Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 391 · 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.True or false: to brainstorm many ideas is the Imagine step. (a) True (b) False
2. 2.🔺 How do engineers stop a square frame from wobbling? (a) take off a side (b) paint it (c) make it bigger (d) add a diagonal brace
3. 3.⚙️ Which simple machine is a nutcracker? (a) pulley (b) screw (c) inclined plane (d) lever
4. 4.⚖️ Going along a lever from one end to the other, the order is: load, fulcrum, effort. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
5. 5.🔺 One side of a straw bridge is a row of 6 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
6. 6.🧑‍🔧 Which kind of engineer plans a dam? (a) electrical (b) computer (c) aerospace (d) civil
7. 7.🪝 What does a single fixed pulley change? (a) the colour of rope (b) the direction of pull (c) gravity (d) the size of the load
8. 8.🧑‍🔧 Which kind of engineer designs a gearbox? (a) electrical (b) biomedical (c) mechanical (d) computer
9. 9.True or false: a dam is found in nature. (a) False (b) True
10. 10.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
11. 11.📐 A beam is 840 cm long. How long is it in metres? =
12. 12.True or false: “the simplest bridge” is an arch bridge. (a) True (b) False
13. 13.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 350 g. Does it meet the criterion? (a) Yes (b) No
14. 14.🏚️ 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 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
15. 15.Which of these is in tension (pulled)? (a) a stone in an arch (b) a brick at a wall base (c) a table leg (d) a tow rope on a car
16. 16.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a wooden plank 4 N, a carpet 5 N, sandpaper 8 N, a glass sheet 1 N. Which surface gave the most friction? (a) a glass sheet (b) a wooden plank (c) a carpet (d) sandpaper
17. 17.Which of these is made by engineers? (a) a coral reef (b) a ceiling fan (c) a cloud (d) a mountain
18. 18.🔍 Which is the odd one out? (a) a seesaw (b) a well winch handle (c) a bottle opener (d) a crowbar
19. 19.♻️ Is petrol a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
20. 20.📋 Criteria are … (a) the limits on money (b) the team names (c) goals a design must meet (d) the tools you use
21. 21.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
22. 22.🔄 In which step do engineers draw a labelled diagram? (a) Test (b) Plan (c) Ask (d) Improve
23. 23.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 5 N, a wooden plank 7 N, sandpaper 9 N. How many newtons more were needed on sandpaper than on ice?
24. 24.🤝 A team of 3 shares 12 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
25. 25.📐 How many centimetres are in 1 metre? (a) 10 (b) 1000 (c) 100 (d) 60
26. 26.⚖️ Which class of lever is a wheelbarrow? (a) class 1 (b) class 2 (c) class 3
27. 27.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 8 N, sandpaper 11 N, a glass sheet 1 N, a wooden plank 5 N. Which surface gave the most friction? (a) a glass sheet (b) sandpaper (c) a wooden plank (d) a carpet
28. 28.True or false: to agree before changing is good teamwork. (a) False (b) True
29. 29.📋 Your team’s budget is ₹17. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
30. 30.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
31. 31.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
32. 32.📋 Your team’s budget is ₹31. You must buy one roll of tape for ₹15. Straws cost ₹2 each. What is the greatest number of straws you can buy?
33. 33.Which of these is caused by muscular force? (a) an apple falls down (b) a compass needle turns (c) pedalling a cycle (d) shoes grip the floor
34. 34.🔍 Which is the odd one out? (a) float for 1 minute (b) stand in a fan breeze (c) use at most 20 straws (d) roll at least 2 metres
35. 35.⚙️ Which simple machine is a bottle opener? (a) wheel and axle (b) pulley (c) inclined plane (d) lever
36. 36.🛠️ People need to cross a wide river. Which invention helps? (a) a train (b) a bridge (c) a tunnel (d) a solar panel
37. 37.🔢 To follow the engineering design process, which is the FIRST step? (a) Improve (b) Imagine (c) Ask (d) Plan
38. 38.🧪 The first prototype held 160 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
39. 39.🔺 A flat frame has 11 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
40. 40.🔢 To follow the engineering design process, what comes right after “Test”? (a) Ask (b) Create (c) Imagine (d) Improve

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