3º ESO - Graphic Representation

One of the edges of an object measures 75 cm and in the drawing it measures 15 cm. We can say this object has been drawn to a scale of...

• 5:1

• 1:5

• 50:1

• 0.2

We want to draw a plot of land measuring 3,000 × 900 m. What will the drawing measurements be if we use a scale of 1:50,000?

• 60 × 18 mm

• 60 × 18 m

• 16.6 × 55.5 mm

• 16.6 × 55.5 m

The primary views of an object are:

• The front elevation, the plan and the left or right elevation

• The front elevation, the plan and the right elevation

• The front elevation, the plan, the left elevation, the right elevation, the rear elevation and the bottom plan

• The front elevation and the plan

In cavalier perspective...

• The axes can be drawn with any angle of separation between them, as long as it is not the same.

• All three axes (X, Y, Z) are separated by the same angle: 120 degrees.

• The Y and Z axes form 90-degree angles and the Z axis forms a 120-degree angle.

• Two axes form a 90-degree angle with each other and two angles (135 degrees each) with the third axis.

In isometric perspective...

• The axes can be drawn with any angle of separation between them, as long as it is not the same.

• All three axes (X, Y, Z) are separated by the same angle: 120 degrees.

• The Y and Z axes form 90-degree angles and the Z axis forms a 120-degree angle.

• Two axes form a 90-degree angle with each other and two angles (135 degrees each) with the third axis.

Indicate which of the following statements about dimensioning is true:

• Heavy lines are used for visible outlines.

• Fine lines are used for dimension lines and auxiliary dimension lines.

• Fine dashed lines are used for hidden outlines.

• All the above answers are true.

Indicate which of the following statements is true:

• We can scale drawings in three different ways (scaling down, scaling up and full scale) according to the proportion between the object and the drawing.

• We can scale drawings in three different ways (scaling down, scaling up and full scale). But normally we only use scaling up and scaling down.

• We can scale drawings in two different ways (scaling down and scaling up).

• All the above answers are false.

Which of the following figures is correctly dimensioned?

• The first one

• The second one

• Both

• None of them

In the figure...

• A is a dimension line end point and B is an auxiliary dimension line.

• A is an auxiliary dimension line and B is a dimension line end point.

• A is a dimension line and B is an auxiliary dimension line.

• A is an auxiliary dimension line and B is a dimension line.

Indicate which of the following statements is true:

• In cavalier perspective, the figure is represented with its actual size on the X and Y axes.

• In cavalier perspective, a reduction coefficient is applied to the Z axis.

• In isometric perspective, a reduction coefficient of 4:5 it applied to the three axes but, as this is equal to the three axes, we can produce the drawing without reduction and it will remain proportional.

• All the above answers are true.