Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 258 · 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 is caused by muscular force? (a) rubbing hands warms them (b) a rolling ball slows (c) a compass needle turns (d) squeezing a lemon
2. 2.🤝 How do engineers share a design with others? (a) no drawings at all (b) only talking fast (c) secret notes (d) clear labelled sketches
3. 3.True or false: to test it only once is poor testing. (a) True (b) False
4. 4.📐 A beam is 310 cm long. How long is it in metres? =
5. 5.True or false: to check it against goals is the Test step. (a) False (b) True
6. 6.⚙️ Which simple machine is a well winch handle? (a) inclined plane (b) lever (c) wheel and axle (d) pulley
7. 7.⚖️ A lever bar balances. The load is 210 N at ? cm from the fulcrum. The effort is 30 N at 70 cm from the fulcrum on the other side. What is the missing distance in centimetres?
8. 8.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
9. 9.🔺 Which strong shape does an igloo use? (a) dome (b) beam (c) triangle (d) arch
10. 10.🪢 Tension or compression: a brick at a wall base? (a) compression (b) tension
11. 11.⚖️ A seesaw balances. Arjun (220 N) sits 1 m from the pivot on one side; Zoya (110 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
12. 12.🔍 Which is the odd one out? (a) a temple column (b) a swing chain (c) a tent guy rope (d) a stretched rubber band
13. 13.Which of these is found in nature? (a) a seashell (b) a bridge (c) a satellite (d) a railway track
14. 14.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) near the fulcrum (b) far from the fulcrum (c) on the rock (d) on the fulcrum
15. 15.True or false: to think of wild ideas is the Create step. (a) True (b) False
16. 16.True or false: your forearm is a class 1 lever (fulcrum in the middle). (a) True (b) False
17. 17.True or false: to blame others for faults is poor teamwork. (a) False (b) True
18. 18.Which need does a lift meet? (a) see very tiny things (b) make power from sunlight (c) reach a top floor fast (d) go through a mountain
19. 19.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 0 cm and the load at 30 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
20. 20.🪝 A winch has a wheel of radius 6 cm and an axle of radius 2 cm. What effort on the wheel lifts a 90 N bucket on the axle, in newtons? (ideal)
21. 21.💪 A cart is pulled to the right with 75 N and to the left with 75 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
22. 22.🛞 Is friction helpful or a problem here: machine parts heating up? (a) helpful (b) a problem
23. 23.Which of these uses triangles? (a) a planetarium roof (b) a truss bridge side (c) a plank over a drain (d) a curved stone doorway
24. 24.⚙️ How many simple machines are there in the usual list? (a) 6 (b) 12 (c) 3 (d) 10
25. 25.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
26. 26.True or false: a ceiling fan is made by engineers. (a) False (b) True
27. 27.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
28. 28.🛞 Friction acts … (a) with the motion (b) only upwards (c) against the motion (d) only on ice
29. 29.🤝 Is it good or poor teamwork to share the work fairly? (a) poor teamwork (b) good teamwork
30. 30.True or false: diesel is a non-renewable energy source. (a) True (b) False
31. 31.📋 For a model bridge challenge, is “carry 10 coins” a constraint or a criterion? (a) a criterion (b) a constraint
32. 32.🔍 Which is the odd one out? (a) iron (b) graphite (c) plastic (d) copper
33. 33.True or false: “finish in 40 minutes” is a criterion (a goal). (a) True (b) False
34. 34.🔺 A flat frame has 12 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
35. 35.True or false: to measure a long length, use a tape measure. (a) False (b) True
36. 36.⚖️ Which class of lever is a bottle opener? (a) class 1 (b) class 3 (c) class 2
37. 37.🧑‍🔧 Which kind of engineer designs school networks? (a) mechanical (b) civil (c) chemical (d) computer
38. 38.🏋️ Pushing a crate 7 m took 1260 J of work. What force was used, in newtons?
39. 39.True or false: a movable pulley halves the effort. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a claw hammer on a nail (b) a bottle opener (c) a nutcracker (d) a well-bucket rope wheel

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