Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 37 · 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 beam is 830 cm long. How long is it in metres? =
2. 2.🏋️ A 6 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
3. 3.⚖️ A seesaw balances. Zoya (? N) sits 4 m from the pivot on one side; Kabir (480 N) sits 1 m from the pivot on the other side. What is the missing weight in newtons?
4. 4.True or false: a telephone helps people talk to someone far away. (a) True (b) False
5. 5.📋 For a model bridge challenge, is “fit on a school desk” a constraint or a criterion? (a) a constraint (b) a criterion
6. 6.🪢 A sign weighing 400 N hangs from 4 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
7. 7.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 4 N, sandpaper 7 N, ice 1 N, a wooden plank 3 N. Which surface gave the most friction? (a) a wooden plank (b) sandpaper (c) a carpet (d) ice
8. 8.Which need does a dam meet? (a) make water safe to drink (b) store water for summer (c) talk to someone far away (d) make power from sunlight
9. 9.🦺 In the workshop, is it safe to put tools back after use? (a) not safe (b) safe
10. 10.📐 On a plan, 1 cm stands for 10 m. A real bridge is 70 m long. How long is it on the plan, in centimetres?
11. 11.🏋️ Pushing a crate 3 m took 120 J of work. What force was used, in newtons?
12. 12.🪝 A bucket weighing 370 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
13. 13.🤝 Is it good or poor teamwork to help a stuck teammate? (a) good teamwork (b) poor teamwork
14. 14.⚖️ A seesaw balances. Meena (? N) sits 4 m from the pivot on one side; Kabir (600 N) sits 4 m from the pivot on the other side. What is the missing weight in newtons?
15. 15.🤝 A team of 4 shares 20 equal jobs fairly. Each job takes 6 minutes. How many minutes does each person work?
16. 16.🔄 In which step do engineers draw a labelled diagram? (a) Ask (b) Plan (c) Improve (d) Test
17. 17.Which of these uses a beam? (a) a fort gateway (b) a roof truss (c) a round palace roof (d) a shelf on two brackets
18. 18.True or false: “float for 1 minute” is a constraint (a limit). (a) True (b) False
19. 19.🤝 A team plans for 10 minutes, builds for 15 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
20. 20.🌉 A beam bridge 300 m long is split by piers into 10 equal spans. How long is each span, in metres?
21. 21.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 15 cm long in the drawing. How long is the real car, in centimetres?
22. 22.🧪 A paper bridge was tested three times. It held 390 g, 310 g and 320 g. What is the mean (average) load it held, in grams?
23. 23.🧱 Which material is best for a raincoat? (a) cardboard (b) paper (c) plastic-coated cloth (d) cotton wool
24. 24.📐 Why do engineers use scale drawings? (a) to make them pretty (b) big things fit on paper (c) to save ink only (d) to hide sizes
25. 25.Which of these is caused by friction? (a) squeezing a lemon (b) rain falls to the ground (c) pedalling a cycle (d) a rolling ball slows
26. 26.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 100 g and design C held 150 g. Which design was the weakest? (a) design C (b) design A (c) design B
27. 27.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
28. 28.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
29. 29.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) reuse, recycle, reduce (c) recycle, reuse, reduce (d) burn, bury, forget
30. 30.True or false: a road up a hill is a pulley. (a) True (b) False
31. 31.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 220 g and design C held 270 g. Which design was the strongest? (a) design A (b) design C (c) design B
32. 32.True or false: to use the same load is poor testing. (a) True (b) False
33. 33.📋 Criteria are … (a) the team names (b) goals a design must meet (c) the tools you use (d) the limits on money
34. 34.🛠️ Is a rainbow made by engineers or found in nature? (a) found in nature (b) made by engineers
35. 35.🌉 Which bridge type: “tall towers hold cables”? (a) beam bridge (b) suspension bridge (c) arch bridge
36. 36.🛠️ What does an engineer do before building anything? (a) understands the problem (b) paints the model (c) builds at once (d) buys every material
37. 37.True or false: a pair of scissors is a class 3 lever (effort in the middle). (a) False (b) True
38. 38.🔄 What is the FIRST step of the engineering design process? (a) Ask (b) Test (c) Create (d) Improve
39. 39.📋 Your team’s budget is ₹42. You must buy one roll of tape for ₹10. Straws cost ₹5 each. What is the greatest number of straws you can buy?
40. 40.🛞 More or less friction: a smooth steel slide? (a) less friction (b) more friction

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