Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 310 · 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 of these uses triangles? (a) a roof truss (b) a curved stone doorway (c) a plank over a drain (d) an igloo
2. 2.🪝 A pulley system lifts a 280 N load with an effort of 140 N. What is its mechanical advantage (MA)?
3. 3.Which of these is in tension (pulled)? (a) a brick at a wall base (b) a tall bridge tower (c) a temple column (d) a crane lifting cable
4. 4.Which of these is in compression (pushed)? (a) a stretched rubber band (b) a squeezed spring (c) a tow rope on a car (d) a tug of war rope
5. 5.📋 For a model bridge challenge, is “roll at least 2 metres” a constraint or a criterion? (a) a constraint (b) a criterion
6. 6.True or false: to redesign after testing is the Ask step. (a) False (b) True
7. 7.⚖️ Which class of lever is a fishing rod? (a) class 3 (b) class 2 (c) class 1
8. 8.Which of these is recycle (make new things)? (a) melt cans into new cans (b) carry a cloth bag (c) switch off unused lights (d) buy less packaging
9. 9.Which of these happens in the Ask step? (a) pick the build order (b) dream up possible fixes (c) ask who will use it (d) measure its performance
10. 10.⚖️ A lever bar balances. The load is 50 N at 30 cm from the fulcrum. The effort is ? N at 50 cm from the fulcrum on the other side. What is the missing force in newtons?
11. 11.🔢 To follow the engineering design process, which comes first: “Improve” or “Plan”? (a) Improve (b) Plan
12. 12.🔢 To follow the engineering design process, which is the FIRST step? (a) Ask (b) Imagine (c) Plan (d) Create
13. 13.🪝 More rope sections holding a load means … (a) less effort needed (b) the load floats (c) more effort needed (d) no change
14. 14.⚖️ Turning effect = force × … (a) distance from fulcrum (b) time taken (c) colour of bar (d) mass of fulcrum
15. 15.🏋️ Pushing a crate 7 m took 490 J of work. What force was used, in newtons?
16. 16.True or false: a tall bridge tower is in tension (pulled). (a) False (b) True
17. 17.True or false: to tighten a nut, use a spanner. (a) True (b) False
18. 18.⚖️ On a seesaw, a heavier child should sit … (a) anywhere (b) on the pivot (c) closer to the pivot (d) farther from the pivot
19. 19.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
20. 20.🪝 What does a single fixed pulley change? (a) the size of the load (b) gravity (c) the colour of rope (d) the direction of pull
21. 21.🌉 Which bridge type can cross the widest gap in one span? (a) arch bridge (b) suspension bridge (c) beam bridge (d) log bridge
22. 22.Which of these is a wedge? (a) a wood screw (b) a seesaw (c) a chisel (d) a water tap handle
23. 23.🧑‍🔧 Which kind of engineer designs a flyover? (a) chemical (b) electrical (c) biomedical (d) civil
24. 24.🏋️ A force of 40 N did 160 J of work. How many metres did the object move?
25. 25.Which of these is in tension (pulled)? (a) a pillar under a roof (b) a table leg (c) a stone in an arch (d) a hanging lamp chain
26. 26.⚖️ A lever balances when … (a) the bar is short (b) turning effects match (c) the fulcrum moves (d) both weights are equal
27. 27.📋 A constraint is … (a) a goal for success (b) a kind of glue (c) a limit you must keep to (d) a final test
28. 28.📐 On a plan, 1 cm stands for 5 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
29. 29.🏋️ A force of 90 N did 540 J of work. How many metres did the object move?
30. 30.🛠️ Is a rainbow made by engineers or found in nature? (a) found in nature (b) made by engineers
31. 31.⚖️ A seesaw balances. Asha (170 N) sits 1 m from the pivot on one side; Arjun (170 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
32. 32.🛞 Is friction helpful or a problem here: a knot holding a rope? (a) a problem (b) helpful
33. 33.Which need does a lift meet? (a) cross a wide river (b) make water safe to drink (c) make power from sunlight (d) reach a top floor fast
34. 34.Which of these is a suspension bridge? (a) a flat deck on piers (b) cables tied down at ends (c) good for short gaps (d) a log across a stream
35. 35.True or false: to cut away from your body is safe. (a) False (b) True
36. 36.🪝 Fixed or movable pulley: which one halves the effort? (a) a fixed pulley (b) a movable pulley
37. 37.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
38. 38.Which of these is made by engineers? (a) a seashell (b) a water filter (c) a banyan tree (d) a coral reef
39. 39.True or false: flowing river water is a non-renewable energy source. (a) False (b) True
40. 40.⚖️ A seesaw balances. Kabir (? N) sits 4 m from the pivot on one side; Arjun (640 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?

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