Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 130 · 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.⚖️ A seesaw balances. Kabir (340 N) sits 1 m from the pivot on one side; Arjun (170 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
2. 2.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
3. 3.True or false: to measure a long length, use a tape measure. (a) True (b) False
4. 4.Which of these is made by engineers? (a) a water filter (b) a cloud (c) a waterfall (d) a volcano
5. 5.🧑‍🔧 Which kind of engineer runs a fertiliser plant? (a) computer (b) electrical (c) chemical (d) mechanical
6. 6.Which of these happens in the Create step? (a) dream up possible fixes (b) make a prototype (c) redesign after testing (d) think of wild ideas
7. 7.♻️ Is biogas from waste a renewable or a non-renewable energy source? (a) renewable (b) non-renewable
8. 8.🛠️ Is a mobile phone made by engineers or found in nature? (a) made by engineers (b) found in nature
9. 9.Which of these needs a waterproof material? (a) a plug pin (b) the core of a wire (c) a boat hull (d) a skipping rope
10. 10.🏋️ Pushing a crate 1 m took 250 J of work. What force was used, in newtons?
11. 11.💪 Two children push a box to the right, one with 10 N and the other with 100 N. What is the net (total) force on the box, in newtons?
12. 12.True or false: an aerospace engineer designs satellites. (a) True (b) False
13. 13.🧪 Is it good or poor testing to use a new load each time? (a) good testing (b) poor testing
14. 14.📋 Criterion: the model bridge must hold at least 600 g. In the test it held 750 g. Does it meet the criterion? (a) Yes (b) No
15. 15.🪢 A sign weighing 380 N hangs from 2 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
16. 16.Which of these needs a waterproof material? (a) a plug pin (b) a yoga mat (c) a hair band (d) a roof sheet
17. 17.🛞 Is friction helpful or a problem here: walking without slipping? (a) helpful (b) a problem
18. 18.🔺 A flat frame has 10 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
19. 19.🌉 In a suspension bridge, the main cables are in … (a) no force (b) compression (c) friction (d) tension
20. 20.🧑‍🔧 Which kind of engineer designs a metro tunnel? (a) computer (b) mechanical (c) chemical (d) civil
21. 21.⚖️ A lever balances when … (a) turning effects match (b) the fulcrum moves (c) the bar is short (d) both weights are equal
22. 22.True or false: a pair of tweezers is a class 2 lever (load in the middle). (a) True (b) False
23. 23.🧪 Is it good or poor testing to repeat each test? (a) good testing (b) poor testing
24. 24.🛞 Why are tyres made with deep treads? (a) to go slower (b) to look nice (c) to grip the road (d) to save rubber
25. 25.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
26. 26.🤝 Is it good or poor teamwork to talk over others? (a) good teamwork (b) poor teamwork
27. 27.True or false: a claw hammer on a nail is a wheel and axle. (a) False (b) True
28. 28.Which of these is caused by muscular force? (a) a compass needle turns (b) brakes stop a bicycle (c) shoes grip the floor (d) lifting a school bag
29. 29.True or false: to guess, do not measure is poor testing. (a) False (b) True
30. 30.🧑‍🔧 Which kind of engineer builds hospital scanners? (a) biomedical (b) civil (c) electrical (d) aerospace
31. 31.⚖️ Along a straight bar, measured from the left end, the effort is at 70 cm, the fulcrum at 60 cm and the load at 20 cm. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
32. 32.⚖️ A seesaw balances. Meena (480 N) sits ? m from the pivot on one side; Kabir (640 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
33. 33.📋 For a model bridge challenge, is “keep ice for 1 hour” a constraint or a criterion? (a) a constraint (b) a criterion
34. 34.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.⚙️ Which simple machine is a nut and bolt? (a) screw (b) wheel and axle (c) wedge (d) pulley
36. 36.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 10 (c) 100 (d) 1000
37. 37.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 0 cm and the load at 60 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
38. 38.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
39. 39.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) cotton cloth (d) glass
40. 40.True or false: “use only paper and tape” is a constraint (a limit). (a) True (b) False

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