Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 332 · 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 is the odd one out? (a) a flagpole rope wheel (b) a window blind cord (c) a well-bucket rope wheel (d) a well winch handle
2. 2.⚙️ Which simple machine is a seesaw? (a) pulley (b) lever (c) wedge (d) screw
3. 3.📐 On a plan, 1 cm stands for 20 m. A real bridge is 340 m long. How long is it on the plan, in centimetres?
4. 4.🏋️ Can a simple machine reduce the work done? (a) yes, always (b) yes, by half (c) only on Mondays (d) no, work stays the same
5. 5.🧪 What is a prototype? (a) an early test model (b) a sales poster (c) the final product (d) a broken part
6. 6.🔍 Which is the odd one out? (a) stand in a fan breeze (b) roll at least 2 metres (c) keep ice for 1 hour (d) finish in 40 minutes
7. 7.🔄 What is the FIRST step of the engineering design process? (a) Improve (b) Create (c) Ask (d) Test
8. 8.True or false: to grip and bend wire, use a saw. (a) True (b) False
9. 9.Which of these uses triangles? (a) a round palace roof (b) a roof truss (c) a lintel over a door (d) a fort gateway
10. 10.📐 On a plan, 1 cm stands for 10 m. A real bridge is 130 m long. How long is it on the plan, in centimetres?
11. 11.True or false: a temple column is in compression (pushed). (a) False (b) True
12. 12.🤝 In a design team, who runs the tests? (a) recorder (b) materials manager (c) team leader (d) tester
13. 13.True or false: “a rope bridge in hills” is a suspension bridge. (a) False (b) True
14. 14.💪 Two children push a box to the right, one with 60 N and the other with 10 N. What is the net (total) force on the box, in newtons?
15. 15.🔍 Which is the odd one out? (a) a table leg (b) a hanging lamp chain (c) a swing chain (d) a tent guy rope
16. 16.🪝 Fixed or movable pulley: which one only changes direction? (a) a movable pulley (b) a fixed pulley
17. 17.🛠️ Is a river made by engineers or found in nature? (a) made by engineers (b) found in nature
18. 18.True or false: a skipping rope needs a transparent material. (a) True (b) False
19. 19.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
20. 20.Which of these uses a beam? (a) an old stone bridge (b) a bicycle frame (c) a slab over a canal (d) a truss bridge side
21. 21.True or false: a crowbar is a class 2 lever (load in the middle). (a) False (b) True
22. 22.💪 Which force is at work: an apple falls down? (a) friction (b) gravity (c) magnetic force (d) muscular force
23. 23.True or false: biogas from waste is a non-renewable energy source. (a) False (b) True
24. 24.True or false: “be under 30 cm tall” is a criterion (a goal). (a) True (b) False
25. 25.🔺 How do engineers stop a square frame from wobbling? (a) add a diagonal brace (b) take off a side (c) paint it (d) make it bigger
26. 26.⚖️ A lever bar balances. The load is 450 N at ? cm from the fulcrum. The effort is 360 N at 50 cm from the fulcrum on the other side. What is the missing distance in centimetres?
27. 27.Which of these needs a heat insulator? (a) a car seat belt (b) an oven glove (c) a skipping rope (d) a yoga mat
28. 28.🪝 A pulley system lifts a 60 N load with an effort of 30 N. What is its mechanical advantage (MA)?
29. 29.True or false: powder on a carrom board gives more friction. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) hold up 500 g (b) roll at least 2 metres (c) float for 1 minute (d) spend at most ₹100
31. 31.🧑‍🔧 Which kind of engineer designs bicycle gears? (a) civil (b) mechanical (c) biomedical (d) computer
32. 32.🦺 In the workshop, is it safe to wear safety goggles? (a) safe (b) not safe
33. 33.🛠️ People need to go through a mountain. Which invention helps? (a) a bridge (b) a lift (c) a tunnel (d) a water filter
34. 34.Which job does a computer engineer do? (a) builds hospital scanners (b) designs a metro tunnel (c) designs hearing aids (d) writes app software
35. 35.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load ÷ effort (c) load × effort (d) load + effort
36. 36.⚖️ A lever bar balances. The load is ? N at 30 cm from the fulcrum. The effort is 60 N at 80 cm from the fulcrum on the other side. What is the missing force in newtons?
37. 37.📐 A beam is 840 cm long. How long is it in metres? =
38. 38.💪 Which force is at work: rain falls to the ground? (a) magnetic force (b) muscular force (c) gravity (d) friction
39. 39.⚖️ A seesaw balances. Meena (400 N) sits ? m from the pivot on one side; Asha (300 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
40. 40.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) chemical (b) mechanical (c) biomedical (d) civil

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