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Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 22 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.True or false: to listen to every idea is poor teamwork. (a) True (b) False
  2. 2.True or false: kicking a football is a pull. (a) False (b) True
  3. 3.Which of these is found in nature? (a) a mobile phone (b) a lift (c) a railway track (d) a mountain
  4. 4.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
  5. 5.🔍 Which is the odd one out? (a) steel (b) plastic (c) graphite (d) aluminium
  6. 6.⚖️ Which class of lever is a seesaw? (a) class 3 (b) class 2 (c) class 1
  7. 7.🪝 A pulley system lifts a 420 N load with an effort of 140 N. What is its mechanical advantage (MA)?
  8. 8.🔢 To follow the engineering design process, which comes first: “Improve” or “Ask”? (a) Improve (b) Ask
  9. 9.🔺 Which strong shape does a lintel over a door use? (a) arch (b) triangle (c) beam (d) dome
  10. 10.♻️ A family used to throw away 2 plastic bags a week. They now carry cloth bags. How many plastic bags do they save in 12 weeks?
  11. 11.True or false: to make a hole in wood, use a spanner. (a) True (b) False
  12. 12.⚖️ Along a straight bar, measured from the left end, the effort is at 50 cm, the fulcrum at 20 cm and the load at 0 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  13. 13.True or false: “spend at most ₹100” is a criterion (a goal). (a) False (b) True
  14. 14.True or false: a biomedical engineer designs hearing aids. (a) False (b) True
  15. 15.🛞 Friction acts … (a) only upwards (b) only on ice (c) against the motion (d) with the motion
  16. 16.📋 For a model bridge challenge, is “stand in a fan breeze” a constraint or a criterion? (a) a constraint (b) a criterion
  17. 17.🔢 To follow the engineering design process, what comes right after “Test”? (a) Improve (b) Plan (c) Create (d) Ask
  18. 18.🦺 In the workshop, is it safe to leave tools on the floor? (a) not safe (b) safe
  19. 19.🛠️ A scientist asks “why does it happen?”. An engineer mostly asks … (a) why is the sky blue? (b) what is for lunch? (c) how can we build it? (d) who won the match?
  20. 20.🏋️ Pushing a crate 4 m took 800 J of work. What force was used, in newtons?
  21. 21.Which of these happens in the Improve step? (a) find the limits (b) redesign after testing (c) pick the build order (d) try it out
  22. 22.True or false: a nutcracker is an inclined plane. (a) False (b) True
  23. 23.🧪 Is it good or poor testing to change only one thing? (a) good testing (b) poor testing
  24. 24.True or false: a bottle opener is a lever. (a) False (b) True
  25. 25.🔄 Which design-process step is it to measure its performance? (a) Imagine (b) Ask (c) Improve (d) Test
  26. 26.⚖️ Going along a lever from one end to the other, the order is: load, effort, fulcrum. Which class of lever is it? (a) class 3 (b) class 2 (c) class 1
  27. 27.🔄 In which step do engineers draw a labelled diagram? (a) Test (b) Ask (c) Plan (d) Improve
  28. 28.💪 A box weighs 10 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
  29. 29.🛠️ People need to talk to someone far away. Which invention helps? (a) a train (b) a bridge (c) a dam (d) a telephone
  30. 30.True or false: a water filter helps people make water safe to drink. (a) True (b) False
  31. 31.📐 A beam is 150 cm long. How long is it in metres? =
  32. 32.💪 Which force is at work: an apple falls down? (a) magnetic force (b) gravity (c) muscular force (d) friction
  33. 33.Which of these uses a dome? (a) a lintel over a door (b) a plank over a drain (c) a planetarium roof (d) a shelf on two brackets
  34. 34.True or false: natural gas is a non-renewable energy source. (a) True (b) False
  35. 35.♻️ Which is the BEST order to think about waste? (a) reduce, reuse, recycle (b) recycle, reuse, reduce (c) reuse, recycle, reduce (d) burn, bury, forget
  36. 36.🔄 After testing, a design does not work well. What comes next? (a) Improve (b) Ask (c) give up (d) Imagine
  37. 37.True or false: a cloud is made by engineers. (a) True (b) False
  38. 38.🛞 Is friction helpful or a problem here: a knot holding a rope? (a) helpful (b) a problem
  39. 39.True or false: pressing a doorbell is a push. (a) True (b) False
  40. 40.True or false: a boat hull needs a transparent material. (a) True (b) False

Answer key

  1. False
  2. False
  3. a mountain
  4. push or a pull
  5. plastic
  6. class 1
  7. 3
  8. Ask
  9. beam
  10. 24
  11. False
  12. class 1
  13. False
  14. True
  15. against the motion
  16. a criterion
  17. Improve
  18. not safe
  19. how can we build it?
  20. 200
  21. redesign after testing
  22. False
  23. good testing
  24. True
  25. Test
  26. class 3
  27. Plan
  28. 1
  29. a telephone
  30. True
  31. 1.5
  32. gravity
  33. a planetarium roof
  34. True
  35. reduce, reuse, recycle
  36. Improve
  37. False
  38. helpful
  39. True
  40. False

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