Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 39 · 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.Which of these happens in the Imagine step? (a) define the problem (b) make it better, retest (c) brainstorm many ideas (d) ask who will use it
2. 2.🔢 To build and test a straw bridge, what comes right after “build it with straws”? (a) choose and draw one (b) load it with coins (c) read the challenge rules (d) strengthen the weak part
3. 3.🧱 Is rubber an electrical conductor or an insulator? (a) an insulator (b) a conductor
4. 4.🤝 Is it good or poor teamwork to blame others for faults? (a) good teamwork (b) poor teamwork
5. 5.🔺 Which strong shape does a shelf on two brackets use? (a) dome (b) triangle (c) arch (d) beam
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
7. 7.♻️ Which energy source will never run out? (a) diesel (b) petrol (c) sunlight (d) coal
8. 8.🔺 How do engineers stop a square frame from wobbling? (a) paint it (b) make it bigger (c) take off a side (d) add a diagonal brace
9. 9.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
10. 10.📐 Why do engineers use scale drawings? (a) to save ink only (b) big things fit on paper (c) to hide sizes (d) to make them pretty
11. 11.🏋️ A force of 160 N did 640 J of work. How many metres did the object move?
12. 12.Which of these is an inclined plane? (a) the tip of a nail (b) a playground slide (c) a door stopper (d) a window blind cord
13. 13.⚙️ How many simple machines are there in the usual list? (a) 10 (b) 3 (c) 12 (d) 6
14. 14.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 40 cm and the load at 0 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
15. 15.🪝 A load of 510 N hangs from a pulley system in which 3 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
16. 16.Which of these needs a heat insulator? (a) an umbrella cover (b) a switch contact (c) a tea flask lining (d) a boat hull
17. 17.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) ignore it (c) walk away (d) listen and ask why
18. 18.Which of these is a pulley? (a) a door stopper (b) a steering wheel (c) a flagpole rope wheel (d) a road up a hill
19. 19.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) biomedical (b) electrical (c) civil (d) aerospace
20. 20.⚙️ Most simple machines make work easier by letting us … (a) make new energy (b) stop all friction (c) use a smaller force (d) switch off gravity
21. 21.True or false: a car windscreen needs a transparent material. (a) True (b) False
22. 22.🔄 Which design-process step is it to brainstorm many ideas? (a) Imagine (b) Create (c) Improve (d) Ask
23. 23.Which of these is in tension (pulled)? (a) a temple column (b) a crane lifting cable (c) a squeezed spring (d) a stone in an arch
24. 24.Which of these is a screw? (a) a wood screw (b) a flagpole rope wheel (c) an axe blade (d) a crowbar
25. 25.True or false: to play near a moving drill is safe. (a) True (b) False
26. 26.True or false: a biomedical engineer designs bicycle gears. (a) False (b) True
27. 27.📐 How many millimetres are in 1 centimetre? (a) 100 (b) 1000 (c) 10 (d) 5
28. 28.Which of these is a lever? (a) a screw jack (b) a crowbar (c) a crane hook block (d) a window blind cord
29. 29.📋 Your team’s budget is ₹65. You must buy one roll of tape for ₹5. Straws cost ₹4 each. What is the greatest number of straws you can buy?
30. 30.🔢 To build and test a straw bridge, which comes first: “read the challenge rules” or “load it with coins”? (a) load it with coins (b) read the challenge rules
31. 31.🪝 A pulley system has 2 rope sections holding up the load. To lift the load by 6 m, how many metres of rope must you pull?
32. 32.What does the recorder do? (a) writes down results (b) collects the supplies (c) cuts and joins parts (d) shares out the jobs
33. 33.True or false: a raincoat needs a heat insulator. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) copper (b) iron (c) aluminium (d) glass
35. 35.🛠️ Which of these is a problem an engineer could solve? (a) a boring story (b) a road that floods (c) a sad song (d) a lost cricket match
36. 36.⚙️ Which simple machine is a bottle opener? (a) wheel and axle (b) pulley (c) inclined plane (d) lever
37. 37.⚖️ On a seesaw, a heavier child should sit … (a) closer to the pivot (b) anywhere (c) farther from the pivot (d) on the pivot
38. 38.🛠️ People need to make water safe to drink. Which invention helps? (a) a microscope (b) a solar panel (c) a water filter (d) a tunnel
39. 39.📋 Criterion: the model bridge must hold at least 900 g. In the test it held 800 g. Does it meet the criterion? (a) No (b) Yes
40. 40.🔧 Which tool would you use to make a hole in wood? (a) sandpaper (b) a protractor (c) a hand drill (d) a screwdriver

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