Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 688 · 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 model car is drawn so that 1 cm stands for 30 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
2. 2.🔢 To build and test a straw bridge, which is the FIRST step? (a) sketch three ideas (b) read the challenge rules (c) load it with coins (d) strengthen the weak part
3. 3.🧪 Is it good or poor testing to use the same load? (a) poor testing (b) good testing
4. 4.True or false: a bottle cap is a screw. (a) False (b) True
5. 5.True or false: “spend at most ₹100” is a criterion (a goal). (a) False (b) True
6. 6.What does the materials manager do? (a) collects the supplies (b) keeps the team on track (c) keeps the design notes (d) writes down results
7. 7.Which of these is reuse (use again)? (a) switch off unused lights (b) melt glass into new jars (c) fix a dripping tap (d) use a jar as a pen stand
8. 8.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) using a light roof (d) fitting rubber base pads
9. 9.📋 Constraint: the tower must be no taller than 40 cm. The team’s tower is 36 cm tall. Is it within the constraint? (a) Yes (b) No
10. 10.🛠️ What does an engineer mainly do? (a) designs useful solutions (b) sells tickets (c) grows crops (d) only paints pictures
11. 11.⚙️ How many simple machines are there in the usual list? (a) 12 (b) 3 (c) 6 (d) 10
12. 12.Which of these is in tension (pulled)? (a) a crane lifting cable (b) a stone in an arch (c) a temple column (d) a brick at a wall base
13. 13.🔺 A flat frame has 7 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
14. 14.🪢 A sign weighing 300 N hangs from 6 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
15. 15.♻️ Is sunlight a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
16. 16.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) no, it repeats (d) only on Sundays
17. 17.What does the recorder do? (a) writes down results (b) keeps the team on track (c) shares out the jobs (d) tracks what is used up
18. 18.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) biomedical (c) aerospace (d) electrical
19. 19.What does the tester do? (a) keeps the team on track (b) puts the model together (c) runs the tests (d) tracks what is used up
20. 20.True or false: to hide a failed test is poor testing. (a) False (b) True
21. 21.True or false: a flagpole rope wheel is a pulley. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) iron (b) brass (c) dry wood (d) steel
23. 23.True or false: a curved stone doorway uses an arch. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) touch a hot glue tip (b) run while holding tools (c) let adults use hot glue (d) play near a moving drill
25. 25.🪝 A winch has a wheel of radius 8 cm and an axle of radius 4 cm. What effort on the wheel lifts a 380 N bucket on the axle, in newtons? (ideal)
26. 26.🪢 Which material is good in tension but useless in compression? (a) a brick (b) a stone (c) a concrete block (d) a rope
27. 27.⚖️ In a class 2 lever, what is in the middle? (a) the axle (b) the effort (c) the load (d) the fulcrum
28. 28.🪝 A load of 400 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
29. 29.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
30. 30.🌉 Which bridge type: “a flat deck on piers”? (a) beam bridge (b) suspension bridge (c) arch bridge
31. 31.🪝 A winch has a wheel of radius 20 cm and an axle of radius 4 cm. What effort on the wheel lifts a 450 N bucket on the axle, in newtons? (ideal)
32. 32.🔢 To follow the engineering design process, which is the FIRST step? (a) Ask (b) Create (c) Test (d) Improve
33. 33.🤝 Is it good or poor teamwork to give kind feedback? (a) good teamwork (b) poor teamwork
34. 34.🧱 Which material is best for the bars inside concrete? (a) steel (b) glass (c) rubber (d) plastic
35. 35.🏋️ Pushing a crate 6 m took 2640 J of work. What force was used, in newtons?
36. 36.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 1 N, a glass sheet 3 N, a wooden plank 6 N, a carpet 9 N. Which surface gave the most friction? (a) a carpet (b) a glass sheet (c) a wooden plank (d) ice
37. 37.🏋️ A longer ramp to the same height needs … (a) less effort (b) no effort (c) more effort (d) the same effort
38. 38.True or false: an umbrella cover needs a waterproof material. (a) True (b) False
39. 39.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) walk away (c) listen and ask why (d) laugh at it
40. 40.🧪 Is it good or poor testing to test it only once? (a) poor testing (b) good testing

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