Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 734 · 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 is the odd one out? (a) a tug of war rope (b) a temple column (c) a stretched rubber band (d) a tent guy rope
2. 2.🔍 Which is the odd one out? (a) a wheelchair ramp (b) a round doorknob (c) a playground slide (d) a road up a hill
3. 3.🧪 Three prototype bridges were tested with the same method. Design A held 130 g, design B held 180 g and design C held 230 g. Which design was the strongest? (a) design C (b) design B (c) design A
4. 4.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 3 cm long in the drawing. How long is the real car, in centimetres?
5. 5.⚖️ A lever bar balances. The load is 80 N at 50 cm from the fulcrum. The effort is ? N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
6. 6.Which of these is in tension (pulled)? (a) a table leg (b) a tall bridge tower (c) a swing chain (d) a pillar under a roof
7. 7.📋 A constraint is … (a) a limit you must keep to (b) a kind of glue (c) a goal for success (d) a final test
8. 8.Which need does a bridge meet? (a) keep food fresh longer (b) go through a mountain (c) see very tiny things (d) cross a wide river
9. 9.Which of these happens in the Ask step? (a) measure its performance (b) define the problem (c) list the materials (d) make it better, retest
10. 10.🏋️ A smooth ramp is 8 m long and rises 2 m. What effort pushes a 3600 N box up it, in newtons? (ideal ramp, no friction)
11. 11.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
12. 12.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
13. 13.🤝 In a design team, who runs the tests? (a) builder (b) team leader (c) tester (d) recorder
14. 14.True or false: “finish in 40 minutes” is a criterion (a goal). (a) False (b) True
15. 15.True or false: sunlight is a non-renewable energy source. (a) True (b) False
16. 16.🌉 A beam bridge 300 m long is split by piers into 10 equal spans. How long is each span, in metres?
17. 17.⚖️ A lever bar balances. The load is 240 N at 20 cm from the fulcrum. The effort is 60 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
18. 18.🧪 A paper bridge was tested three times. It held 260 g, 230 g and 260 g. What is the mean (average) load it held, in grams?
19. 19.True or false: a slab over a canal uses a beam. (a) False (b) True
20. 20.True or false: a crowbar is a class 3 lever (effort in the middle). (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a bottle cap (b) a screw jack (c) a wood screw (d) a chisel
22. 22.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
23. 23.♻️ Reduce, reuse or recycle: switch off unused lights? (a) reuse (b) recycle (c) reduce
24. 24.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) aerospace (b) electrical (c) chemical (d) civil
25. 25.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
26. 26.🌉 A beam bridge is 450 m long. Piers split it into equal spans of 45 m. How many spans are there?
27. 27.Which of these needs an electrical conductor? (a) the core of a wire (b) an oven glove (c) a boat hull (d) a magnifier lens
28. 28.🤝 Why do engineers work in teams? (a) to finish nothing (b) to argue more (c) many skills and ideas (d) to work alone
29. 29.Which of these is found in nature? (a) a lift (b) a mountain (c) a water filter (d) a mobile phone
30. 30.Which of these is recycle (make new things)? (a) carry a cloth bag (b) fix a dripping tap (c) pulp old paper (d) print on both sides
31. 31.🤝 In a design team, who puts the model together? (a) materials manager (b) team leader (c) tester (d) builder
32. 32.True or false: to use a cracked tool is safe. (a) True (b) False
33. 33.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
34. 34.🔺 A flat frame has 8 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
35. 35.What does the builder do? (a) runs the tests (b) puts the model together (c) collects the supplies (d) checks the goals are met
36. 36.🧪 The first prototype held 200 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
37. 37.🔍 Which is the odd one out? (a) cotton cloth (b) dry wood (c) rubber (d) copper
38. 38.🧪 A paper bridge was tested three times. It held 230 g, 150 g and 280 g. What is the mean (average) load it held, in grams?
39. 39.🪝 What does a single fixed pulley change? (a) gravity (b) the colour of rope (c) the size of the load (d) the direction of pull
40. 40.True or false: the core of a wire needs a flexible material. (a) False (b) True

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