Scaling in Drafting and Sketching

What does a scale ratio of 1:50 mean in a drawing?

• 1 unit on the drawing represents 50 units in real life.

• 50 units on the drawing represent 1 unit in real life.

• 1 unit on the drawing represents 1 unit in real life.

• 50 units on the drawing represent 50 units in real life.

The two rectangles are scale drawings. What is the measurement of x?

• 21
• 1.25
• 20
• 4

If a room is 10 meters long in real life, how long will it be on a drawing with a scale of 1:100?

• 0.1 meters

• 1 meter

• 10 meters

• 100 meters

Which of the following scale ratios would make an object appear larger on the drawing than in real life?

• 1:1

• 1:2

• 2:1

• 1:10

You have a drawing of a car that is 4 cm long. If the scale is 1:250, what is the actual length of the car?

• 1 meter

• 10 meters

• 100 meters

• 25 meters

In a hand sketch, a tree is drawn 5 cm tall. If the scale is 1:20, how tall is the tree in real life?

• 1 meter

• 10 meters

• 100 meters

• 20 meters

Which of the following is NOT a practical application of scaling in drafting?

• Creating a model of a building

• Designing a circuit board

• Writing a novel

• Mapping a city

The tallest tree in the world is 370 feet tall. which of the following illustrations shows the tree drawn correctly to scale?

• 
• 
• 
• 

If a scale drawing of a park is made at a scale of 1:2000, and the length of the park on the drawing is 3 cm, what is the actual length of the park?

• 0.6 meters

• 6 meters

• 60 meters

• 600 meters

A model airplane is built at a scale of 1:50. If the wingspan of the model is 20 cm, what is the wingspan of the actual airplane?

• 1 meter

• 10 meters

• 100 meters

• 50 meters