Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 497 · 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.⚖️ A lever bar balances. The load is 480 N at 10 cm from the fulcrum. The effort is 80 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
2. 2.🔢 To follow the engineering design process, what comes right after “Ask”? (a) Create (b) Plan (c) Improve (d) Imagine
3. 3.⚖️ A lever bar balances. The load is 250 N at 40 cm from the fulcrum. The effort is 200 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
4. 4.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) fitting rubber base pads (d) making brittle joints
5. 5.Which of these is in tension (pulled)? (a) a tall bridge tower (b) a pillar under a roof (c) a crane lifting cable (d) a temple column
6. 6.🏋️ Pushing a crate 8 m took 1200 J of work. What force was used, in newtons?
7. 7.🌉 Which bridge type: “stones squeezed together”? (a) arch bridge (b) suspension bridge (c) beam bridge
8. 8.🔺 Which shape keeps its shape best when its corners are pinned? (a) square (b) triangle (c) hexagon (d) rectangle
9. 9.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
10. 10.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) near the fulcrum (b) on the rock (c) on the fulcrum (d) far from the fulcrum
11. 11.True or false: to help a stuck teammate is poor teamwork. (a) True (b) False
12. 12.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 7 N, a wooden plank 10 N, a carpet 12 N, ice 3 N. Which surface gave the most friction? (a) ice (b) a wooden plank (c) a glass sheet (d) a carpet
13. 13.🤝 Why do engineers work in teams? (a) to finish nothing (b) to argue more (c) to work alone (d) many skills and ideas
14. 14.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) building tall and narrow (d) making brittle joints
15. 15.💪 Two children push a box to the right, one with 40 N and the other with 55 N. What is the net (total) force on the box, in newtons?
16. 16.⚙️ Which simple machine is a well-bucket rope wheel? (a) wedge (b) pulley (c) screw (d) lever
17. 17.Which of these is a pulley? (a) a knife edge (b) a water tap handle (c) a well-bucket rope wheel (d) a crowbar
18. 18.True or false: “tall towers hold cables” is an arch bridge. (a) False (b) True
19. 19.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) computer (b) chemical (c) biomedical (d) civil
20. 20.🔄 Is the engineering design process done only once? (a) yes, only once (b) only on Sundays (c) only for big jobs (d) no, it repeats
21. 21.⚙️ A wedge is … (a) two ramps back to back (b) a wheel on a rod (c) a bar on a pivot (d) a rope on a wheel
22. 22.Which of these is reduce (use less)? (a) refill a water bottle (b) fix a dripping tap (c) melt cans into new cans (d) turn plastic into tiles
23. 23.⚖️ A lever bar balances. The load is 540 N at 30 cm from the fulcrum. The effort is ? N at 90 cm from the fulcrum on the other side. What is the missing force in newtons?
24. 24.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Improve (b) Imagine (c) Create (d) Test
25. 25.True or false: a chisel is a lever. (a) True (b) False
26. 26.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) civil (b) mechanical (c) chemical (d) biomedical
27. 27.🧪 What is a prototype? (a) the final product (b) a broken part (c) an early test model (d) a sales poster
28. 28.🤝 A team plans for 10 minutes, builds for 35 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
29. 29.True or false: a bridge pier is in compression (pushed). (a) False (b) True
30. 30.Which of these is made by engineers? (a) a water filter (b) a banyan tree (c) a coral reef (d) a rainbow
31. 31.Which need does a bridge meet? (a) make power from sunlight (b) cross a wide river (c) talk to someone far away (d) see very tiny things
32. 32.🧱 Which material is best for a window pane? (a) brick (b) steel (c) wood (d) glass
33. 33.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
34. 34.Which of these is recycle (make new things)? (a) carry a cloth bag (b) refill a water bottle (c) melt glass into new jars (d) reuse gift paper
35. 35.🦺 In the workshop, is it safe to run while holding tools? (a) not safe (b) safe
36. 36.Which of these happens in the Imagine step? (a) check it against goals (b) measure its performance (c) dream up possible fixes (d) follow the plan to build
37. 37.🔍 Which is the odd one out? (a) a flagpole rope wheel (b) a well-bucket rope wheel (c) a steering wheel (d) a window blind cord
38. 38.📐 A beam is 300 cm long. How long is it in metres? =
39. 39.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) stacking loose bricks (d) adding cross bracing
40. 40.Which of these happens in the Test step? (a) follow the plan to build (b) try it out (c) make a prototype (d) brainstorm many ideas

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