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Scale Drawing Worksheet

Engineering lesson 23: Measuring and scale drawings · Set 57 · 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.

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  1. 1.📐 On a plan, 1 cm stands for 20 m. A wall is 10 cm long on the plan. How long is the real wall, in metres?
  2. 2.📐 On a plan, 1 cm stands for 20 m. A wall is 18 cm long on the plan. How long is the real wall, in metres?
  3. 3.📐 On a plan, 1 cm stands for 10 m. A wall is 15 cm long on the plan. How long is the real wall, in metres?
  4. 4.📐 A beam is 610 cm long. How long is it in metres? =
  5. 5.📐 On a plan, 1 cm stands for 10 m. A real bridge is 30 m long. How long is it on the plan, in centimetres?
  6. 6.📐 A beam is 910 cm long. How long is it in metres? =
  7. 7.📐 A beam is 510 cm long. How long is it in metres? =
  8. 8.📐 How many metres are in 1 kilometre? (a) 10000 (b) 100 (c) 1000 (d) 10
  9. 9.📐 On a plan, 1 cm stands for 20 m. A wall is 17 cm long on the plan. How long is the real wall, in metres?
  10. 10.📐 A beam is 960 cm long. How long is it in metres? =
  11. 11.📐 A beam is 190 cm long. How long is it in metres? =
  12. 12.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 3 cm long in the drawing. How long is the real car, in centimetres?
  13. 13.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
  14. 14.📐 How many millimetres are in 1 centimetre? (a) 10 (b) 100 (c) 5 (d) 1000
  15. 15.📐 A beam is 830 cm long. How long is it in metres? =
  16. 16.📐 A beam is 620 cm long. How long is it in metres? =
  17. 17.📐 On a plan, 1 cm stands for 10 m. A wall is 9 cm long on the plan. How long is the real wall, in metres?
  18. 18.📐 A beam is 220 cm long. How long is it in metres? =
  19. 19.📐 On a plan, 1 cm stands for 5 m. A real bridge is 75 m long. How long is it on the plan, in centimetres?
  20. 20.📐 A beam is 940 cm long. How long is it in metres? =
  21. 21.📐 On a plan, 1 cm stands for 20 m. A wall is 14 cm long on the plan. How long is the real wall, in metres?
  22. 22.📐 On a plan, 1 cm stands for 2 m. A wall is 6 cm long on the plan. How long is the real wall, in metres?
  23. 23.📐 Why do engineers use scale drawings? (a) to hide sizes (b) big things fit on paper (c) to make them pretty (d) to save ink only
  24. 24.📐 A beam is 580 cm long. How long is it in metres? =
  25. 25.📐 A beam is 350 cm long. How long is it in metres? =
  26. 26.📐 A beam is 890 cm long. How long is it in metres? =
  27. 27.📐 A beam is 300 cm long. How long is it in metres? =
  28. 28.📐 On a plan, 1 cm stands for 2 m. A real bridge is 22 m long. How long is it on the plan, in centimetres?
  29. 29.📐 On a plan, 1 cm stands for 2 m. A real bridge is 4 m long. How long is it on the plan, in centimetres?
  30. 30.📐 On a plan, 1 cm stands for 10 m. A real bridge is 160 m long. How long is it on the plan, in centimetres?
  31. 31.📐 How many centimetres are in 1 metre? (a) 60 (b) 10 (c) 100 (d) 1000
  32. 32.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
  33. 33.📐 On a plan, 1 cm stands for 20 m. A real bridge is 280 m long. How long is it on the plan, in centimetres?
  34. 34.📐 On a plan, 1 cm stands for 20 m. A wall is 16 cm long on the plan. How long is the real wall, in metres?
  35. 35.📐 On a plan, 1 cm stands for 20 m. A real bridge is 400 m long. How long is it on the plan, in centimetres?
  36. 36.📐 A beam is 820 cm long. How long is it in metres? =
  37. 37.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 5 cm long in the drawing. How long is the real car, in centimetres?
  38. 38.📐 A beam is 320 cm long. How long is it in metres? =
  39. 39.📐 On a plan, 1 cm stands for 5 m. A real bridge is 35 m long. How long is it on the plan, in centimetres?
  40. 40.📐 A model car is drawn so that 1 cm stands for 30 cm. The car is 9 cm long in the drawing. How long is the real car, in centimetres?

Answer key

  1. 200
  2. 360
  3. 150
  4. 6.1
  5. 3
  6. 9.1
  7. 5.1
  8. 1000
  9. 340
  10. 9.6
  11. 1.9
  12. 30
  13. 440
  14. 10
  15. 8.3
  16. 6.2
  17. 90
  18. 2.2
  19. 15
  20. 9.4
  21. 280
  22. 12
  23. big things fit on paper
  24. 5.8
  25. 3.5
  26. 8.9
  27. 3
  28. 11
  29. 2
  30. 16
  31. 100
  32. 150
  33. 14
  34. 320
  35. 20
  36. 8.2
  37. 200
  38. 3.2
  39. 7
  40. 270

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