Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 436 · 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.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) not affected (b) twisted (c) stretched (tension) (d) squeezed (compression)
2. 2.🪝 Fixed or movable pulley: which one halves the effort? (a) a movable pulley (b) a fixed pulley
3. 3.💪 Which force is at work: rain falls to the ground? (a) muscular force (b) magnetic force (c) friction (d) gravity
4. 4.What does the recorder do? (a) collects the supplies (b) keeps the team on track (c) writes down results (d) puts the model together
5. 5.True or false: a car seat belt needs a waterproof material. (a) True (b) False
6. 6.True or false: “the longest spans of all” is a suspension bridge. (a) True (b) False
7. 7.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
8. 8.🧱 Which property matters most for a yoga mat? (a) waterproof (b) transparent (c) flexible (d) heat insulator
9. 9.True or false: an electrical engineer designs factory machines. (a) True (b) False
10. 10.True or false: a bridge helps people see very tiny things. (a) False (b) True
11. 11.♻️ Which energy source will never run out? (a) coal (b) petrol (c) diesel (d) sunlight
12. 12.🔍 Which is the odd one out? (a) a wheel on ball bearings (b) chalk on a gym bar (c) a smooth steel slide (d) oil on a squeaky hinge
13. 13.True or false: a computer engineer writes app software. (a) False (b) True
14. 14.♻️ A sustainable design … (a) uses the most plastic (b) protects the future (c) lasts one day (d) wastes water
15. 15.⚖️ A seesaw balances. Arjun (100 N) sits 3 m from the pivot on one side; Zoya (300 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
16. 16.🔺 One side of a straw bridge is a row of 6 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
17. 17.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.⚖️ A seesaw balances. Ravi (330 N) sits 1 m from the pivot on one side; Meena (110 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
19. 19.⚖️ A seesaw balances. Kabir (? N) sits 4 m from the pivot on one side; Meena (560 N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
20. 20.True or false: a movable pulley is on a flagpole top. (a) False (b) True
21. 21.True or false: a beam balance is a class 3 lever (effort in the middle). (a) True (b) False
22. 22.📐 On a plan, 1 cm stands for 5 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
23. 23.💪 A bag has a mass of 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
24. 24.🔢 To follow the engineering design process, what comes right after “Create”? (a) Ask (b) Test (c) Improve (d) Imagine
25. 25.⚖️ A lever bar balances. The load is 350 N at 20 cm from the fulcrum. The effort is 100 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
26. 26.Which need does a lift meet? (a) keep food fresh longer (b) make water safe to drink (c) make power from sunlight (d) reach a top floor fast
27. 27.🏋️ A 6 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
28. 28.True or false: to pick the build order is the Plan step. (a) False (b) True
29. 29.💪 A bag has a mass of 21 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
30. 30.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) triangle (c) hexagon (d) square
31. 31.🔺 Why can an arch carry heavy loads? (a) it is hollow (b) it bends easily (c) it works in compression (d) it is very light
32. 32.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) chemical (b) civil (c) mechanical (d) biomedical
33. 33.True or false: kicking a football is a pull. (a) True (b) False
34. 34.Which of these is an arch bridge? (a) cables tied down at ends (b) pushes out on its ends (c) a log across a stream (d) a rope bridge in hills
35. 35.True or false: to measure a long length, use a protractor. (a) False (b) True
36. 36.🔺 A beam bends under a load. Its top side is … (a) not affected (b) stretched (tension) (c) squeezed (compression) (d) floating
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 340 g and design C held 240 g. Which design was the strongest? (a) design C (b) design B (c) design A
38. 38.🔺 One side of a straw bridge is a row of 10 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
39. 39.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
40. 40.Which of these is a wedge? (a) a seesaw (b) a crowbar (c) a water tap handle (d) an axe blade

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