Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 46 · 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 touch a hot glue tip is safe. (a) False (b) True
2. 2.True or false: “use only paper and tape” is a criterion (a goal). (a) False (b) True
3. 3.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion
4. 4.🔍 Which is the odd one out? (a) a wood screw (b) a nut and bolt (c) a door stopper (d) a bottle cap
5. 5.True or false: “hold up 500 g” is a criterion (a goal). (a) False (b) True
6. 6.🛞 How can we reduce friction in a machine? (a) add sand (b) oil the moving parts (c) press parts harder (d) make parts rough
7. 7.True or false: an electrical engineer designs electric motors. (a) False (b) True
8. 8.🛠️ Is a ceiling fan made by engineers or found in nature? (a) found in nature (b) made by engineers
9. 9.True or false: “tall towers hold cables” is an arch bridge. (a) False (b) True
10. 10.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
11. 11.Which of these happens in the Ask step? (a) build the model (b) make a prototype (c) define the problem (d) brainstorm many ideas
12. 12.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
13. 13.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to save ink only (c) to hide sizes (d) to make them pretty
14. 14.🧪 Three prototype bridges were tested with the same method. Design A held 340 g, design B held 390 g and design C held 290 g. Which design was the strongest? (a) design C (b) design A (c) design B
15. 15.True or false: a water tank needs a transparent material. (a) True (b) False
16. 16.🔧 Which tool would you use to smooth a rough edge? (a) a spirit level (b) a screwdriver (c) sandpaper (d) a hammer
17. 17.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the rock (b) on the fulcrum (c) far from the fulcrum (d) near the fulcrum
18. 18.Which of these is caused by gravity? (a) lifting a school bag (b) squeezing a lemon (c) pedalling a cycle (d) rain falls to the ground
19. 19.🔄 In which step do engineers draw a labelled diagram? (a) Ask (b) Plan (c) Test (d) Improve
20. 20.Which of these is an arch bridge? (a) the longest spans of all (b) a rope bridge in hills (c) a flat deck on piers (d) pushes out on its ends
21. 21.🏋️ A force of 260 N pushes a cart 10 m along the floor. How much work is done, in joules?
22. 22.💪 A cart is pulled to the right with 25 N and to the left with 35 N. Which way does the net force act? (a) to the right (b) to the left (c) no net force
23. 23.True or false: to carry scissors closed is safe. (a) True (b) False
24. 24.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
25. 25.🔺 Which strong shape does a lintel over a door use? (a) dome (b) arch (c) triangle (d) beam
26. 26.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) cardboard (d) paper
27. 27.🏋️ A force of 150 N pushes a cart 5 m along the floor. How much work is done, in joules?
28. 28.True or false: powder on a carrom board gives less friction. (a) True (b) False
29. 29.True or false: “pushes out on its ends” is an arch bridge. (a) False (b) True
30. 30.Which need does a lift meet? (a) go through a mountain (b) store water for summer (c) keep food fresh longer (d) reach a top floor fast
31. 31.True or false: to wear safety goggles is safe. (a) False (b) True
32. 32.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) True (b) False
33. 33.⚖️ Going along a lever from one end to the other, the order is: fulcrum, effort, load. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
34. 34.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 100 g. Does it meet the criterion? (a) Yes (b) No
35. 35.🔍 Which is the odd one out? (a) change lots at once (b) use a new load each time (c) repeat each test (d) skip writing results
36. 36.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) using flexible joints
37. 37.🤝 A team of 3 shares 12 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
38. 38.True or false: a water filter is made by engineers. (a) False (b) True
39. 39.💪 Which force is at work: shoes grip the floor? (a) magnetic force (b) gravity (c) friction (d) muscular force
40. 40.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) aerospace (b) computer (c) mechanical (d) civil

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