Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 129 · 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.🏋️ In which unit is work measured? (a) metre (m) (b) watt hour (c) newton (N) (d) joule (J)
2. 2.🪝 Fixed or movable pulley: which one stays in one place? (a) a fixed pulley (b) a movable pulley
3. 3.📋 Criteria are … (a) the limits on money (b) the tools you use (c) the team names (d) goals a design must meet
4. 4.💪 Which force is at work: a thrown ball comes down? (a) muscular force (b) magnetic force (c) friction (d) gravity
5. 5.Which of these happens in the Plan step? (a) ask who will use it (b) make a prototype (c) brainstorm many ideas (d) list the materials
6. 6.⚖️ 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 2 (b) class 3 (c) class 1
7. 7.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) hexagon (c) triangle (d) rectangle
8. 8.Which job does a biomedical engineer do? (a) designs power lines (b) designs hearing aids (c) plans a space mission (d) designs satellites
9. 9.🌉 In a stone arch bridge, the stones are in … (a) tension (b) compression (c) friction (d) no force
10. 10.📋 Your team’s budget is ₹25. You must buy one roll of tape for ₹10. Straws cost ₹2 each. What is the greatest number of straws you can buy?
11. 11.🔍 Which is the odd one out? (a) powder on a carrom board (b) a tyre with deep treads (c) a wet tiled floor (d) a wheel on ball bearings
12. 12.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
13. 13.🏋️ A force of 320 N pushes a cart 3 m along the floor. How much work is done, in joules?
14. 14.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) no, work stays the same (c) only on Mondays (d) yes, by half
15. 15.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) squeezed (compression) (b) stretched (tension) (c) twisted (d) not affected
16. 16.🤝 A team of 3 shares 9 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
17. 17.True or false: a civil engineer runs a fertiliser plant. (a) False (b) True
18. 18.🤝 In a design team, who puts the model together? (a) builder (b) recorder (c) tester (d) materials manager
19. 19.True or false: a movable pulley makes you pull 2× rope. (a) True (b) False
20. 20.True or false: to ignore the team plan is poor teamwork. (a) False (b) True
21. 21.♻️ Reduce, reuse or recycle: give old books away? (a) reduce (b) recycle (c) reuse
22. 22.🌉 Which bridge type: “a curve under the deck”? (a) suspension bridge (b) beam bridge (c) arch bridge
23. 23.True or false: “hold up 500 g” is a constraint (a limit). (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) spend at most ₹100 (b) hold up 500 g (c) float for 1 minute (d) keep ice for 1 hour
25. 25.🛠️ People need to go through a mountain. Which invention helps? (a) a train (b) a lift (c) a tunnel (d) a water filter
26. 26.💪 Which force is at work: pedalling a cycle? (a) magnetic force (b) friction (c) gravity (d) muscular force
27. 27.🔢 To follow the engineering design process, which is the LAST step? (a) Improve (b) Test (c) Plan (d) Ask
28. 28.True or false: a mechanical engineer designs factory machines. (a) True (b) False
29. 29.True or false: a shelf on two brackets uses a dome. (a) True (b) False
30. 30.🤝 Is it good or poor teamwork to blame others for faults? (a) good teamwork (b) poor teamwork
31. 31.♻️ Reduce, reuse or recycle: use a jar as a pen stand? (a) reuse (b) recycle (c) reduce
32. 32.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
33. 33.True or false: sunlight is a non-renewable energy source. (a) False (b) True
34. 34.🏋️ A force of 320 N did 320 J of work. How many metres did the object move?
35. 35.True or false: to fix the weak part is the Improve step. (a) False (b) True
36. 36.🪝 A pulley system has 3 rope sections holding up the load. To lift the load by 1 m, how many metres of rope must you pull?
37. 37.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) a rough doormat (b) a grippy rubber sole (c) chalk on a gym bar (d) skating on ice
39. 39.💪 Is a tug of war a push or a pull? (a) a pull (b) a push
40. 40.Which job is a spirit level for? (a) check a shelf is level (b) measure an angle (c) cut a wooden plank (d) measure a long length

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