Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 830 · 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.True or false: an old stone bridge uses an arch. (a) False (b) True
2. 2.🛞 More or less friction: a tyre with deep treads? (a) more friction (b) less friction
3. 3.🏋️ A machine lifts a load of 500 N when you push with 100 N. What is its mechanical advantage (MA)?
4. 4.True or false: coal is a renewable energy source. (a) True (b) False
5. 5.⚖️ A lever bar balances. The load is 180 N at 50 cm from the fulcrum. The effort is ? N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
6. 6.🏋️ Can a simple machine reduce the work done? (a) no, work stays the same (b) yes, by half (c) yes, always (d) only on Mondays
7. 7.True or false: a movable pulley hangs on the rope loop. (a) True (b) False
8. 8.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
9. 9.Which of these is recycle (make new things)? (a) give old books away (b) reuse gift paper (c) print on both sides (d) pulp old paper
10. 10.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 90 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
11. 11.🧑‍🔧 Which kind of engineer designs factory machines? (a) civil (b) aerospace (c) mechanical (d) electrical
12. 12.True or false: a chemical engineer designs artificial limbs. (a) True (b) False
13. 13.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
14. 14.🪢 Tension or compression: a table leg? (a) tension (b) compression
15. 15.🧑‍🔧 Which kind of engineer designs knee implants? (a) electrical (b) civil (c) chemical (d) biomedical
16. 16.🔺 Why can an arch carry heavy loads? (a) it works in compression (b) it bends easily (c) it is very light (d) it is hollow
17. 17.🦺 In the workshop, is it safe to carry scissors closed? (a) safe (b) not safe
18. 18.🛞 More or less friction: skating on ice? (a) less friction (b) more friction
19. 19.True or false: to measure an angle, use a protractor. (a) False (b) True
20. 20.Which of these needs a waterproof material? (a) a yoga mat (b) an umbrella cover (c) a cooking pot handle (d) a skipping rope
21. 21.⚖️ A seesaw balances. Ravi (320 N) sits 1 m from the pivot on one side; Kabir (160 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
22. 22.🏋️ A force of 210 N did 1260 J of work. How many metres did the object move?
23. 23.📐 On a plan, 1 cm stands for 2 m. A real bridge is 28 m long. How long is it on the plan, in centimetres?
24. 24.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: a biomedical engineer designs artificial limbs. (a) False (b) True
26. 26.🧱 Which property matters most for a tea flask lining? (a) flexible (b) waterproof (c) transparent (d) heat insulator
27. 27.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) square (c) hexagon (d) triangle
28. 28.🔍 Which is the odd one out? (a) a smooth steel slide (b) a box pushed on carpet (c) a wet tiled floor (d) skating on ice
29. 29.Which of these is found in nature? (a) a mobile phone (b) a lift (c) a bridge (d) a river
30. 30.♻️ A school bench is made from 100 recycled plastic bottles. How many benches can be made from 600 bottles?
31. 31.🤝 A team of 2 shares 8 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
32. 32.📋 Your team’s budget is ₹156. You must buy one roll of tape for ₹5. Straws cost ₹5 each. What is the greatest number of straws you can buy?
33. 33.📋 Criteria are … (a) the team names (b) the limits on money (c) the tools you use (d) goals a design must meet
34. 34.🦺 How should you carry scissors? (a) points up, open (b) by the blades (c) points down, closed (d) while running
35. 35.🔺 How do engineers stop a square frame from wobbling? (a) make it bigger (b) paint it (c) take off a side (d) add a diagonal brace
36. 36.True or false: a biomedical engineer designs bicycle gears. (a) True (b) False
37. 37.🧑‍🔧 Which kind of engineer designs a paint factory? (a) aerospace (b) computer (c) chemical (d) civil
38. 38.True or false: a rough doormat gives less friction. (a) True (b) False
39. 39.♻️ A school bench is made from 450 recycled plastic bottles. How many benches can be made from 3150 bottles?
40. 40.⚖️ What is the pivot point of a lever called? (a) the load (b) the effort (c) the fulcrum (d) the axle

Free engineering lessons, practice and worksheets at talentjr.in/engineering-for-kids