Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 718 · 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 team plans for 25 minutes, builds for 60 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
2. 2.🤝 A team of 4 shares 20 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
3. 3.📐 On a plan, 1 cm stands for 2 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
4. 4.Which of these needs a heat insulator? (a) the core of a wire (b) a hair band (c) an oven glove (d) a car windscreen
5. 5.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 110 cm and the load at 70 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
6. 6.True or false: “a log across a stream” is an arch bridge. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a knife edge (b) the tip of a nail (c) a door stopper (d) a flagpole rope wheel
8. 8.🛠️ People need to make power from sunlight. Which invention helps? (a) a solar panel (b) a water filter (c) a lift (d) a tunnel
9. 9.Which of these is in compression (pushed)? (a) a tug of war rope (b) a tow rope on a car (c) a stretched rubber band (d) a temple column
10. 10.⚖️ 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 3 (c) class 1
11. 11.True or false: to make it better, retest is the Improve step. (a) True (b) False
12. 12.🪝 A load of 340 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
13. 13.🔢 To build and test a straw bridge, which comes first: “strengthen the weak part” or “load it with coins”? (a) strengthen the weak part (b) load it with coins
14. 14.⚖️ A lever bar balances. The load is 1000 N at 50 cm from the fulcrum. The effort is ? N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
15. 15.🤝 In a design team, who keeps the design notes? (a) materials manager (b) tester (c) recorder (d) builder
16. 16.📐 A beam is 300 cm long. How long is it in metres? =
17. 17.True or false: a roof truss uses triangles. (a) True (b) False
18. 18.🔺 One side of a straw bridge is a row of 8 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
19. 19.🔧 Which tool would you use to turn a screw? (a) a screwdriver (b) a tape measure (c) a hammer (d) a spirit level
20. 20.True or false: “good for short gaps” is a suspension bridge. (a) False (b) True
21. 21.♻️ Is coal a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
22. 22.🧱 Which property matters most for a raincoat? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
23. 23.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) anywhere (c) farther from the pivot (d) on the pivot
24. 24.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
25. 25.What does the tester do? (a) cuts and joins parts (b) keeps the team on track (c) checks the goals are met (d) puts the model together
26. 26.True or false: “carry 10 coins” is a constraint (a limit). (a) False (b) True
27. 27.Which job does a chemical engineer do? (a) builds hospital scanners (b) makes medicines in bulk (c) designs knee implants (d) designs aeroplane wings
28. 28.Which of these uses a beam? (a) an electric pylon (b) a slab over a canal (c) a curved stone doorway (d) a roof truss
29. 29.🧪 A paper bridge was tested three times. It held 210 g, 170 g and 220 g. What is the mean (average) load it held, in grams?
30. 30.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
31. 31.True or false: to make a hole in wood, use a hand drill. (a) True (b) False
32. 32.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 5 N, a wooden plank 6 N, sandpaper 8 N, ice 4 N. Which surface gave the least friction? (a) ice (b) a glass sheet (c) a wooden plank (d) sandpaper
33. 33.🏋️ Work is done when a force moves something … (a) without moving it (b) very slowly (c) only upwards (d) through a distance
34. 34.What does the tester do? (a) writes down results (b) shares out the jobs (c) runs the tests (d) keeps the team on track
35. 35.Which job does a civil engineer do? (a) refines crude oil (b) designs power lines (c) designs a metro tunnel (d) designs a gearbox
36. 36.🪝 A load of 500 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
37. 37.True or false: to record every result is good testing. (a) True (b) False
38. 38.Which of these happens in the Improve step? (a) build the model (b) dream up possible fixes (c) think of wild ideas (d) make it better, retest
39. 39.🏋️ A 5 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
40. 40.True or false: a roof truss uses a beam. (a) True (b) False

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