Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 92 · 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 job does a computer engineer do? (a) plans a dam (b) writes app software (c) runs a fertiliser plant (d) builds hospital scanners
2. 2.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing
3. 3.🤝 Is it good or poor teamwork to listen to every idea? (a) good teamwork (b) poor teamwork
4. 4.True or false: a water filter helps people store water for summer. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) wear safety goggles (b) put tools back after use (c) use a cracked tool (d) tie back long hair
6. 6.True or false: a wet tiled floor gives less friction. (a) True (b) False
7. 7.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a constraint (b) a criterion
8. 8.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a criterion (b) a constraint
9. 9.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
10. 10.True or false: plucking a mango is a pull. (a) False (b) True
11. 11.🪢 A sign weighing 780 N hangs from 6 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
12. 12.🛞 Rubbing your hands fast makes them … (a) magnetic (b) warm (c) cold (d) wet
13. 13.Which of these is a beam bridge? (a) tall towers hold cables (b) pushes out on its ends (c) the longest spans of all (d) good for short gaps
14. 14.Which of these is a lever? (a) an axe blade (b) a seesaw (c) a water tap handle (d) a steering wheel
15. 15.🔍 Which is the odd one out? (a) a water tap handle (b) a well winch handle (c) an axe blade (d) a steering wheel
16. 16.♻️ Reduce, reuse or recycle: buy less packaging? (a) recycle (b) reuse (c) reduce
17. 17.🛠️ Which of these is a problem an engineer could solve? (a) a sad song (b) a boring story (c) a road that floods (d) a lost cricket match
18. 18.🔍 Which is the odd one out? (a) a ceiling fan (b) a dam (c) a mountain (d) a bicycle
19. 19.🪝 A wheel and axle is a big wheel fixed to … (a) a flat ramp (b) a sharp wedge (c) a loose rope (d) a smaller rod (axle)
20. 20.🤝 A team plans for 20 minutes, builds for 35 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
21. 21.🧪 Is it good or poor testing to measure the same way? (a) poor testing (b) good testing
22. 22.🔍 Which is the odd one out? (a) a grippy rubber sole (b) a rough doormat (c) a smooth steel slide (d) chalk on a gym bar
23. 23.📐 On a plan, 1 cm stands for 10 m. A real bridge is 40 m long. How long is it on the plan, in centimetres?
24. 24.🏋️ Pushing a crate 1 m took 290 J of work. What force was used, in newtons?
25. 25.Which job does an electrical engineer do? (a) designs bicycle gears (b) designs a flyover (c) wires a new building (d) keeps data safe online
26. 26.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) using a light roof (d) adding steel to concrete
27. 27.🪢 A concrete slab weighing 900 N rests evenly on 3 identical pillars. What compression force does each pillar carry, in newtons?
28. 28.🤝 In a design team, who puts the model together? (a) recorder (b) builder (c) materials manager (d) tester
29. 29.🛠️ People need to go through a mountain. Which invention helps? (a) a tunnel (b) a microscope (c) a telephone (d) a fridge
30. 30.🏚️ 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 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
31. 31.🏋️ A force of 310 N pushes a cart 7 m along the floor. How much work is done, in joules?
32. 32.⚖️ A lever bar balances. The load is 250 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?
33. 33.🪝 A well winch has a handle (wheel) of radius 20 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
34. 34.Which of these uses triangles? (a) an old stone bridge (b) a planetarium roof (c) an electric pylon (d) a curved stone doorway
35. 35.True or false: “the longest spans of all” is an arch bridge. (a) True (b) False
36. 36.🏋️ Work is done when a force moves something … (a) very slowly (b) through a distance (c) without moving it (d) only upwards
37. 37.🔺 Why can an arch carry heavy loads? (a) it is very light (b) it works in compression (c) it bends easily (d) it is hollow
38. 38.🏋️ A machine lifts a load of 150 N when you push with 50 N. What is its mechanical advantage (MA)?
39. 39.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 100 N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.⚖️ A lever balances when … (a) both weights are equal (b) the bar is short (c) the fulcrum moves (d) turning effects match

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