Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 401 · 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 is the odd one out? (a) be under 30 cm tall (b) use at most 20 straws (c) finish in 40 minutes (d) roll at least 2 metres
2. 2.Which of these is in compression (pushed)? (a) a crane lifting cable (b) a pillar under a roof (c) a stretched rubber band (d) a tent guy rope
3. 3.⚖️ In a class 1 lever, what is in the middle? (a) the fulcrum (b) nothing (c) the effort (d) the load
4. 4.True or false: “carry 10 coins” is a constraint (a limit). (a) False (b) True
5. 5.🔺 A beam bends under a load. Its top side is … (a) squeezed (compression) (b) not affected (c) stretched (tension) (d) floating
6. 6.🔢 To follow the engineering design process, what comes right after “Plan”? (a) Create (b) Test (c) Improve (d) Imagine
7. 7.💪 In a tug of war, one team pulls left with 80 N and the other pulls right with 55 N. What is the size of the net force, in newtons?
8. 8.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) listen and ask why (c) walk away (d) ignore it
9. 9.True or false: to build the model is the Create step. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) having a wide base (d) using a heavy roof
11. 11.📐 A beam is 730 cm long. How long is it in metres? =
12. 12.🧪 Why do engineers make prototypes? (a) to sell them at once (b) to test ideas cheaply (c) to avoid testing (d) to decorate a room
13. 13.🔍 Which is the odd one out? (a) guess, do not measure (b) hide a failed test (c) repeat each test (d) skip writing results
14. 14.🔍 Which is the odd one out? (a) a crane lifting cable (b) a tow rope on a car (c) a swing chain (d) a temple column
15. 15.Which of these is an arch bridge? (a) tall towers hold cables (b) stones squeezed together (c) good for short gaps (d) cables tied down at ends
16. 16.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
17. 17.🔢 To follow the engineering design process, which comes first: “Ask” or “Improve”? (a) Improve (b) Ask
18. 18.🔍 Which is the odd one out? (a) plastic (b) cotton cloth (c) glass (d) steel
19. 19.🔺 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) rigid (b) wobbly
20. 20.True or false: a mechanical engineer designs bicycle gears. (a) False (b) True
21. 21.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
22. 22.🛞 Is friction helpful or a problem here: machine parts heating up? (a) helpful (b) a problem
23. 23.Which of these is caused by friction? (a) rubbing hands warms them (b) lifting a school bag (c) an apple falls down (d) a river flows downhill
24. 24.🤝 Is it good or poor teamwork to listen to every idea? (a) poor teamwork (b) good teamwork
25. 25.🌉 A beam bridge is 270 m long. Piers split it into equal spans of 45 m. How many spans are there?
26. 26.Which job does a computer engineer do? (a) designs school networks (b) designs hearing aids (c) designs bicycle gears (d) plans a power grid
27. 27.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
28. 28.Which of these is reduce (use less)? (a) switch off unused lights (b) melt glass into new jars (c) reuse gift paper (d) plant in old tyres
29. 29.🔺 A flat frame has 9 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
30. 30.🌉 In a stone arch bridge, the stones are in … (a) compression (b) tension (c) friction (d) no force
31. 31.🏋️ A 3 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
32. 32.🔍 Which is the odd one out? (a) roll at least 2 metres (b) fit on a school desk (c) hold up 500 g (d) keep ice for 1 hour
33. 33.♻️ Reduce, reuse or recycle: print on both sides? (a) reduce (b) reuse (c) recycle
34. 34.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
35. 35.Which job does a biomedical engineer do? (a) keeps data safe online (b) designs knee implants (c) plans a power grid (d) designs power lines
36. 36.True or false: a pair of kitchen tongs is a class 1 lever (fulcrum in the middle). (a) True (b) False
37. 37.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
38. 38.🌉 A beam bridge is 175 m long. Piers split it into equal spans of 35 m. How many spans are there?
39. 39.🏋️ A force of 100 N did 700 J of work. How many metres did the object move?
40. 40.🪝 A well winch has a handle (wheel) of radius 28 cm turning an axle of radius 4 cm. What is its mechanical advantage (MA)?

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