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Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 870 · 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.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
  2. 2.🛠️ What does an engineer do before building anything? (a) buys every material (b) paints the model (c) understands the problem (d) builds at once
  3. 3.🏋️ A 16 kg box is lifted straight up by 1 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  4. 4.🧱 Which material is best for the bars inside concrete? (a) rubber (b) glass (c) plastic (d) steel
  5. 5.🧱 Is graphite an electrical conductor or an insulator? (a) a conductor (b) an insulator
  6. 6.💪 Which force is at work: a thrown ball comes down? (a) magnetic force (b) muscular force (c) gravity (d) friction
  7. 7.True or false: a biomedical engineer designs knee implants. (a) False (b) True
  8. 8.Which of these uses a beam? (a) an igloo (b) a lintel over a door (c) a fort gateway (d) a crane arm
  9. 9.Which of these is a wheel and axle? (a) a chisel (b) a round doorknob (c) a playground slide (d) a road up a hill
  10. 10.True or false: powder on a carrom board gives more friction. (a) True (b) False
  11. 11.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 40 N at 30 cm from the fulcrum on the other side. What is the missing force in newtons?
  12. 12.⚖️ A seesaw balances. Ravi (480 N) sits ? m from the pivot on one side; Kabir (160 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
  13. 13.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
  14. 14.🤝 How do engineers share a design with others? (a) clear labelled sketches (b) only talking fast (c) no drawings at all (d) secret notes
  15. 15.🧑‍🔧 Which branch of engineering designs buildings, roads and bridges? (a) chemical (b) civil (c) computer (d) biomedical
  16. 16.🧪 Is it good or poor testing to change lots at once? (a) good testing (b) poor testing
  17. 17.🧱 Which material is best for the core of an electric wire? (a) rubber (b) copper (c) wood (d) glass
  18. 18.⚖️ A lever bar balances. The load is 100 N at 20 cm from the fulcrum. The effort is 100 N at ? cm from the fulcrum on the other side. What is the missing distance in centimetres?
  19. 19.🏋️ A smooth ramp is 15 m long and rises 3 m. What effort pushes a 1500 N box up it, in newtons? (ideal ramp, no friction)
  20. 20.🧪 Three prototype bridges were tested with the same method. Design A held 270 g, design B held 220 g and design C held 320 g. Which design was the strongest? (a) design C (b) design A (c) design B
  21. 21.🔍 Which is the odd one out? (a) skating on ice (b) sand on a slippery path (c) a wet tiled floor (d) oil on a squeaky hinge
  22. 22.True or false: to guess, do not measure is poor testing. (a) False (b) True
  23. 23.🤝 In a design team, who tracks what is used up? (a) materials manager (b) builder (c) recorder (d) tester
  24. 24.🔍 Which is the odd one out? (a) a banyan tree (b) a mobile phone (c) a cloud (d) a river
  25. 25.🧑‍🔧 Which branch of engineering works on aeroplanes and rockets? (a) aerospace (b) chemical (c) civil (d) computer
  26. 26.True or false: “good for short gaps” is an arch bridge. (a) False (b) True
  27. 27.⚖️ Which class of lever is a wheelbarrow? (a) class 3 (b) class 2 (c) class 1
  28. 28.Which need does a bridge meet? (a) store water for summer (b) cross a wide river (c) talk to someone far away (d) keep food fresh longer
  29. 29.💪 A bag has a mass of 56 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
  30. 30.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 30 cm and the load at 60 cm. Which class of lever is it? (a) class 1 (b) class 3 (c) class 2
  31. 31.⚖️ In a class 3 lever, what is in the middle? (a) the fulcrum (b) the load (c) the effort (d) the pulley
  32. 32.True or false: “use at most 20 straws” is a criterion (a goal). (a) True (b) False
  33. 33.True or false: a movable pulley rises with the load. (a) True (b) False
  34. 34.📐 How many millimetres are in 1 centimetre? (a) 1000 (b) 5 (c) 100 (d) 10
  35. 35.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 30 cm and the load at 40 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
  36. 36.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) using flexible joints (d) adding steel to concrete
  37. 37.🛞 Is friction helpful or a problem here: a knot holding a rope? (a) helpful (b) a problem
  38. 38.True or false: a seesaw is a wedge. (a) False (b) True
  39. 39.🪢 Tension or compression: a tug of war rope? (a) tension (b) compression
  40. 40.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True

Answer key

  1. it is harder to tip over
  2. understands the problem
  3. 160
  4. steel
  5. a conductor
  6. gravity
  7. True
  8. a lintel over a door
  9. a round doorknob
  10. False
  11. 60
  12. 1
  13. 330
  14. clear labelled sketches
  15. civil
  16. poor testing
  17. copper
  18. 20
  19. 300
  20. design C
  21. sand on a slippery path
  22. True
  23. materials manager
  24. a mobile phone
  25. aerospace
  26. False
  27. class 2
  28. cross a wide river
  29. 560
  30. class 3
  31. the effort
  32. False
  33. True
  34. 10
  35. class 2
  36. making brittle joints
  37. helpful
  38. False
  39. tension
  40. False

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