Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 856 · 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 branch of engineering works on aeroplanes and rockets? (a) civil (b) chemical (c) computer (d) aerospace
2. 2.📐 A beam is 630 cm long. How long is it in metres? =
3. 3.True or false: a mechanical engineer designs hearing aids. (a) True (b) False
4. 4.🪝 More rope sections holding a load means … (a) more effort needed (b) less effort needed (c) the load floats (d) no change
5. 5.True or false: a pair of kitchen tongs is a class 2 lever (load in the middle). (a) True (b) False
6. 6.📐 Why do engineers use scale drawings? (a) to make them pretty (b) to hide sizes (c) big things fit on paper (d) to save ink only
7. 7.🏋️ A smooth ramp is 10 m long and rises 2 m. What effort pushes a 750 N box up it, in newtons? (ideal ramp, no friction)
8. 8.True or false: a dam helps people store water for summer. (a) False (b) True
9. 9.📋 Criteria are … (a) the tools you use (b) the limits on money (c) the team names (d) goals a design must meet
10. 10.♻️ Reduce, reuse or recycle: melt glass into new jars? (a) reduce (b) reuse (c) recycle
11. 11.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
12. 12.⚖️ A seesaw balances. Asha (220 N) sits 3 m from the pivot on one side; Zoya (330 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
13. 13.🔍 Which is the odd one out? (a) a lift (b) a railway track (c) a dam (d) a coral reef
14. 14.🪝 Fixed or movable pulley: which one makes you pull 2× rope? (a) a fixed pulley (b) a movable pulley
15. 15.🤝 Is it good or poor teamwork to own up to a mistake? (a) poor teamwork (b) good teamwork
16. 16.🏋️ Can a simple machine reduce the work done? (a) only on Mondays (b) no, work stays the same (c) yes, always (d) yes, by half
17. 17.⚖️ A seesaw balances. Meena (260 N) sits 4 m from the pivot on one side; Kabir (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
18. 18.📐 How many millimetres are in 1 centimetre? (a) 100 (b) 5 (c) 1000 (d) 10
19. 19.🛠️ Is a ceiling fan made by engineers or found in nature? (a) found in nature (b) made by engineers
20. 20.♻️ A sustainable design … (a) lasts one day (b) wastes water (c) protects the future (d) uses the most plastic
21. 21.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
22. 22.🧱 Is steel an electrical conductor or an insulator? (a) a conductor (b) an insulator
23. 23.Which of these is a beam bridge? (a) a curve under the deck (b) the longest spans of all (c) pushes out on its ends (d) good for short gaps
24. 24.💪 In a tug of war, one team pulls right with 95 N and the other pulls left with 5 N. What is the size of the net force, in newtons?
25. 25.🤝 A teammate’s idea seems odd. What should you do first? (a) laugh at it (b) listen and ask why (c) ignore it (d) walk away
26. 26.🧪 A paper bridge was tested three times. It held 180 g, 110 g and 250 g. What is the mean (average) load it held, in grams?
27. 27.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
28. 28.🏋️ In which unit is work measured? (a) watt hour (b) joule (J) (c) metre (m) (d) newton (N)
29. 29.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
30. 30.🧱 Is copper an electrical conductor or an insulator? (a) a conductor (b) an insulator
31. 31.🔄 Which design-process step is it to dream up possible fixes? (a) Ask (b) Imagine (c) Create (d) Plan
32. 32.🤝 In a design team, who checks the goals are met? (a) builder (b) team leader (c) recorder (d) tester
33. 33.True or false: a nutcracker is a class 3 lever (effort in the middle). (a) True (b) False
34. 34.🔺 A flat frame has 11 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
35. 35.⚙️ Which simple machine is a well-bucket rope wheel? (a) wheel and axle (b) lever (c) screw (d) pulley
36. 36.⚖️ A lever balances when … (a) the fulcrum moves (b) the bar is short (c) both weights are equal (d) turning effects match
37. 37.True or false: “carry 10 coins” is a constraint (a limit). (a) True (b) False
38. 38.⚖️ Which class of lever is a broom when sweeping? (a) class 1 (b) class 2 (c) class 3
39. 39.Which of these happens in the Create step? (a) dream up possible fixes (b) draw a labelled diagram (c) brainstorm many ideas (d) build the model
40. 40.Which of these is a wedge? (a) a crane hook block (b) a claw hammer on a nail (c) a truck loading ramp (d) a chisel

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