Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 810 · 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: to measure the same way is good testing. (a) True (b) False
2. 2.📋 Your team’s budget is ₹50. You must buy one roll of tape for ₹5. Straws cost ₹3 each. What is the greatest number of straws you can buy?
3. 3.🌉 Which bridge type: “cables tied down at ends”? (a) suspension bridge (b) arch bridge (c) beam bridge
4. 4.🧑‍🔧 Which kind of engineer plans a dam? (a) mechanical (b) electrical (c) civil (d) chemical
5. 5.True or false: a biomedical engineer designs knee implants. (a) True (b) False
6. 6.⚖️ Which class of lever is a beam balance? (a) class 2 (b) class 1 (c) class 3
7. 7.🔢 To build and test a straw bridge, which is the LAST step? (a) choose and draw one (b) read the challenge rules (c) sketch three ideas (d) strengthen the weak part
8. 8.⚖️ Turning effect = force × … (a) time taken (b) distance from fulcrum (c) colour of bar (d) mass of fulcrum
9. 9.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) stacking loose bricks (d) using a heavy roof
10. 10.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 7 N, sandpaper 10 N, ice 4 N, a wooden plank 5 N. Which surface gave the least friction? (a) a wooden plank (b) ice (c) sandpaper (d) a carpet
11. 11.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 4 N, a wooden plank 5 N, a carpet 9 N, sandpaper 13 N. Which surface gave the most friction? (a) a wooden plank (b) a carpet (c) a glass sheet (d) sandpaper
12. 12.Which of these uses triangles? (a) a slab over a canal (b) a truss bridge side (c) a planetarium roof (d) a plank over a drain
13. 13.⚖️ A seesaw balances. Asha (? N) sits 3 m from the pivot on one side; Meena (360 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
14. 14.🪢 A beam rests on two supports and is pressed down in the middle. Its bottom edge is … (a) twisted (b) not affected (c) stretched (tension) (d) squeezed (compression)
15. 15.⚖️ A lever bar balances. The load is 450 N at 10 cm from the fulcrum. The effort is 90 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
16. 16.🌉 What holds up a long beam bridge in the middle? (a) nothing (b) piers (c) balloons (d) cables only
17. 17.⚖️ A lever bar balances. The load is 210 N at 50 cm from the fulcrum. The effort is 150 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
18. 18.📋 Your team’s budget is ₹49. You must buy one roll of tape for ₹5. Straws cost ₹4 each. What is the greatest number of straws you can buy?
19. 19.True or false: a seesaw is a class 1 lever (fulcrum in the middle). (a) True (b) False
20. 20.🪝 A pulley system lifts a 720 N load with an effort of 240 N. What is its mechanical advantage (MA)?
21. 21.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
22. 22.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) electrical (c) aerospace (d) biomedical
23. 23.📐 A beam is 280 cm long. How long is it in metres? =
24. 24.🤝 In a design team, who shares out the jobs? (a) recorder (b) builder (c) team leader (d) materials manager
25. 25.🤝 How do engineers share a design with others? (a) only talking fast (b) clear labelled sketches (c) no drawings at all (d) secret notes
26. 26.True or false: to use the same load is good testing. (a) False (b) True
27. 27.🔺 One side of a straw bridge is a row of 15 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
28. 28.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 10 (c) 100 (d) 1000
29. 29.🪢 Tension or compression: a brick at a wall base? (a) compression (b) tension
30. 30.📐 On a plan, 1 cm stands for 10 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
31. 31.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 0 cm and the load at 20 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
32. 32.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) nothing (c) the load (d) the effort
33. 33.⚖️ Which class of lever is a pair of pliers? (a) class 1 (b) class 3 (c) class 2
34. 34.⚖️ In a class 2 lever, what is in the middle? (a) the axle (b) the effort (c) the load (d) the fulcrum
35. 35.🔄 In which step do engineers draw a labelled diagram? (a) Improve (b) Plan (c) Ask (d) Test
36. 36.🪝 A winch has a wheel of radius 24 cm and an axle of radius 3 cm. What effort on the wheel lifts a 240 N bucket on the axle, in newtons? (ideal)
37. 37.♻️ A sustainable design … (a) lasts one day (b) protects the future (c) uses the most plastic (d) wastes water
38. 38.Which of these happens in the Plan step? (a) measure its performance (b) find the limits (c) make it better, retest (d) list the materials
39. 39.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: sandpaper 8 N, a glass sheet 2 N, a wooden plank 3 N, a carpet 7 N. Which surface gave the most friction? (a) a carpet (b) a glass sheet (c) sandpaper (d) a wooden plank
40. 40.🔍 Which is the odd one out? (a) a tow rope on a car (b) a crane lifting cable (c) a stone in an arch (d) a hanging lamp chain

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