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Scale Drawing Worksheet

Engineering lesson 23: Measuring and scale drawings · Set 75 · 40 questions
TalentJR

Engineer's tip (Multiply to grow, divide to shrink): Real length = drawing length × what 1 cm stands for. Drawing length = real length ÷ what 1 cm stands for. Units: 1 m = 100 cm · 1 cm = 10 mm · 1 km = 1000 m.

NameDateTime takenScore ___ / 40
  1. 1.📐 Why do engineers use scale drawings? (a) to make them pretty (b) to hide sizes (c) to save ink only (d) big things fit on paper
  2. 2.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 12 cm long in the drawing. How long is the real car, in centimetres?
  3. 3.📐 On a plan, 1 cm stands for 20 m. A wall is 5 cm long on the plan. How long is the real wall, in metres?
  4. 4.📐 On a plan, 1 cm stands for 20 m. A real bridge is 380 m long. How long is it on the plan, in centimetres?
  5. 5.📐 On a plan, 1 cm stands for 2 m. A real bridge is 16 m long. How long is it on the plan, in centimetres?
  6. 6.📐 On a plan, 1 cm stands for 20 m. A wall is 3 cm long on the plan. How long is the real wall, in metres?
  7. 7.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 3 cm long in the drawing. How long is the real car, in centimetres?
  8. 8.📐 On a plan, 1 cm stands for 2 m. A real bridge is 34 m long. How long is it on the plan, in centimetres?
  9. 9.📐 How many centimetres are in 1 metre? (a) 10 (b) 60 (c) 100 (d) 1000
  10. 10.📐 On a plan, 1 cm stands for 5 m. A wall is 9 cm long on the plan. How long is the real wall, in metres?
  11. 11.📐 How many metres are in 1 kilometre? (a) 10 (b) 10000 (c) 100 (d) 1000
  12. 12.📐 A beam is 890 cm long. How long is it in metres? =
  13. 13.📐 A beam is 960 cm long. How long is it in metres? =
  14. 14.📐 A beam is 160 cm long. How long is it in metres? =
  15. 15.📐 On a plan, 1 cm stands for 5 m. A real bridge is 25 m long. How long is it on the plan, in centimetres?
  16. 16.📐 A beam is 610 cm long. How long is it in metres? =
  17. 17.📐 A beam is 470 cm long. How long is it in metres? =
  18. 18.📐 A beam is 180 cm long. How long is it in metres? =
  19. 19.📐 A beam is 410 cm long. How long is it in metres? =
  20. 20.📐 How many millimetres are in 1 centimetre? (a) 5 (b) 1000 (c) 100 (d) 10
  21. 21.📐 On a plan, 1 cm stands for 10 m. A wall is 13 cm long on the plan. How long is the real wall, in metres?
  22. 22.📐 A beam is 240 cm long. How long is it in metres? =
  23. 23.📐 On a plan, 1 cm stands for 20 m. A real bridge is 320 m long. How long is it on the plan, in centimetres?
  24. 24.📐 On a plan, 1 cm stands for 10 m. A real bridge is 20 m long. How long is it on the plan, in centimetres?
  25. 25.📐 On a plan, 1 cm stands for 10 m. A real bridge is 100 m long. How long is it on the plan, in centimetres?
  26. 26.📐 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?
  27. 27.📐 A beam is 760 cm long. How long is it in metres? =
  28. 28.📐 A beam is 540 cm long. How long is it in metres? =
  29. 29.📐 On a plan, 1 cm stands for 5 m. A real bridge is 90 m long. How long is it on the plan, in centimetres?
  30. 30.📐 A beam is 710 cm long. How long is it in metres? =
  31. 31.📐 On a plan, 1 cm stands for 2 m. A wall is 4 cm long on the plan. How long is the real wall, in metres?
  32. 32.📐 A beam is 480 cm long. How long is it in metres? =
  33. 33.📐 A beam is 260 cm long. How long is it in metres? =
  34. 34.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 15 cm long in the drawing. How long is the real car, in centimetres?
  35. 35.📐 On a plan, 1 cm stands for 10 m. A wall is 17 cm long on the plan. How long is the real wall, in metres?
  36. 36.📐 A beam is 490 cm long. How long is it in metres? =
  37. 37.📐 On a plan, 1 cm stands for 20 m. A wall is 7 cm long on the plan. How long is the real wall, in metres?
  38. 38.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
  39. 39.📐 On a plan, 1 cm stands for 2 m. A real bridge is 26 m long. How long is it on the plan, in centimetres?
  40. 40.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?

Answer key

  1. big things fit on paper
  2. 120
  3. 100
  4. 19
  5. 8
  6. 60
  7. 90
  8. 17
  9. 100
  10. 45
  11. 1000
  12. 8.9
  13. 9.6
  14. 1.6
  15. 5
  16. 6.1
  17. 4.7
  18. 1.8
  19. 4.1
  20. 10
  21. 130
  22. 2.4
  23. 16
  24. 2
  25. 10
  26. 20
  27. 7.6
  28. 5.4
  29. 18
  30. 7.1
  31. 8
  32. 4.8
  33. 2.6
  34. 150
  35. 170
  36. 4.9
  37. 140
  38. 220
  39. 13
  40. 50

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