Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 887 · 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.📐 How many millimetres are in 1 centimetre? (a) 100 (b) 10 (c) 1000 (d) 5
2. 2.Which of these needs a transparent material? (a) a plug pin (b) a spectacle lens (c) a raincoat (d) a hair band
3. 3.Which of these is in tension (pulled)? (a) a table leg (b) a stretched rubber band (c) a temple column (d) a bridge pier
4. 4.True or false: a brick at a wall base is in compression (pushed). (a) True (b) False
5. 5.True or false: a tunnel helps people keep food fresh longer. (a) True (b) False
6. 6.🧪 The first prototype held 150 g. After the team improved it, the new prototype held 220 g. How many more grams did it hold?
7. 7.🔺 One side of a straw bridge is a row of 2 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
8. 8.⚖️ A seesaw balances. Zoya (140 N) sits 3 m from the pivot on one side; Asha (? N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
9. 9.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) wobbly (b) rigid
10. 10.True or false: a mobile phone is made by engineers. (a) False (b) True
11. 11.Which of these is an arch bridge? (a) a rope bridge in hills (b) the simplest bridge (c) pushes out on its ends (d) cables tied down at ends
12. 12.⚖️ In a class 3 lever, what is in the middle? (a) the effort (b) the pulley (c) the load (d) the fulcrum
13. 13.🧱 Which property matters most for a car windscreen? (a) waterproof (b) transparent (c) electrical conductor (d) heat insulator
14. 14.Which of these is found in nature? (a) a bridge (b) a ceiling fan (c) a volcano (d) a dam
15. 15.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
16. 16.📐 On a plan, 1 cm stands for 2 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
17. 17.🏋️ A machine lifts a load of 400 N when you push with 200 N. What is its mechanical advantage (MA)?
18. 18.🏋️ A force of 50 N did 50 J of work. How many metres did the object move?
19. 19.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🔍 Which is the odd one out? (a) a temple column (b) a brick at a wall base (c) a hanging lamp chain (d) a squeezed spring
21. 21.🔄 Which design-process step is it to brainstorm many ideas? (a) Test (b) Ask (c) Plan (d) Imagine
22. 22.🧱 Which property matters most for the core of a wire? (a) electrical conductor (b) transparent (c) flexible (d) heat insulator
23. 23.🔍 Which is the odd one out? (a) steel (b) brass (c) copper (d) glass
24. 24.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) reuse (b) reduce (c) recycle
25. 25.🤝 A team plans for 60 minutes, builds for 35 minutes and then tests for 30 minutes, one after another. How many minutes is that in all?
26. 26.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
27. 27.True or false: a fixed pulley is on a flagpole top. (a) True (b) False
28. 28.♻️ A school bench is made from 400 recycled plastic bottles. How many benches can be made from 800 bottles?
29. 29.True or false: wind is a non-renewable energy source. (a) True (b) False
30. 30.📋 Your team’s budget is ₹47. You must buy one roll of tape for ₹10. Straws cost ₹2 each. What is the greatest number of straws you can buy?
31. 31.True or false: a microscope helps people see very tiny things. (a) True (b) False
32. 32.True or false: to grip and bend wire, use pliers. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a water filter (b) a cloud (c) a mountain (d) a waterfall
34. 34.🔍 Which is the odd one out? (a) spend at most ₹100 (b) stand in a fan breeze (c) hold up 500 g (d) float for 1 minute
35. 35.True or false: a chemical engineer designs a gearbox. (a) True (b) False
36. 36.📐 A beam is 280 cm long. How long is it in metres? =
37. 37.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
38. 38.True or false: to make it better, retest is the Improve step. (a) True (b) False
39. 39.Which need does a solar panel meet? (a) make water safe to drink (b) go through a mountain (c) keep food fresh longer (d) make power from sunlight
40. 40.🧪 The first prototype held 140 g. After the team improved it, the new prototype held 180 g. How many more grams did it hold?

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