Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 511 · 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 mechanical engineer do? (a) designs electric motors (b) designs bicycle gears (c) plans a space mission (d) lays out a highway
2. 2.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) adding steel to concrete (d) having a wide base
3. 3.🤝 A team plans for 60 minutes, builds for 10 minutes and then tests for 25 minutes, one after another. How many minutes is that in all?
4. 4.True or false: a round palace roof uses a dome. (a) False (b) True
5. 5.Which of these happens in the Improve step? (a) try it out (b) brainstorm many ideas (c) fix the weak part (d) check it against goals
6. 6.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
7. 7.True or false: a pair of tweezers is a class 3 lever (effort in the middle). (a) True (b) False
8. 8.True or false: a train helps people store water for summer. (a) False (b) True
9. 9.🔢 To follow the engineering design process, which comes first: “Test” or “Ask”? (a) Ask (b) Test
10. 10.📐 How many centimetres are in 1 metre? (a) 10 (b) 1000 (c) 60 (d) 100
11. 11.True or false: a spectacle lens needs a heat insulator. (a) True (b) False
12. 12.🛠️ Is a satellite made by engineers or found in nature? (a) found in nature (b) made by engineers
13. 13.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
14. 14.🔍 Which is the odd one out? (a) use a cracked tool (b) wear safety goggles (c) run while holding tools (d) play near a moving drill
15. 15.📐 How many millimetres are in 1 centimetre? (a) 10 (b) 5 (c) 1000 (d) 100
16. 16.Which of these is made by engineers? (a) a seashell (b) a rainbow (c) a waterfall (d) a dam
17. 17.🤝 Why do engineers work in teams? (a) to work alone (b) to argue more (c) to finish nothing (d) many skills and ideas
18. 18.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
19. 19.🧪 A paper bridge was tested three times. It held 220 g, 80 g and 150 g. What is the mean (average) load it held, in grams?
20. 20.True or false: a bridge helps people cross a wide river. (a) False (b) True
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 10 N, ice 2 N, a glass sheet 4 N, a wooden plank 7 N. Which surface gave the least friction? (a) a glass sheet (b) a carpet (c) a wooden plank (d) ice
23. 23.True or false: to make a hole in wood, use a hand drill. (a) True (b) False
24. 24.True or false: a switch contact needs an electrical conductor. (a) True (b) False
25. 25.🔺 How do engineers stop a square frame from wobbling? (a) take off a side (b) add a diagonal brace (c) paint it (d) make it bigger
26. 26.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reduce (b) reuse (c) recycle
27. 27.🛞 More or less friction: a box pushed on carpet? (a) less friction (b) more friction
28. 28.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) stacking loose bricks (d) using a light roof
29. 29.🏋️ A force of 170 N pushes a cart 10 m along the floor. How much work is done, in joules?
30. 30.🏋️ A force of 370 N pushes a cart 1 m along the floor. How much work is done, in joules?
31. 31.🌉 Which bridge type: “the longest spans of all”? (a) suspension bridge (b) beam bridge (c) arch bridge
32. 32.⚖️ A lever bar balances. The load is 120 N at ? cm from the fulcrum. The effort is 120 N at 20 cm from the fulcrum on the other side. What is the missing distance in centimetres?
33. 33.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 11 N, a glass sheet 1 N, a wooden plank 3 N, a carpet 7 N. Which surface gave the most friction? (a) a wooden plank (b) a carpet (c) a glass sheet (d) sandpaper
34. 34.🔺 A frame shaped like a hexagon is made of straws joined by loose pins, with 2 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
35. 35.⚖️ Turning effect = force × … (a) colour of bar (b) mass of fulcrum (c) distance from fulcrum (d) time taken
36. 36.Which of these is a screw? (a) a wood screw (b) a crane hook block (c) the tip of a nail (d) a steering wheel
37. 37.Which of these is caused by muscular force? (a) rubbing hands warms them (b) lifting a school bag (c) a magnet picks up pins (d) brakes stop a bicycle
38. 38.🔺 Which strong shape does a bicycle frame use? (a) dome (b) triangle (c) arch (d) beam
39. 39.True or false: a civil engineer plans a dam. (a) True (b) False
40. 40.🔢 To follow the engineering design process, which comes first: “Plan” or “Test”? (a) Plan (b) Test

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