Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 226 · 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.🧪 Three prototype bridges were tested with the same method. Design A held 160 g, design B held 210 g and design C held 110 g. Which design was the strongest? (a) design A (b) design C (c) design B
2. 2.True or false: a dam helps people store water for summer. (a) True (b) False
3. 3.♻️ Which is the BEST order to think about waste? (a) reuse, recycle, reduce (b) recycle, reuse, reduce (c) reduce, reuse, recycle (d) burn, bury, forget
4. 4.🌉 In a stone arch bridge, the stones are in … (a) friction (b) compression (c) no force (d) tension
5. 5.🌉 In a suspension bridge, the main cables are in … (a) no force (b) tension (c) friction (d) compression
6. 6.🔍 Which is the odd one out? (a) spend at most ₹100 (b) use only paper and tape (c) finish in 40 minutes (d) carry 10 coins
7. 7.🔍 Which is the odd one out? (a) aluminium (b) dry wood (c) graphite (d) copper
8. 8.🤝 A team of 5 shares 15 equal jobs fairly. Each job takes 2 minutes. How many minutes does each person work?
9. 9.True or false: a computer engineer designs school networks. (a) True (b) False
10. 10.🔺 Which strong shape does an electric pylon use? (a) beam (b) triangle (c) arch (d) dome
11. 11.Which job does a biomedical engineer do? (a) designs a metro tunnel (b) designs car engines (c) designs knee implants (d) designs a paint factory
12. 12.🔄 Which design-process step is it to pick the build order? (a) Imagine (b) Ask (c) Plan (d) Create
13. 13.🛠️ Is a bicycle made by engineers or found in nature? (a) found in nature (b) made by engineers
14. 14.🔺 One side of a straw bridge is a row of 2 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
15. 15.Which of these is an arch bridge? (a) a curve under the deck (b) a flat deck on piers (c) the simplest bridge (d) good for short gaps
16. 16.⚖️ Which class of lever is a broom when sweeping? (a) class 2 (b) class 3 (c) class 1
17. 17.Which of these is a screw? (a) the tip of a nail (b) a steering wheel (c) a truck loading ramp (d) a bottle cap
18. 18.⚖️ A lever bar balances. The load is ? N at 50 cm from the fulcrum. The effort is 200 N at 100 cm from the fulcrum on the other side. What is the missing force in newtons?
19. 19.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
20. 20.🪝 A winch has a wheel of radius 4 cm and an axle of radius 2 cm. What effort on the wheel lifts a 60 N bucket on the axle, in newtons? (ideal)
21. 21.Which of these is in compression (pushed)? (a) a bridge pier (b) a tug of war rope (c) a crane lifting cable (d) a swing chain
22. 22.True or false: to measure the same way is good testing. (a) False (b) True
23. 23.⚙️ A wedge is … (a) a wheel on a rod (b) a rope on a wheel (c) two ramps back to back (d) a bar on a pivot
24. 24.Which job is a saw for? (a) check a shelf is level (b) turn a screw (c) cut a wooden plank (d) tighten a nut
25. 25.Which of these is caused by magnetic force? (a) rubbing hands warms them (b) squeezing a lemon (c) a thrown ball comes down (d) a magnet picks up pins
26. 26.🪝 A well winch has a handle (wheel) of radius 25 cm turning an axle of radius 5 cm. What is its mechanical advantage (MA)?
27. 27.🧑‍🔧 Which kind of engineer keeps data safe online? (a) computer (b) biomedical (c) aerospace (d) chemical
28. 28.📋 Criterion: the model bridge must hold at least 200 g. In the test it held 100 g. Does it meet the criterion? (a) Yes (b) No
29. 29.🔢 To build and test a straw bridge, what comes right after “choose and draw one”? (a) build it with straws (b) load it with coins (c) strengthen the weak part (d) sketch three ideas
30. 30.🏋️ A 14 kg box is lifted straight up by 5 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
31. 31.🤝 A team of 2 shares 8 equal jobs fairly. Each job takes 8 minutes. How many minutes does each person work?
32. 32.True or false: a movable pulley needs effort = load. (a) True (b) False
33. 33.📐 On a plan, 1 cm stands for 2 m. A real bridge is 18 m long. How long is it on the plan, in centimetres?
34. 34.⚙️ Most simple machines make work easier by letting us … (a) stop all friction (b) use a smaller force (c) make new energy (d) switch off gravity
35. 35.📋 For a model bridge challenge, is “use at most 20 straws” a constraint or a criterion? (a) a criterion (b) a constraint
36. 36.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: ice 3 N, a glass sheet 5 N, a carpet 6 N, sandpaper 8 N. Which surface gave the most friction? (a) a carpet (b) a glass sheet (c) sandpaper (d) ice
37. 37.🌉 Which bridge type: “a log across a stream”? (a) suspension bridge (b) arch bridge (c) beam bridge
38. 38.🪝 What does a single fixed pulley change? (a) gravity (b) the size of the load (c) the colour of rope (d) the direction of pull
39. 39.⚖️ Which class of lever is a crowbar? (a) class 3 (b) class 2 (c) class 1
40. 40.🧑‍🔧 Which kind of engineer designs hearing aids? (a) mechanical (b) computer (c) chemical (d) biomedical

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