Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 205 · 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.🔢 To follow the engineering design process, which is the FIRST step? (a) Imagine (b) Ask (c) Improve (d) Create
2. 2.🪝 A bucket weighing 320 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
3. 3.♻️ A school bench is made from 500 recycled plastic bottles. How many benches can be made from 3500 bottles?
4. 4.🪝 A well winch has a handle (wheel) of radius 12 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?
5. 5.True or false: a fixed pulley needs effort = load. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a swing chain (b) a tall bridge tower (c) a table leg (d) a stone in an arch
7. 7.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) using a heavy roof (d) raising heavy tanks high
8. 8.🔄 Which design-process step is it to try it out? (a) Plan (b) Ask (c) Improve (d) Test
9. 9.⚙️ Which simple machine is a crowbar? (a) lever (b) inclined plane (c) pulley (d) screw
10. 10.📋 Your team’s budget is ₹54. You must buy one roll of tape for ₹15. Straws cost ₹2 each. What is the greatest number of straws you can buy?
11. 11.🔢 To follow the engineering design process, which comes first: “Test” or “Improve”? (a) Improve (b) Test
12. 12.⚖️ A seesaw balances. Kabir (450 N) sits 4 m from the pivot on one side; Meena (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
13. 13.🤝 Is it good or poor teamwork to listen to every idea? (a) good teamwork (b) poor teamwork
14. 14.Which of these uses triangles? (a) a truss bridge side (b) a fort gateway (c) a plank over a drain (d) a shelf on two brackets
15. 15.🔍 Which is the odd one out? (a) record every result (b) repeat each test (c) measure the same way (d) hide a failed test
16. 16.💪 In which unit do we measure force? (a) litre (L) (b) second (s) (c) metre (m) (d) newton (N)
17. 17.📐 How many centimetres are in 1 metre? (a) 100 (b) 60 (c) 10 (d) 1000
18. 18.Which job is a hammer for? (a) make a hole in wood (b) tighten a nut (c) smooth a rough edge (d) drive in a nail
19. 19.Which of these is in tension (pulled)? (a) a crane lifting cable (b) a bridge pier (c) a table leg (d) a squeezed spring
20. 20.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reuse (b) recycle (c) reduce
21. 21.🔍 Which is the odd one out? (a) repeat each test (b) hide a failed test (c) use a new load each time (d) test it only once
22. 22.🛞 Is friction helpful or a problem here: shoe soles wearing out? (a) a problem (b) helpful
23. 23.🔍 Which is the odd one out? (a) a smooth steel slide (b) oil on a squeaky hinge (c) skating on ice (d) chalk on a gym bar
24. 24.True or false: a smooth steel slide gives more friction. (a) False (b) True
25. 25.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
26. 26.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
27. 27.True or false: “tall towers hold cables” is a suspension bridge. (a) False (b) True
28. 28.True or false: a computer engineer designs a gearbox. (a) False (b) True
29. 29.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) aerospace (b) electrical (c) civil (d) biomedical
30. 30.Which of these is caused by muscular force? (a) an apple falls down (b) lifting a school bag (c) a thrown ball comes down (d) a river flows downhill
31. 31.Which of these happens in the Create step? (a) make it better, retest (b) find the limits (c) redesign after testing (d) make a prototype
32. 32.True or false: a computer engineer designs school networks. (a) True (b) False
33. 33.📐 On a plan, 1 cm stands for 2 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 220 g, design B held 170 g and design C held 120 g. Which design was the weakest? (a) design B (b) design A (c) design C
35. 35.True or false: “a flat deck on piers” is a beam bridge. (a) True (b) False
36. 36.⚙️ Which simple machine is a door stopper? (a) inclined plane (b) wedge (c) screw (d) lever
37. 37.🪢 A concrete slab weighing 6400 N rests evenly on 4 identical pillars. What compression force does each pillar carry, in newtons?
38. 38.⚖️ A seesaw balances. Meena (? N) sits 1 m from the pivot on one side; Arjun (190 N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
39. 39.🧱 Which material is best for the bars inside concrete? (a) steel (b) plastic (c) glass (d) rubber
40. 40.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?

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