Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 246 · 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.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
2. 2.🤝 A teammate’s idea seems odd. What should you do first? (a) ignore it (b) laugh at it (c) walk away (d) listen and ask why
3. 3.🔍 Which is the odd one out? (a) use only paper and tape (b) be under 30 cm tall (c) lift a cup of water (d) use at most 20 straws
4. 4.💪 A bag has a mass of 47 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
5. 5.🛞 More or less friction: powder on a carrom board? (a) more friction (b) less friction
6. 6.True or false: to cut away from your body is not safe. (a) False (b) True
7. 7.True or false: “float for 1 minute” is a constraint (a limit). (a) True (b) False
8. 8.🤝 In a design team, who shares out the jobs? (a) tester (b) builder (c) materials manager (d) team leader
9. 9.True or false: to skip writing results is good testing. (a) False (b) True
10. 10.Which job is a screwdriver for? (a) grip and bend wire (b) make a hole in wood (c) tighten a nut (d) turn a screw
11. 11.🪢 Tension or compression: a crane lifting cable? (a) compression (b) tension
12. 12.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “strengthen the weak part”? (a) strengthen the weak part (b) load it with coins
13. 13.🔺 Which strong shape does a round palace roof use? (a) beam (b) arch (c) dome (d) triangle
14. 14.🔢 To follow the engineering design process, which comes first: “Ask” or “Plan”? (a) Ask (b) Plan
15. 15.Which of these needs an electrical conductor? (a) a hair band (b) a window pane (c) an umbrella cover (d) a plug pin
16. 16.⚖️ A seesaw balances. Kabir (300 N) sits 1 m from the pivot on one side; Zoya (? N) sits 3 m from the pivot on the other side. What is the missing weight in newtons?
17. 17.🪝 What does a single fixed pulley change? (a) the colour of rope (b) the size of the load (c) gravity (d) the direction of pull
18. 18.🤝 In a design team, who checks the goals are met? (a) team leader (b) tester (c) builder (d) recorder
19. 19.True or false: a truss bridge side uses triangles. (a) True (b) False
20. 20.🧪 Is it good or poor testing to use a new load each time? (a) poor testing (b) good testing
21. 21.🧪 Three prototype bridges were tested with the same method. Design A held 320 g, design B held 370 g and design C held 270 g. Which design was the weakest? (a) design C (b) design B (c) design A
22. 22.🤝 A team of 2 shares 8 equal jobs fairly. Each job takes 7 minutes. How many minutes does each person work?
23. 23.🔍 Which is the odd one out? (a) roll at least 2 metres (b) hold up 500 g (c) spend at most ₹100 (d) stand in a fan breeze
24. 24.🪝 A load of 140 N hangs from a pulley system in which 2 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
25. 25.🧱 Is iron an electrical conductor or an insulator? (a) an insulator (b) a conductor
26. 26.True or false: to hide a failed test is good testing. (a) False (b) True
27. 27.True or false: a mechanical engineer lays out a highway. (a) False (b) True
28. 28.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
29. 29.📐 On a plan, 1 cm stands for 20 m. A real bridge is 240 m long. How long is it on the plan, in centimetres?
30. 30.🧪 The first prototype held 270 g. After the team improved it, the new prototype held 320 g. How many more grams did it hold?
31. 31.🧪 Is it good or poor testing to record every result? (a) good testing (b) poor testing
32. 32.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 2 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
33. 33.📐 How many centimetres are in 1 metre? (a) 60 (b) 1000 (c) 100 (d) 10
34. 34.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is colourful (d) it is lighter
35. 35.📋 Criteria are … (a) goals a design must meet (b) the limits on money (c) the tools you use (d) the team names
36. 36.🔺 A frame shaped like a pentagon is made of straws joined by loose pins, with 1 corner-to-corner brace. Is it rigid or wobbly? (a) wobbly (b) rigid
37. 37.True or false: an aerospace engineer designs a paint factory. (a) False (b) True
38. 38.📐 A beam is 670 cm long. How long is it in metres? =
39. 39.True or false: the core of a wire needs an electrical conductor. (a) False (b) True
40. 40.🏋️ Mechanical advantage (MA) = … (a) effort ÷ load (b) load × effort (c) load + effort (d) load ÷ effort

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