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Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 973 · 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: a tall bridge tower is in tension (pulled). (a) True (b) False
  2. 2.📋 Your team’s budget is ₹129. You must buy one roll of tape for ₹20. Straws cost ₹4 each. What is the greatest number of straws you can buy?
  3. 3.True or false: pulling up your socks is a push. (a) True (b) False
  4. 4.True or false: a mobile phone is made by engineers. (a) True (b) False
  5. 5.🪢 A concrete slab weighing 21600 N rests evenly on 8 identical pillars. What compression force does each pillar carry, in newtons?
  6. 6.Which job does a civil engineer do? (a) designs school networks (b) lays out a highway (c) writes app software (d) designs hearing aids
  7. 7.🔺 A flat frame has 8 straight sides joined by loose pins at the corners. What is the least number of corner-to-corner braces needed to make it rigid?
  8. 8.True or false: a chemical engineer designs a paint factory. (a) True (b) False
  9. 9.True or false: a wet tiled floor gives less friction. (a) True (b) False
  10. 10.⚖️ On a seesaw, a heavier child should sit … (a) farther from the pivot (b) closer to the pivot (c) anywhere (d) on the pivot
  11. 11.🪝 A bucket weighing 450 N is lifted with a single fixed pulley at the top of a well. What effort is needed, in newtons? (ideal pulley, no friction)
  12. 12.Which of these needs an electrical conductor? (a) a switch contact (b) a window pane (c) a boat hull (d) an oven glove
  13. 13.Which of these is an arch bridge? (a) cables tied down at ends (b) good for short gaps (c) pushes out on its ends (d) a flat deck on piers
  14. 14.True or false: “hold up 500 g” is a criterion (a goal). (a) True (b) False
  15. 15.♻️ Is diesel a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
  16. 16.⚖️ A seesaw balances. Ravi (130 N) sits 3 m from the pivot on one side; Meena (390 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
  17. 17.Which job is a tape measure for? (a) measure an angle (b) check a shelf is level (c) measure a long length (d) drive in a nail
  18. 18.📐 How many metres are in 1 kilometre? (a) 100 (b) 10000 (c) 1000 (d) 10
  19. 19.True or false: a tow rope on a car is in tension (pulled). (a) False (b) True
  20. 20.🔢 To build and test a straw bridge, what comes right after “sketch three ideas”? (a) choose and draw one (b) build it with straws (c) load it with coins (d) read the challenge rules
  21. 21.🛠️ Is a bridge made by engineers or found in nature? (a) made by engineers (b) found in nature
  22. 22.🧱 Which property matters most for a car windscreen? (a) electrical conductor (b) waterproof (c) heat insulator (d) transparent
  23. 23.True or false: a mechanical engineer designs hearing aids. (a) True (b) False
  24. 24.True or false: an electrical engineer writes app software. (a) False (b) True
  25. 25.Which of these is a pulley? (a) a wheelchair ramp (b) a wood screw (c) a steering wheel (d) a window blind cord
  26. 26.True or false: oil on a squeaky hinge gives less friction. (a) True (b) False
  27. 27.⚖️ Along a straight bar, measured from the left end, the effort is at 20 cm, the fulcrum at 70 cm and the load at 60 cm. Which class of lever is it? (a) class 3 (b) class 1 (c) class 2
  28. 28.🦺 Who should use hot glue guns and power tools in a kids’ project? (a) the youngest child (b) a stranger (c) any child alone (d) an adult
  29. 29.🔺 One side of a straw bridge is a row of 14 triangles standing point-up and point-down in turn, each sharing a side with the next. How many straws does it use?
  30. 30.🏋️ A smooth ramp is 5 m long and rises 1 m. What effort pushes a 2500 N box up it, in newtons? (ideal ramp, no friction)
  31. 31.🏋️ A 14 kg box is lifted straight up by 4 m. Taking 1 kg to weigh about 10 N, how much work is done, in joules?
  32. 32.🔍 Which is the odd one out? (a) a crane hook block (b) a water tap handle (c) a round doorknob (d) a well winch handle
  33. 33.🧱 Is aluminium an electrical conductor or an insulator? (a) an insulator (b) a conductor
  34. 34.True or false: a temple column is in compression (pushed). (a) True (b) False
  35. 35.⚖️ Along a straight bar, measured from the left end, the effort is at 40 cm, the fulcrum at 10 cm and the load at 50 cm. Which class of lever is it? (a) class 2 (b) class 1 (c) class 3
  36. 36.True or false: a round doorknob is a screw. (a) True (b) False
  37. 37.True or false: a movable pulley needs effort = load. (a) True (b) False
  38. 38.♻️ A school bench is made from 350 recycled plastic bottles. How many benches can be made from 1750 bottles?
  39. 39.True or false: a movable pulley only changes direction. (a) True (b) False
  40. 40.True or false: an electrical engineer wires a new building. (a) True (b) False

Answer key

  1. False
  2. 27
  3. False
  4. True
  5. 2700
  6. lays out a highway
  7. 5
  8. True
  9. True
  10. closer to the pivot
  11. 450
  12. a switch contact
  13. pushes out on its ends
  14. True
  15. non-renewable
  16. 1
  17. measure a long length
  18. 1000
  19. True
  20. choose and draw one
  21. made by engineers
  22. transparent
  23. False
  24. False
  25. a window blind cord
  26. True
  27. class 2
  28. an adult
  29. 29
  30. 500
  31. 560
  32. a crane hook block
  33. a conductor
  34. True
  35. class 3
  36. False
  37. False
  38. 5
  39. False
  40. True

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