Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 615 · 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 class of lever is a pair of tweezers? (a) class 2 (b) class 3 (c) class 1
2. 2.🛞 Friction acts … (a) with the motion (b) only on ice (c) only upwards (d) against the motion
3. 3.📋 A design meets every criterion but costs more than the budget. Is it acceptable? (a) yes, it works (b) no, it breaks a limit (c) only if it is red (d) yes, always
4. 4.🏋️ Pushing a crate 2 m took 280 J of work. What force was used, in newtons?
5. 5.🤝 In a design team, who writes down results? (a) builder (b) recorder (c) team leader (d) materials manager
6. 6.True or false: to help a stuck teammate is poor teamwork. (a) False (b) True
7. 7.📋 Constraint: the tower must be no taller than 100 cm. The team’s tower is 100 cm tall. Is it within the constraint? (a) Yes (b) No
8. 8.True or false: a tunnel helps people make water safe to drink. (a) True (b) False
9. 9.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
10. 10.🤝 Is it good or poor teamwork to laugh at ideas? (a) poor teamwork (b) good teamwork
11. 11.True or false: a movable pulley halves the effort. (a) False (b) True
12. 12.💪 Which force is at work: rubbing hands warms them? (a) gravity (b) friction (c) magnetic force (d) muscular force
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a fridge (d) a telescope
14. 14.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load × effort (c) load + effort (d) load ÷ effort
15. 15.🏋️ A machine lifts a load of 150 N when you push with 50 N. What is its mechanical advantage (MA)?
16. 16.🧑‍🔧 Which kind of engineer designs factory machines? (a) computer (b) mechanical (c) chemical (d) aerospace
17. 17.🛠️ People need to cross a wide river. Which invention helps? (a) a bridge (b) a train (c) a microscope (d) a dam
18. 18.🧪 What is a prototype? (a) a sales poster (b) the final product (c) a broken part (d) an early test model
19. 19.🔍 Which is the odd one out? (a) tie back long hair (b) wear safety goggles (c) use a cracked tool (d) clamp wood before sawing
20. 20.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 400 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
21. 21.True or false: to define the problem is the Ask step. (a) False (b) True
22. 22.🧱 Which material is best for a window pane? (a) wood (b) glass (c) steel (d) brick
23. 23.Which of these needs a heat insulator? (a) a tea flask lining (b) a car windscreen (c) a boat hull (d) a switch contact
24. 24.⚖️ Going along a lever from one end to the other, the order is: effort, fulcrum, load. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
25. 25.📋 Your team’s budget is ₹37. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
26. 26.🛠️ People need to carry many people far. Which invention helps? (a) a tunnel (b) a train (c) a water filter (d) a dam
27. 27.⚖️ A lever bar balances. The load is 350 N at 10 cm from the fulcrum. The effort is 70 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
28. 28.🧱 Which property matters most for a car seat belt? (a) heat insulator (b) electrical conductor (c) flexible (d) transparent
29. 29.True or false: a mechanical engineer plans a power grid. (a) True (b) False
30. 30.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🪝 A well winch has a handle (wheel) of radius 8 cm turning an axle of radius 1 cm. What is its mechanical advantage (MA)?
33. 33.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 400 N at 50 cm from the fulcrum on the other side. What is the missing force in newtons?
34. 34.True or false: a plug pin needs a transparent material. (a) True (b) False
35. 35.🧱 Which property matters most for a plug pin? (a) heat insulator (b) transparent (c) electrical conductor (d) flexible
36. 36.🤝 In a design team, who keeps the design notes? (a) tester (b) materials manager (c) recorder (d) team leader
37. 37.🔢 To follow the engineering design process, which comes first: “Plan” or “Test”? (a) Test (b) Plan
38. 38.Which job does a mechanical engineer do? (a) designs artificial limbs (b) designs a metro tunnel (c) keeps data safe online (d) designs car engines
39. 39.🧑‍🔧 Which branch of engineering designs machines with moving parts? (a) chemical (b) biomedical (c) civil (d) mechanical
40. 40.🤝 In a design team, who puts the model together? (a) materials manager (b) tester (c) builder (d) recorder

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