Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 136 · 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 load of 40 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
2. 2.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, always (b) yes, it works (c) only if it is red (d) no, it breaks a limit
3. 3.True or false: “float for 1 minute” is a constraint (a limit). (a) False (b) True
4. 4.📐 A beam is 770 cm long. How long is it in metres? =
5. 5.📋 For a model bridge challenge, is “use only paper and tape” a constraint or a criterion? (a) a constraint (b) a criterion
6. 6.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 1500 N box up it, in newtons? (ideal ramp, no friction)
7. 7.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
8. 8.⚖️ A lever bar balances. The load is 800 N at ? cm from the fulcrum. The effort is 200 N at 80 cm from the fulcrum on the other side. What is the missing distance in centimetres?
9. 9.True or false: a tea flask lining needs a waterproof material. (a) True (b) False
10. 10.🪢 A sign weighing 440 N hangs from 4 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
11. 11.🌉 A beam bridge 240 m long rests on the two river banks and on piers in between, making equal spans of 20 m. How many piers are there?
12. 12.🔍 Which is the odd one out? (a) use a cracked tool (b) run while holding tools (c) let adults use hot glue (d) leave tools on the floor
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
14. 14.True or false: an axe blade is a wedge. (a) False (b) True
15. 15.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
16. 16.🪝 Fixed or movable pulley: which one stays in one place? (a) a movable pulley (b) a fixed pulley
17. 17.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
18. 18.🌉 Which bridge type can cross the widest gap in one span? (a) beam bridge (b) log bridge (c) arch bridge (d) suspension bridge
19. 19.⚖️ A lever balances when … (a) the fulcrum moves (b) turning effects match (c) the bar is short (d) both weights are equal
20. 20.🔍 Which is the odd one out? (a) a volcano (b) a railway track (c) a waterfall (d) a seashell
21. 21.True or false: to cut a wooden plank, use a hammer. (a) True (b) False
22. 22.🧪 Three prototype bridges were tested with the same method. Design A held 210 g, design B held 310 g and design C held 260 g. Which design was the strongest? (a) design A (b) design C (c) design B
23. 23.🤝 How do engineers share a design with others? (a) no drawings at all (b) only talking fast (c) secret notes (d) clear labelled sketches
24. 24.🔺 One side of a straw bridge is a row of 9 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
25. 25.⚖️ In a class 3 lever, what is in the middle? (a) the fulcrum (b) the effort (c) the pulley (d) the load
26. 26.🔄 Which design-process step is it to build the model? (a) Test (b) Improve (c) Plan (d) Create
27. 27.🤝 In a design team, who writes down results? (a) tester (b) team leader (c) recorder (d) materials manager
28. 28.True or false: ocean wave energy is a renewable energy source. (a) False (b) True
29. 29.True or false: an old stone bridge uses a dome. (a) True (b) False
30. 30.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) twisted (b) not affected (c) stretched (tension) (d) squeezed (compression)
31. 31.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
32. 32.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
33. 33.True or false: a tunnel helps people cross a wide river. (a) True (b) False
34. 34.🏋️ A machine lifts a load of 560 N when you push with 140 N. What is its mechanical advantage (MA)?
35. 35.Which job is sandpaper for? (a) measure a long length (b) smooth a rough edge (c) turn a screw (d) check a shelf is level
36. 36.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 10 cm and the load at 50 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
37. 37.Which job does a computer engineer do? (a) keeps data safe online (b) designs satellites (c) designs artificial limbs (d) plans a space mission
38. 38.🏋️ A 12 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
39. 39.📋 Your team’s budget is ₹20. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
40. 40.🤝 In a design team, who keeps the team on track? (a) materials manager (b) tester (c) team leader (d) recorder

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