌉 Which bridge type: “the longest spans of all”? (a) suspension bridge (b) arch bridge (c) beam bridge
13. 13.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
14. 14.🔄 In which step do engineers draw a labelled diagram? (a) Plan (b) Improve (c) Test (d) Ask
15. 15.🧪 The first prototype held 120 g. After the team improved it, the new prototype held 230 g. How many more grams did it hold?
16. 16.🔺 Which strong shape does a slab over a canal use? (a) beam (b) triangle (c) arch (d) dome
17. 17.Which of these happens in the Test step? (a) brainstorm many ideas (b) dream up possible fixes (c) pick the build order (d) try it out
18. 18.🛞 Rubbing your hands fast makes them … (a) cold (b) warm (c) magnetic (d) wet
19. 19.True or false: a pillar under a roof is in tension (pulled). (a) False (b) True
20. 20.⚖️ 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
21. 21.🤝 In a design team, who tracks what is used up? (a) tester (b) materials manager (c) builder (d) recorder
22. 22.🌉 In a stone arch bridge, the stones are in … (a) tension (b) compression (c) friction (d) no force
23. 23.🛞 More or less friction: chalk on a gym bar? (a) less friction (b) more friction
24. 24.⚖️ A lever balances when … (a) the fulcrum moves (b) turning effects match (c) both weights are equal (d) the bar is short
25. 25.📋 Your team’s budget is ₹35. You must buy one roll of tape for ₹5. Straws cost ₹3 each. What is the greatest number of straws you can buy?
26. 26.True or false: a civil engineer designs school networks. (a) False (b) True
27. 27.⚙️ Which simple machine is a seesaw? (a) wedge (b) lever (c) screw (d) wheel and axle
28. 28.🛞 Is friction helpful or a problem here: walking without slipping? (a) a problem (b) helpful
29. 29.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) aerospace (c) electrical (d) biomedical
30. 30.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
31. 31.⚖️ A seesaw balances. Kabir (? N) sits 1 m from the pivot on one side; Arjun (160 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
32. 32.🔍 Which is the odd one out? (a) use the same load (b) guess, do not measure (c) measure the same way (d) repeat each test
33. 33.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 50 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
34. 34.Which of these is a suspension bridge? (a) pushes out on its ends (b) stones squeezed together (c) cables tied down at ends (d) a curve under the deck
35. 35.📐 How many metres are in 1 kilometre? (a) 10 (b) 100 (c) 1000 (d) 10000
36. 36.🤝 In a design team, who cuts and joins parts? (a) builder (b) materials manager (c) recorder (d) team leader
37. 37.True or false: to leave tools on the floor is safe. (a) False (b) True
38. 38.📐 On a plan, 1 cm stands for 5 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
39. 39.True or false: “tall towers hold cables” is a suspension bridge. (a) True (b) False
40. 40.🛠️ Is a water filter made by engineers or found in nature? (a) made by engineers (b) found in nature

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