Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 639 · 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 of these is a wedge? (a) a bottle cap (b) a crane hook block (c) a wood screw (d) a chisel
2. 2.True or false: a civil engineer builds rockets. (a) False (b) True
3. 3.True or false: a chemical engineer runs a fertiliser plant. (a) False (b) True
4. 4.🏋️ Mechanical advantage (MA) = … (a) load + effort (b) load × effort (c) load ÷ effort (d) effort ÷ load
5. 5.📐 On a plan, 1 cm stands for 20 m. A real bridge is 200 m long. How long is it on the plan, in centimetres?
6. 6.🔍 Which is the odd one out? (a) oil on a squeaky hinge (b) sand on a slippery path (c) chalk on a gym bar (d) a tyre with deep treads
7. 7.⚖️ Turning effect = force × … (a) colour of bar (b) mass of fulcrum (c) time taken (d) distance from fulcrum
8. 8.⚖️ A lever bar balances. The load is ? N at 10 cm from the fulcrum. The effort is 80 N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
9. 9.🔍 Which is the odd one out? (a) stand in a fan breeze (b) finish in 40 minutes (c) float for 1 minute (d) hold up 500 g
10. 10.🏋️ Can a simple machine reduce the work done? (a) yes, by half (b) yes, always (c) only on Mondays (d) no, work stays the same
11. 11.🛠️ People need to store water for summer. Which invention helps? (a) a dam (b) a water filter (c) a train (d) a solar panel
12. 12.🤝 A team plans for 40 minutes, builds for 55 minutes and then tests for 15 minutes, one after another. How many minutes is that in all?
13. 13.Which of these needs a transparent material? (a) a switch contact (b) a tea flask lining (c) a window pane (d) a yoga mat
14. 14.True or false: a temple column is in compression (pushed). (a) False (b) True
15. 15.📋 Your team’s budget is ₹30. You must buy one roll of tape for ₹5. Straws cost ₹3 each. What is the greatest number of straws you can buy?
16. 16.⚖️ A lever bar balances. The load is 140 N at 30 cm from the fulcrum. The effort is ? N at 20 cm from the fulcrum on the other side. What is the missing force in newtons?
17. 17.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
18. 18.True or false: a switch contact needs an electrical conductor. (a) True (b) False
19. 19.True or false: “the simplest bridge” is a suspension bridge. (a) False (b) True
20. 20.True or false: an aerospace engineer designs satellites. (a) False (b) True
21. 21.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🔍 Which is the odd one out? (a) copper (b) plastic (c) clay pottery (d) cotton cloth
23. 23.🛠️ People need to reach a top floor fast. Which invention helps? (a) a lift (b) a train (c) a telephone (d) a bridge
24. 24.Which of these is a wedge? (a) a well-bucket rope wheel (b) a crane hook block (c) a wheelchair ramp (d) the tip of a nail
25. 25.📐 On a plan, 1 cm stands for 10 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
26. 26.Which of these is an inclined plane? (a) a water tap handle (b) the tip of a nail (c) a jar lid (d) a playground slide
27. 27.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 2 m, how many metres of rope must you pull?
28. 28.True or false: an oven glove needs an electrical conductor. (a) False (b) True
29. 29.🌉 A beam bridge 315 m long is split by piers into 9 equal spans. How long is each span, in metres?
30. 30.True or false: “finish in 40 minutes” is a criterion (a goal). (a) True (b) False
31. 31.♻️ A sustainable design … (a) uses the most plastic (b) lasts one day (c) protects the future (d) wastes water
32. 32.⚙️ Which simple machine is a nut and bolt? (a) wedge (b) wheel and axle (c) pulley (d) screw
33. 33.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reduce (b) reuse (c) recycle
34. 34.What does the tester do? (a) keeps the design notes (b) tracks what is used up (c) shares out the jobs (d) checks the goals are met
35. 35.🔍 Which is the odd one out? (a) a stretched rubber band (b) a tow rope on a car (c) a tent guy rope (d) a pillar under a roof
36. 36.🌉 Which bridge type: “a rope bridge in hills”? (a) arch bridge (b) beam bridge (c) suspension bridge
37. 37.True or false: “a curve under the deck” is an arch bridge. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) carry 10 coins (b) stand in a fan breeze (c) fit on a school desk (d) keep ice for 1 hour
39. 39.🔍 Which is the odd one out? (a) use the same load (b) repeat each test (c) change only one thing (d) change lots at once
40. 40.🪝 A load of 720 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)

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