Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 517 · 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.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.♻️ A family used to throw away 9 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 5 weeks?
3. 3.🤝 Is it good or poor teamwork to ignore the team plan? (a) good teamwork (b) poor teamwork
4. 4.🧱 Which material is best for a raincoat? (a) paper (b) cardboard (c) cotton wool (d) plastic-coated cloth
5. 5.True or false: pressing a doorbell is a pull. (a) False (b) True
6. 6.🧪 Three prototype bridges were tested with the same method. Design A held 240 g, design B held 290 g and design C held 190 g. Which design was the strongest? (a) design A (b) design C (c) design B
7. 7.🧑‍🔧 Which kind of engineer plans a dam? (a) computer (b) mechanical (c) chemical (d) civil
8. 8.True or false: to run while holding tools is safe. (a) False (b) True
9. 9.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) using flexible joints (d) adding cross bracing
10. 10.True or false: to do all the work alone is good teamwork. (a) False (b) True
11. 11.🛞 More or less friction: chalk on a gym bar? (a) more friction (b) less friction
12. 12.True or false: a seesaw is a class 2 lever (load in the middle). (a) False (b) True
13. 13.True or false: a chemical engineer designs a paint factory. (a) False (b) True
14. 14.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a criterion (b) a constraint
15. 15.📐 On a plan, 1 cm stands for 2 m. A wall is 20 cm long on the plan. How long is the real wall, in metres?
16. 16.🏋️ A force of 200 N did 600 J of work. How many metres did the object move?
17. 17.⚖️ A seesaw balances. Asha (200 N) sits 1 m from the pivot on one side; Zoya (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
18. 18.Which of these is caused by magnetic force? (a) a compass needle turns (b) brakes stop a bicycle (c) pedalling a cycle (d) a thrown ball comes down
19. 19.🏋️ Work is done when a force moves something … (a) very slowly (b) only upwards (c) through a distance (d) without moving it
20. 20.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 60 cm and the load at 30 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
21. 21.True or false: an electrical engineer designs factory machines. (a) False (b) True
22. 22.📋 Your team’s budget is ₹41. You must buy one roll of tape for ₹15. Straws cost ₹1 each. What is the greatest number of straws you can buy?
23. 23.📋 Your team’s budget is ₹16. You must buy one roll of tape for ₹5. Straws cost ₹2 each. What is the greatest number of straws you can buy?
24. 24.🛞 Friction acts … (a) only on ice (b) against the motion (c) with the motion (d) only upwards
25. 25.🏋️ Pushing a crate 5 m took 150 J of work. What force was used, in newtons?
26. 26.🧑‍🔧 Which kind of engineer builds a website? (a) electrical (b) aerospace (c) computer (d) chemical
27. 27.🤝 Is it good or poor teamwork to give kind feedback? (a) good teamwork (b) poor teamwork
28. 28.🧪 Three prototype bridges were tested with the same method. Design A held 190 g, design B held 240 g and design C held 290 g. Which design was the weakest? (a) design C (b) design B (c) design A
29. 29.🔍 Which is the odd one out? (a) a box pushed on carpet (b) skating on ice (c) chalk on a gym bar (d) sand on a slippery path
30. 30.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
31. 31.♻️ Is coal a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
32. 32.🛠️ Is a volcano made by engineers or found in nature? (a) found in nature (b) made by engineers
33. 33.🧱 Which property matters most for a boat hull? (a) waterproof (b) electrical conductor (c) heat insulator (d) flexible
34. 34.🧪 Is it good or poor testing to change only one thing? (a) poor testing (b) good testing
35. 35.🧪 Is it good or poor testing to skip writing results? (a) good testing (b) poor testing
36. 36.🧪 Why do engineers make prototypes? (a) to avoid testing (b) to test ideas cheaply (c) to sell them at once (d) to decorate a room
37. 37.🧪 Three prototype bridges were tested with the same method. Design A held 360 g, design B held 310 g and design C held 260 g. Which design was the weakest? (a) design A (b) design C (c) design B
38. 38.True or false: a hair band needs a flexible material. (a) False (b) True
39. 39.⚙️ Which simple machine is a crowbar? (a) inclined plane (b) wedge (c) lever (d) wheel and axle
40. 40.⚖️ A seesaw balances. Zoya (440 N) sits ? m from the pivot on one side; Meena (440 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?

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