Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 682 · 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.True or false: to change only one thing is good testing. (a) False (b) True
2. 2.📐 How many millimetres are in 1 centimetre? (a) 100 (b) 5 (c) 1000 (d) 10
3. 3.🔍 Which is the odd one out? (a) run while holding tools (b) touch a hot glue tip (c) cut away from your body (d) cut towards your hand
4. 4.🔍 Which is the odd one out? (a) clay pottery (b) brass (c) copper (d) graphite
5. 5.🪝 A pulley system lifts a 600 N load with an effort of 200 N. What is its mechanical advantage (MA)?
6. 6.🔢 To follow the engineering design process, what comes right after “Test”? (a) Ask (b) Plan (c) Imagine (d) Improve
7. 7.🔺 A frame shaped like a triangle is made of straws joined by loose pins, with 0 corner-to-corner braces. Is it rigid or wobbly? (a) rigid (b) wobbly
8. 8.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 40 cm and the load at 0 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
9. 9.🧪 A paper bridge was tested three times. It held 260 g, 170 g and 260 g. What is the mean (average) load it held, in grams?
10. 10.🛞 Why are tyres made with deep treads? (a) to look nice (b) to save rubber (c) to go slower (d) to grip the road
11. 11.🔺 Which strong shape does a crane arm use? (a) arch (b) beam (c) dome (d) triangle
12. 12.True or false: “carry 10 coins” is a constraint (a limit). (a) True (b) False
13. 13.Which need does a tunnel meet? (a) go through a mountain (b) make power from sunlight (c) make water safe to drink (d) store water for summer
14. 14.🧱 Which material is best for a raincoat? (a) cotton wool (b) paper (c) plastic-coated cloth (d) cardboard
15. 15.🦺 How should you carry scissors? (a) while running (b) points down, closed (c) points up, open (d) by the blades
16. 16.🛠️ People need to make power from sunlight. Which invention helps? (a) a dam (b) a solar panel (c) a lift (d) a telephone
17. 17.⚖️ A lever bar balances. The load is 90 N at 20 cm from the fulcrum. The effort is 60 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
18. 18.Which of these uses triangles? (a) a round palace roof (b) an old stone bridge (c) an electric pylon (d) a lintel over a door
19. 19.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.True or false: a water tap handle is a wheel and axle. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) play near a moving drill (b) carry scissors closed (c) run while holding tools (d) touch a hot glue tip
22. 22.Which job does a chemical engineer do? (a) plans a dam (b) designs a paint factory (c) designs electric motors (d) designs car engines
23. 23.📐 How many metres are in 1 kilometre? (a) 100 (b) 10 (c) 10000 (d) 1000
24. 24.🔄 After testing, a design does not work well. What comes next? (a) Improve (b) give up (c) Imagine (d) Ask
25. 25.True or false: to play near a moving drill is not safe. (a) False (b) True
26. 26.🔄 Which design-process step is it to measure its performance? (a) Improve (b) Test (c) Ask (d) Plan
27. 27.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) computer (b) aerospace (c) chemical (d) civil
28. 28.Which of these needs an electrical conductor? (a) a boat hull (b) the core of a wire (c) a roof sheet (d) an oven glove
29. 29.True or false: pushing a swing is a push. (a) False (b) True
30. 30.Which of these is in tension (pulled)? (a) a tug of war rope (b) a pillar under a roof (c) a squeezed spring (d) a tall bridge tower
31. 31.True or false: a pair of pliers is a class 1 lever (fulcrum in the middle). (a) False (b) True
32. 32.True or false: “spend at most ₹100” is a constraint (a limit). (a) False (b) True
33. 33.True or false: plucking a mango is a pull. (a) True (b) False
34. 34.True or false: a mechanical engineer designs aeroplane wings. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) skip writing results (b) change lots at once (c) hide a failed test (d) use the same load
36. 36.♻️ Reduce, reuse or recycle: reuse gift paper? (a) reduce (b) recycle (c) reuse
37. 37.📐 Why do engineers use scale drawings? (a) to save ink only (b) to hide sizes (c) big things fit on paper (d) to make them pretty
38. 38.🤝 Is it good or poor teamwork to hide a mistake? (a) poor teamwork (b) good teamwork
39. 39.🔢 To build and test a straw bridge, which comes first: “load it with coins” or “build it with straws”? (a) build it with straws (b) load it with coins
40. 40.🏋️ A 1 kg box is lifted straight up by 3 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?

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