Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 591 · 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 team plans for 15 minutes, builds for 35 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
2. 2.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) what is for lunch? (b) how can we build it? (c) why is the sky blue? (d) who won the match?
3. 3.📋 Criterion: the model bridge must hold at least 500 g. In the test it held 550 g. Does it meet the criterion? (a) No (b) Yes
4. 4.True or false: “a log across a stream” is a suspension bridge. (a) True (b) False
5. 5.🪢 Which material is good in tension but useless in compression? (a) a stone (b) a concrete block (c) a rope (d) a brick
6. 6.🏋️ A 2 kg box is lifted straight up by 2 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
7. 7.⚖️ A lever balances when … (a) the bar is short (b) both weights are equal (c) turning effects match (d) the fulcrum moves
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.🧪 Three prototype bridges were tested with the same method. Design A held 300 g, design B held 250 g and design C held 200 g. Which design was the strongest? (a) design B (b) design C (c) design A
10. 10.🌉 In a suspension bridge, the main cables are in … (a) compression (b) friction (c) no force (d) tension
11. 11.True or false: a water tap handle is a pulley. (a) True (b) False
12. 12.True or false: a crane lifting cable is in tension (pulled). (a) True (b) False
13. 13.Which of these needs an electrical conductor? (a) a car seat belt (b) a hair band (c) a switch contact (d) a raincoat
14. 14.🧑‍🔧 Which kind of engineer designs knee implants? (a) electrical (b) biomedical (c) aerospace (d) civil
15. 15.Which of these is caused by muscular force? (a) a river flows downhill (b) pedalling a cycle (c) a magnet picks up pins (d) rubbing hands warms them
16. 16.🔢 To follow the engineering design process, what comes right after “Create”? (a) Test (b) Improve (c) Ask (d) Imagine
17. 17.♻️ Is wind a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
18. 18.🔺 How do engineers stop a square frame from wobbling? (a) add a diagonal brace (b) paint it (c) make it bigger (d) take off a side
19. 19.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 4750 N box up it, in newtons? (ideal ramp, no friction)
20. 20.Which of these happens in the Imagine step? (a) ask who will use it (b) find the limits (c) think of wild ideas (d) list the materials
21. 21.True or false: a civil engineer designs a metro tunnel. (a) False (b) True
22. 22.🏋️ Mechanical advantage (MA) = … (a) load ÷ effort (b) load × effort (c) load + effort (d) effort ÷ load
23. 23.Which job does a computer engineer do? (a) refines crude oil (b) lays out a highway (c) builds a website (d) designs a paint factory
24. 24.True or false: a beam balance is a class 3 lever (effort in the middle). (a) True (b) False
25. 25.🔢 To build and test a straw bridge, which is the LAST step? (a) strengthen the weak part (b) sketch three ideas (c) load it with coins (d) read the challenge rules
26. 26.⚙️ A screw is really … (a) a ramp wrapped round (b) a kind of wheel (c) a bent lever (d) a tiny pulley
27. 27.Which need does a lift meet? (a) go through a mountain (b) make power from sunlight (c) reach a top floor fast (d) see very tiny things
28. 28.⚙️ A wedge is … (a) a rope on a wheel (b) two ramps back to back (c) a wheel on a rod (d) a bar on a pivot
29. 29.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
30. 30.⚖️ Which class of lever is a pair of kitchen tongs? (a) class 3 (b) class 2 (c) class 1
31. 31.🛠️ People need to keep food fresh longer. Which invention helps? (a) a fridge (b) a dam (c) a train (d) a lift
32. 32.True or false: an electrical engineer designs power lines. (a) False (b) True
33. 33.🛞 Is friction helpful or a problem here: a knot holding a rope? (a) a problem (b) helpful
34. 34.🧪 Three prototype bridges were tested with the same method. Design A held 200 g, design B held 250 g and design C held 300 g. Which design was the weakest? (a) design B (b) design A (c) design C
35. 35.🔍 Which is the odd one out? (a) use only paper and tape (b) spend at most ₹100 (c) float for 1 minute (d) fit on a school desk
36. 36.⚖️ Going along a lever from one end to the other, the order is: fulcrum, load, effort. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
37. 37.🤝 A team plans for 45 minutes, builds for 10 minutes and then tests for 5 minutes, one after another. How many minutes is that in all?
38. 38.True or false: a movable pulley hangs on the rope loop. (a) False (b) True
39. 39.📋 A constraint is … (a) a final test (b) a limit you must keep to (c) a kind of glue (d) a goal for success
40. 40.🧑‍🔧 Which kind of engineer keeps data safe online? (a) civil (b) computer (c) aerospace (d) mechanical

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