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Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 341 · 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.

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  1. 1.Which of these is recycle (make new things)? (a) print on both sides (b) give old books away (c) pulp old paper (d) reuse gift paper
  2. 2.Which of these is in compression (pushed)? (a) a crane lifting cable (b) a hanging lamp chain (c) a tow rope on a car (d) a pillar under a roof
  3. 3.⚖️ Along a straight bar, measured from the left end, the effort is at 60 cm, the fulcrum at 20 cm and the load at 40 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
  4. 4.🔍 Which is the odd one out? (a) a satellite (b) a dam (c) a bridge (d) a rainbow
  5. 5.🔺 One side of a straw bridge is a row of 5 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
  6. 6.🔢 To build and test a straw bridge, which comes first: “sketch three ideas” or “choose and draw one”? (a) choose and draw one (b) sketch three ideas
  7. 7.🌉 Which bridge type: “a flat deck on piers”? (a) arch bridge (b) beam bridge (c) suspension bridge
  8. 8.🔧 Which tool would you use to tighten a nut? (a) a protractor (b) sandpaper (c) pliers (d) a spanner
  9. 9.True or false: a broom when sweeping is a class 3 lever (effort in the middle). (a) False (b) True
  10. 10.🔄 Is the engineering design process done only once? (a) yes, only once (b) only for big jobs (c) only on Sundays (d) no, it repeats
  11. 11.♻️ A project report has 14 pages. How many sheets of paper are needed if it is printed on both sides of each sheet?
  12. 12.🪝 A bucket weighing 130 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
  13. 13.🏋️ A force of 400 N did 800 J of work. How many metres did the object move?
  14. 14.📐 On a plan, 1 cm stands for 10 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
  15. 15.📋 A constraint is … (a) a goal for success (b) a limit you must keep to (c) a kind of glue (d) a final test
  16. 16.🪝 More rope sections holding a load means … (a) no change (b) less effort needed (c) more effort needed (d) the load floats
  17. 17.♻️ A school bench is made from 250 recycled plastic bottles. How many benches can be made from 2250 bottles?
  18. 18.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
  19. 19.True or false: to do all the work alone is poor teamwork. (a) False (b) True
  20. 20.📋 For a model bridge challenge, is “finish in 40 minutes” a constraint or a criterion? (a) a constraint (b) a criterion
  21. 21.🔍 Which is the odd one out? (a) skip writing results (b) measure the same way (c) change lots at once (d) guess, do not measure
  22. 22.True or false: a car windscreen needs a transparent material. (a) True (b) False
  23. 23.🔢 To follow the engineering design process, which comes first: “Test” or “Improve”? (a) Improve (b) Test
  24. 24.📋 Your team’s budget is ₹118. You must buy one roll of tape for ₹10. Straws cost ₹4 each. What is the greatest number of straws you can buy?
  25. 25.🧑‍🔧 Which kind of engineer plans a space mission? (a) biomedical (b) mechanical (c) civil (d) aerospace
  26. 26.True or false: “use at most 20 straws” is a constraint (a limit). (a) True (b) False
  27. 27.True or false: a satellite is found in nature. (a) False (b) True
  28. 28.🪝 A load of 200 N hangs from a pulley system in which 4 rope sections hold up the load. What effort is needed, in newtons? (ideal pulleys)
  29. 29.True or false: drawing up a well bucket is a push. (a) False (b) True
  30. 30.True or false: a computer engineer designs a paint factory. (a) False (b) True
  31. 31.True or false: to build the model is the Create step. (a) True (b) False
  32. 32.Which of these happens in the Improve step? (a) build the model (b) try it out (c) make it better, retest (d) make a prototype
  33. 33.Which of these happens in the Improve step? (a) ask who will use it (b) follow the plan to build (c) fix the weak part (d) list the materials
  34. 34.🌉 Which bridge type: “a rope bridge in hills”? (a) suspension bridge (b) arch bridge (c) beam bridge
  35. 35.📋 Constraint: the tower must be no taller than 90 cm. The team’s tower is 96 cm tall. Is it within the constraint? (a) No (b) Yes
  36. 36.⚙️ How many simple machines are there in the usual list? (a) 3 (b) 10 (c) 12 (d) 6
  37. 37.🧪 In a fair test, how many things do you change at a time? (a) none (b) one (c) all of them (d) two
  38. 38.True or false: “good for short gaps” is an arch bridge. (a) False (b) True
  39. 39.🛠️ Is a mountain made by engineers or found in nature? (a) made by engineers (b) found in nature
  40. 40.🏋️ A smooth ramp is 6 m long and rises 2 m. What effort pushes a 3000 N box up it, in newtons? (ideal ramp, no friction)

Answer key

  1. pulp old paper
  2. a pillar under a roof
  3. class 2
  4. a rainbow
  5. 11
  6. sketch three ideas
  7. beam bridge
  8. a spanner
  9. True
  10. no, it repeats
  11. 7
  12. 130
  13. 2
  14. 20
  15. a limit you must keep to
  16. less effort needed
  17. 9
  18. a pull
  19. True
  20. a constraint
  21. measure the same way
  22. True
  23. Test
  24. 27
  25. aerospace
  26. True
  27. False
  28. 50
  29. False
  30. False
  31. True
  32. make it better, retest
  33. fix the weak part
  34. suspension bridge
  35. No
  36. 6
  37. one
  38. False
  39. found in nature
  40. 1000

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