Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 960 · 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.🤝 A team plans for 10 minutes, builds for 50 minutes and then tests for 20 minutes, one after another. How many minutes is that in all?
2. 2.📐 How many centimetres are in 1 metre? (a) 1000 (b) 60 (c) 10 (d) 100
3. 3.🧱 Which property matters most for a window pane? (a) flexible (b) waterproof (c) heat insulator (d) transparent
4. 4.Which job is a saw for? (a) check a shelf is level (b) smooth a rough edge (c) cut a wooden plank (d) make a hole in wood
5. 5.Which of these is a suspension bridge? (a) a flat deck on piers (b) stones squeezed together (c) pushes out on its ends (d) cables tied down at ends
6. 6.True or false: an umbrella cover needs a waterproof material. (a) False (b) True
7. 7.⚖️ A seesaw balances. Asha (? N) sits 2 m from the pivot on one side; Kabir (200 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
8. 8.🛠️ People need to reach a top floor fast. Which invention helps? (a) a telephone (b) a water filter (c) a lift (d) a solar panel
9. 9.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) gravity (c) magnetic force (d) muscular force
10. 10.🛞 More or less friction: a grippy rubber sole? (a) less friction (b) more friction
11. 11.Which of these happens in the Create step? (a) check it against goals (b) ask who will use it (c) make a prototype (d) list the materials
12. 12.True or false: to measure its performance is the Improve step. (a) True (b) False
13. 13.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 2 N, a glass sheet 3 N, a wooden plank 5 N, sandpaper 6 N. Which surface gave the most friction? (a) ice (b) a glass sheet (c) sandpaper (d) a wooden plank
14. 14.📋 Your team’s budget is ₹28. You must buy one roll of tape for ₹15. Straws cost ₹2 each. What is the greatest number of straws you can buy?
15. 15.Which of these needs a heat insulator? (a) a boat hull (b) a cooking pot handle (c) a yoga mat (d) a plug pin
16. 16.💪 A cart is pulled to the right with 70 N and to the left with 55 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
17. 17.🔄 What is the FIRST step of the engineering design process? (a) Test (b) Improve (c) Ask (d) Create
18. 18.♻️ A family used to throw away 3 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 4 weeks?
19. 19.📋 Constraint: the tower must be no taller than 50 cm. The team’s tower is 44 cm tall. Is it within the constraint? (a) No (b) Yes
20. 20.Which of these is a pulley? (a) a truck loading ramp (b) a crane hook block (c) the tip of a nail (d) a water tap handle
21. 21.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
22. 22.📋 Your team’s budget is ₹122. You must buy one roll of tape for ₹20. Straws cost ₹4 each. What is the greatest number of straws you can buy?
23. 23.🧪 Three prototype bridges were tested with the same method. Design A held 290 g, design B held 390 g and design C held 340 g. Which design was the strongest? (a) design A (b) design B (c) design C
24. 24.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a criterion (b) a constraint
25. 25.🔍 Which is the odd one out? (a) a swing chain (b) a tug of war rope (c) a suspension cable (d) a stone in an arch
26. 26.🔍 Which is the odd one out? (a) a table leg (b) a suspension cable (c) a stone in an arch (d) a tall bridge tower
27. 27.True or false: a well-bucket rope wheel is a screw. (a) False (b) True
28. 28.🦺 What protects your eyes when sawing or drilling? (a) sunglasses (b) nothing (c) safety goggles (d) a cap
29. 29.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
30. 30.🪝 A load of 180 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
31. 31.🔢 To follow the engineering design process, which is the FIRST step? (a) Ask (b) Improve (c) Create (d) Test
32. 32.🔄 Which design-process step is it to find the limits? (a) Plan (b) Ask (c) Imagine (d) Test
33. 33.🪝 A bucket weighing 30 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
34. 34.🌉 Which bridge type: “a curve under the deck”? (a) beam bridge (b) suspension bridge (c) arch bridge
35. 35.🧱 Which material is best for a window pane? (a) glass (b) steel (c) brick (d) wood
36. 36.📋 Criterion: the model bridge must hold at least 400 g. In the test it held 350 g. Does it meet the criterion? (a) No (b) Yes
37. 37.🔍 Which is the odd one out? (a) repeat each test (b) test it only once (c) change only one thing (d) use the same load
38. 38.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
39. 39.🧪 A paper bridge was tested three times. It held 200 g, 170 g and 230 g. What is the mean (average) load it held, in grams?
40. 40.True or false: a roof sheet needs an electrical conductor. (a) False (b) True

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