Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 301 · 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.🔺 One side of a straw bridge is a row of 11 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
2. 2.🔍 Which is the odd one out? (a) be under 30 cm tall (b) float for 1 minute (c) stand in a fan breeze (d) hold up 500 g
3. 3.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) build it with straws (c) load it with coins (d) strengthen the weak part
4. 4.🔍 Which is the odd one out? (a) carry 10 coins (b) float for 1 minute (c) use at most 20 straws (d) keep ice for 1 hour
5. 5.True or false: a tow rope on a car is in compression (pushed). (a) True (b) False
6. 6.🤝 A team of 5 shares 15 equal jobs fairly. Each job takes 3 minutes. How many minutes does each person work?
7. 7.⚖️ A lever balances when … (a) the bar is short (b) turning effects match (c) both weights are equal (d) the fulcrum moves
8. 8.🪝 Fixed or movable pulley: which one rises with the load? (a) a fixed pulley (b) a movable pulley
9. 9.Which job does a computer engineer do? (a) plans a space mission (b) builds a website (c) designs a paint factory (d) plans a power grid
10. 10.🛞 Is friction helpful or a problem here: writing with a pencil? (a) helpful (b) a problem
11. 11.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
12. 12.💪 A bag has a mass of 33 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
13. 13.🔍 Which is the odd one out? (a) a crane lifting cable (b) a tent guy rope (c) a temple column (d) a suspension cable
14. 14.🔍 Which is the odd one out? (a) a flagpole rope wheel (b) a crane hook block (c) a well winch handle (d) a window blind cord
15. 15.🛞 How can we reduce friction in a machine? (a) oil the moving parts (b) make parts rough (c) add sand (d) press parts harder
16. 16.🧱 Is aluminium an electrical conductor or an insulator? (a) a conductor (b) an insulator
17. 17.True or false: to repeat each test is good testing. (a) True (b) False
18. 18.True or false: a tyre with deep treads gives more friction. (a) False (b) True
19. 19.🔄 Which design-process step is it to dream up possible fixes? (a) Ask (b) Test (c) Imagine (d) Create
20. 20.📋 Criteria are … (a) the tools you use (b) the team names (c) goals a design must meet (d) the limits on money
21. 21.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 4 N, a glass sheet 5 N, a carpet 7 N, sandpaper 9 N. How many newtons more were needed on sandpaper than on ice?
22. 22.🏋️ A force of 400 N pushes a cart 10 m along the floor. How much work is done, in joules?
23. 23.🔢 To follow the engineering design process, which comes first: “Test” or “Plan”? (a) Test (b) Plan
24. 24.🧪 Three prototype bridges were tested with the same method. Design A held 370 g, design B held 270 g and design C held 320 g. Which design was the weakest? (a) design C (b) design B (c) design A
25. 25.Which job does a civil engineer do? (a) plans a power grid (b) keeps data safe online (c) designs a metro tunnel (d) designs satellites
26. 26.🧪 Why do engineers make prototypes? (a) to test ideas cheaply (b) to avoid testing (c) to sell them at once (d) to decorate a room
27. 27.🔍 Which is the odd one out? (a) a volcano (b) a mountain (c) a river (d) a bicycle
28. 28.🪢 A concrete slab weighing 14500 N rests evenly on 5 identical pillars. What compression force does each pillar carry, in newtons?
29. 29.🤝 In a design team, who keeps the team on track? (a) tester (b) builder (c) recorder (d) team leader
30. 30.Which of these is a lever? (a) a well-bucket rope wheel (b) a wheelchair ramp (c) a window blind cord (d) a crowbar
31. 31.🔢 To follow the engineering design process, which comes first: “Imagine” or “Improve”? (a) Imagine (b) Improve
32. 32.🧪 Three prototype bridges were tested with the same method. Design A held 260 g, design B held 310 g and design C held 210 g. Which design was the weakest? (a) design B (b) design C (c) design A
33. 33.🪝 A wheel and axle is a big wheel fixed to … (a) a sharp wedge (b) a smaller rod (axle) (c) a flat ramp (d) a loose rope
34. 34.True or false: a switch contact needs an electrical conductor. (a) False (b) True
35. 35.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) any child alone (b) the youngest child (c) a stranger (d) an adult
36. 36.⚖️ A seesaw balances. Kabir (? N) sits 2 m from the pivot on one side; Zoya (300 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
37. 37.⚖️ Going along a lever from one end to the other, the order is: effort, load, fulcrum. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
38. 38.📋 Your team’s budget is ₹25. You must buy one roll of tape for ₹5. Straws cost ₹1 each. What is the greatest number of straws you can buy?
39. 39.Which of these needs an electrical conductor? (a) a plug pin (b) a window pane (c) a water tank (d) an umbrella cover
40. 40.💪 Is kicking a football a push or a pull? (a) a push (b) a pull

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