Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 252 · 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.🧪 The first prototype held 250 g. After the team improved it, the new prototype held 290 g. How many more grams did it hold?
2. 2.True or false: a crane arm uses triangles. (a) True (b) False
3. 3.⚖️ A seesaw balances. Zoya (220 N) sits 2 m from the pivot on one side; Meena (220 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
4. 4.⚖️ To lift a heavy rock with a crowbar more easily, push … (a) on the fulcrum (b) near the fulcrum (c) on the rock (d) far from the fulcrum
5. 5.🔄 Which design-process step is it to dream up possible fixes? (a) Plan (b) Imagine (c) Test (d) Ask
6. 6.📋 Your team’s budget is ₹102. You must buy one roll of tape for ₹5. Straws cost ₹5 each. What is the greatest number of straws you can buy?
7. 7.⚙️ A screw is really … (a) a ramp wrapped round (b) a kind of wheel (c) a bent lever (d) a tiny pulley
8. 8.♻️ Is flowing river water a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
9. 9.True or false: sand on a slippery path gives more friction. (a) True (b) False
10. 10.🔧 Which tool would you use to measure an angle? (a) a protractor (b) a screwdriver (c) a saw (d) a spirit level
11. 11.📋 For a model bridge challenge, is “hold up 500 g” a constraint or a criterion? (a) a criterion (b) a constraint
12. 12.🤝 Is it good or poor teamwork to laugh at ideas? (a) good teamwork (b) poor teamwork
13. 13.Which job does an electrical engineer do? (a) refines crude oil (b) designs bicycle gears (c) designs factory machines (d) plans a power grid
14. 14.⚖️ A lever balances when … (a) the bar is short (b) the fulcrum moves (c) turning effects match (d) both weights are equal
15. 15.⚖️ A seesaw balances. Meena (? N) sits 1 m from the pivot on one side; Arjun (140 N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
16. 16.True or false: a biomedical engineer designs hearing aids. (a) True (b) False
17. 17.🏋️ A force of 150 N pushes a cart 7 m along the floor. How much work is done, in joules?
18. 18.True or false: a telephone helps people cross a wide river. (a) True (b) False
19. 19.⚖️ A seesaw balances. Kabir (390 N) sits 1 m from the pivot on one side; Ravi (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
20. 20.♻️ A sustainable design … (a) protects the future (b) lasts one day (c) wastes water (d) uses the most plastic
21. 21.⚖️ A seesaw balances. Zoya (? N) sits 1 m from the pivot on one side; Kabir (140 N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
22. 22.🔍 Which is the odd one out? (a) a grippy rubber sole (b) a rough doormat (c) skating on ice (d) a tyre with deep treads
23. 23.🏋️ A machine lifts a load of 300 N when you push with 50 N. What is its mechanical advantage (MA)?
24. 24.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
25. 25.🤝 Is it good or poor teamwork to agree before changing? (a) good teamwork (b) poor teamwork
26. 26.🧱 Which material is best for a raincoat? (a) cotton wool (b) plastic-coated cloth (c) paper (d) cardboard
27. 27.📐 On a plan, 1 cm stands for 20 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
28. 28.True or false: a stone in an arch is in tension (pulled). (a) False (b) True
29. 29.Which of these is made by engineers? (a) a coral reef (b) a river (c) a water filter (d) a rainbow
30. 30.⚖️ A seesaw balances. Zoya (? N) sits 4 m from the pivot on one side; Kabir (480 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
31. 31.🦺 What protects your eyes when sawing or drilling? (a) nothing (b) sunglasses (c) safety goggles (d) a cap
32. 32.🪝 A bucket weighing 60 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
33. 33.True or false: to grip and bend wire, use a tape measure. (a) False (b) True
34. 34.🧪 Is it good or poor testing to hide a failed test? (a) good testing (b) poor testing
35. 35.📐 On a plan, 1 cm stands for 10 m. A wall is 17 cm long on the plan. How long is the real wall, in metres?
36. 36.🔍 Which is the odd one out? (a) clamp wood before sawing (b) wear safety goggles (c) run while holding tools (d) tie back long hair
37. 37.Which of these is a suspension bridge? (a) a flat deck on piers (b) tall towers hold cables (c) a log across a stream (d) pushes out on its ends
38. 38.🔺 Which strong shape does a bicycle frame use? (a) arch (b) beam (c) triangle (d) dome
39. 39.🤝 A team of 2 shares 10 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
40. 40.📋 For a model bridge challenge, is “float for 1 minute” a constraint or a criterion? (a) a constraint (b) a criterion

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