Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 720 · 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.📐 On a plan, 1 cm stands for 5 m. A wall is 17 cm long on the plan. How long is the real wall, in metres?
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) making brittle joints (d) using a light roof
3. 3.True or false: to use the same load is poor testing. (a) True (b) False
4. 4.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 100 (c) 10 (d) 5
5. 5.True or false: a lift helps people reach a top floor fast. (a) False (b) True
6. 6.True or false: a mechanical engineer designs a gearbox. (a) False (b) True
7. 7.Which of these is in tension (pulled)? (a) a stone in an arch (b) a brick at a wall base (c) a squeezed spring (d) a hanging lamp chain
8. 8.🔍 Which is the odd one out? (a) a crane lifting cable (b) a tent guy rope (c) a stone in an arch (d) a hanging lamp chain
9. 9.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 70 cm and the load at 40 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
10. 10.True or false: “the longest spans of all” is a suspension bridge. (a) True (b) False
11. 11.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Improve (b) Create (c) Plan (d) Imagine
12. 12.🔺 One side of a straw bridge is a row of 13 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
13. 13.🔄 Which design-process step is it to list the materials? (a) Ask (b) Plan (c) Imagine (d) Improve
14. 14.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
15. 15.True or false: “cables tied down at ends” is a suspension bridge. (a) True (b) False
16. 16.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
17. 17.🪝 Fixed or movable pulley: which one only changes direction? (a) a fixed pulley (b) a movable pulley
18. 18.📐 On a plan, 1 cm stands for 20 m. A real bridge is 220 m long. How long is it on the plan, in centimetres?
19. 19.Which of these is in tension (pulled)? (a) a swing chain (b) a stone in an arch (c) a squeezed spring (d) a pillar under a roof
20. 20.📐 How many metres are in 1 kilometre? (a) 100 (b) 10 (c) 10000 (d) 1000
21. 21.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) listen and ask why (c) walk away (d) ignore it
22. 22.📐 On a plan, 1 cm stands for 5 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
23. 23.Which need does a dam meet? (a) keep food fresh longer (b) store water for summer (c) go through a mountain (d) see very tiny things
24. 24.True or false: “finish in 40 minutes” is a constraint (a limit). (a) False (b) True
25. 25.⚖️ Along a straight bar, measured from the left end, the effort is at 0 cm, the fulcrum at 20 cm and the load at 50 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
26. 26.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 60 cm and the load at 20 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
27. 27.🔍 Which is the odd one out? (a) rubber (b) glass (c) steel (d) clay pottery
28. 28.True or false: a smooth steel slide gives less friction. (a) False (b) True
29. 29.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 52 cm tall. Is it within the constraint? (a) Yes (b) No
30. 30.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
31. 31.🤝 Is it good or poor teamwork to ignore the team plan? (a) poor teamwork (b) good teamwork
32. 32.⚖️ A lever bar balances. The load is 360 N at 40 cm from the fulcrum. The effort is 160 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
33. 33.🔺 Why can an arch carry heavy loads? (a) it works in compression (b) it is hollow (c) it is very light (d) it bends easily
34. 34.🔧 Which tool would you use to grip and bend wire? (a) a tape measure (b) a hammer (c) pliers (d) a spirit level
35. 35.What does the builder do? (a) checks the goals are met (b) cuts and joins parts (c) shares out the jobs (d) tracks what is used up
36. 36.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) recycle (b) reuse (c) reduce
37. 37.🪝 A wheel and axle is a big wheel fixed to … (a) a smaller rod (axle) (b) a flat ramp (c) a sharp wedge (d) a loose rope
38. 38.🔄 Is the engineering design process done only once? (a) no, it repeats (b) yes, only once (c) only for big jobs (d) only on Sundays
39. 39.True or false: to measure the same way is poor testing. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) hold up 500 g (d) use at most 20 straws

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