Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 677 · 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 design-process step is it to build the model? (a) Improve (b) Create (c) Plan (d) Imagine
2. 2.🌉 Which bridge type can cross the widest gap in one span? (a) suspension bridge (b) arch bridge (c) beam bridge (d) log bridge
3. 3.⚖️ A seesaw balances. Asha (540 N) sits 4 m from the pivot on one side; Meena (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
4. 4.⚖️ Which class of lever is a pair of scissors? (a) class 1 (b) class 2 (c) class 3
5. 5.🧪 The first prototype held 180 g. After the team improved it, the new prototype held 330 g. How many more grams did it hold?
6. 6.True or false: a crane lifting cable is in compression (pushed). (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a playground slide (b) a truck loading ramp (c) a road up a hill (d) a steering wheel
8. 8.🪢 Tension is a force that … (a) heats things (b) pulls or stretches (c) pushes or squeezes (d) turns things
9. 9.🌉 A beam bridge 360 m long is split by piers into 12 equal spans. How long is each span, in metres?
10. 10.True or false: a plank over a drain uses a beam. (a) True (b) False
11. 11.💪 A cart is pulled to the right with 30 N and to the left with 25 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
12. 12.🛠️ What does an engineer do before building anything? (a) buys every material (b) paints the model (c) understands the problem (d) builds at once
13. 13.⚖️ A seesaw balances. Asha (? N) sits 1 m from the pivot on one side; Zoya (200 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
14. 14.♻️ A sustainable design … (a) protects the future (b) uses the most plastic (c) lasts one day (d) wastes water
15. 15.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 60 cm and the load at 0 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
16. 16.True or false: powder on a carrom board gives more friction. (a) True (b) False
17. 17.🧑‍🔧 Which kind of engineer designs a gearbox? (a) biomedical (b) mechanical (c) chemical (d) aerospace
18. 18.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 9 m, how many metres of rope must you pull?
19. 19.True or false: to own up to a mistake is good teamwork. (a) True (b) False
20. 20.🪝 A pulley system has 4 rope sections holding up the load. To lift the load by 3 m, how many metres of rope must you pull?
21. 21.📋 Constraint: the tower must be no taller than 30 cm. The team’s tower is 32 cm tall. Is it within the constraint? (a) Yes (b) No
22. 22.True or false: a seesaw is a lever. (a) False (b) True
23. 23.True or false: “float for 1 minute” is a constraint (a limit). (a) True (b) False
24. 24.📋 Constraint: the tower must be no taller than 70 cm. The team’s tower is 68 cm tall. Is it within the constraint? (a) Yes (b) No
25. 25.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) flexible (c) waterproof (d) transparent
26. 26.🤝 In a design team, who cuts and joins parts? (a) materials manager (b) team leader (c) recorder (d) builder
27. 27.Which of these uses triangles? (a) a fort gateway (b) a truss bridge side (c) a curved stone doorway (d) a slab over a canal
28. 28.⚖️ A lever bar balances. The load is 400 N at ? cm from the fulcrum. The effort is 50 N at 80 cm from the fulcrum on the other side. What is the missing distance in centimetres?
29. 29.💪 Which force pulls everything towards the Earth? (a) gravity (b) friction (c) wind (d) magnetism
30. 30.🔺 Which strong shape does a shelf on two brackets use? (a) triangle (b) arch (c) dome (d) beam
31. 31.📐 Why do engineers use scale drawings? (a) to hide sizes (b) to save ink only (c) to make them pretty (d) big things fit on paper
32. 32.📋 A constraint is … (a) a goal for success (b) a limit you must keep to (c) a final test (d) a kind of glue
33. 33.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 20 N at 40 cm from the fulcrum on the other side. What is the missing force in newtons?
34. 34.🪝 A load of 300 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
35. 35.📐 On a plan, 1 cm stands for 2 m. A real bridge is 26 m long. How long is it on the plan, in centimetres?
36. 36.Which of these is caused by magnetic force? (a) a compass needle turns (b) shoes grip the floor (c) squeezing a lemon (d) a river flows downhill
37. 37.🔍 Which is the odd one out? (a) a round doorknob (b) a steering wheel (c) a playground slide (d) a well winch handle
38. 38.True or false: a water tap handle is a screw. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) a seashell (b) a mobile phone (c) a satellite (d) a bicycle
40. 40.🪝 Fixed or movable pulley: which one needs effort = load? (a) a fixed pulley (b) a movable pulley

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