Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 487 · 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.🤝 In a design team, who writes down results? (a) materials manager (b) team leader (c) tester (d) recorder
2. 2.🧑‍🔧 Which branch of engineering uses engineering to help doctors? (a) civil (b) aerospace (c) electrical (d) biomedical
3. 3.⚙️ Which simple machine is an axe blade? (a) screw (b) pulley (c) wedge (d) lever
4. 4.Which of these happens in the Test step? (a) make it better, retest (b) fix the weak part (c) find the limits (d) measure its performance
5. 5.🛠️ What does an engineer do before building anything? (a) builds at once (b) understands the problem (c) paints the model (d) buys every material
6. 6.♻️ Reduce, reuse or recycle: fix a dripping tap? (a) recycle (b) reduce (c) reuse
7. 7.Which of these is in compression (pushed)? (a) a pillar under a roof (b) a hanging lamp chain (c) a stretched rubber band (d) a tent guy rope
8. 8.♻️ Which energy source will never run out? (a) sunlight (b) diesel (c) coal (d) petrol
9. 9.⚖️ A lever balances when … (a) the fulcrum moves (b) both weights are equal (c) the bar is short (d) turning effects match
10. 10.🪝 A bucket weighing 130 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
11. 11.💪 Which force is at work: pedalling a cycle? (a) friction (b) gravity (c) magnetic force (d) muscular force
12. 12.💪 In a tug of war, one team pulls right with 75 N and the other pulls left with 45 N. What is the size of the net force, in newtons?
13. 13.🧪 Is it good or poor testing to change lots at once? (a) poor testing (b) good testing
14. 14.🔍 Which is the odd one out? (a) brass (b) iron (c) cotton cloth (d) steel
15. 15.🏋️ A force of 80 N did 320 J of work. How many metres did the object move?
16. 16.🏋️ Pushing a crate 3 m took 1200 J of work. What force was used, in newtons?
17. 17.⚖️ Along a straight bar, measured from the left end, the effort is at 30 cm, the fulcrum at 60 cm and the load at 100 cm. Which class of lever is it? (a) class 2 (b) class 3 (c) class 1
18. 18.⚖️ A lever bar balances. The load is 80 N at ? cm from the fulcrum. The effort is 20 N at 40 cm from the fulcrum on the other side. What is the missing distance in centimetres?
19. 19.🧱 Which property matters most for a tea flask lining? (a) waterproof (b) transparent (c) heat insulator (d) flexible
20. 20.🔍 Which is the odd one out? (a) a smooth steel slide (b) powder on a carrom board (c) a wet tiled floor (d) a rough doormat
21. 21.True or false: drawing up a well bucket is a push. (a) True (b) False
22. 22.⚙️ A wedge is … (a) a wheel on a rod (b) a rope on a wheel (c) a bar on a pivot (d) two ramps back to back
23. 23.🦺 How should you carry scissors? (a) points down, closed (b) while running (c) by the blades (d) points up, open
24. 24.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) aluminium (d) dry wood
25. 25.🤝 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
26. 26.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a glass sheet 2 N, a wooden plank 5 N, a carpet 6 N, sandpaper 8 N. Which surface gave the least friction? (a) a glass sheet (b) a wooden plank (c) a carpet (d) sandpaper
27. 27.True or false: to make it better, retest is the Improve step. (a) True (b) False
28. 28.♻️ A family used to throw away 4 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 10 weeks?
29. 29.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) using flexible joints (d) building tall and narrow
30. 30.Which of these is a wheel and axle? (a) a round doorknob (b) a nut and bolt (c) a seesaw (d) a window blind cord
31. 31.Which of these is caused by friction? (a) rain falls to the ground (b) a rolling ball slows (c) an apple falls down (d) a river flows downhill
32. 32.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 450 g. Does it meet the criterion? (a) No (b) Yes
33. 33.Which of these is a suspension bridge? (a) deck hangs from cables (b) pushes out on its ends (c) a flat deck on piers (d) a log across a stream
34. 34.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
35. 35.Which of these is in compression (pushed)? (a) a hanging lamp chain (b) a table leg (c) a crane lifting cable (d) a tow rope on a car
36. 36.True or false: to touch a hot glue tip is safe. (a) True (b) False
37. 37.🔢 To follow the engineering design process, which comes first: “Improve” or “Ask”? (a) Ask (b) Improve
38. 38.🪝 Fixed or movable pulley: which one hangs on the rope loop? (a) a movable pulley (b) a fixed pulley
39. 39.⚖️ A seesaw balances. Meena (440 N) sits ? m from the pivot on one side; Ravi (110 N) sits 4 m from the pivot on the other side. What is the missing distance in metres?
40. 40.🏋️ A longer ramp to the same height needs … (a) no effort (b) less effort (c) the same effort (d) more effort

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