DRawing Standards and Conventions

What is the use of Continuous thick line?

• Used for visible outlines and edges.

• Used for hidden outlines and edges.

• Used for center lines.

• Used for dimension lines.

Answer explanation

A continuous thick line is primarily used for visible outlines and edges in technical drawings, making it easy to identify the shape and boundaries of objects.

What is the use of Continuous thin line?

• Used for projection, dimensioning, leader lines, hatching and short centre lines.

• Used for indicating hidden edges.

• Used for cutting planes.

• Used for center lines.

Answer explanation

Continuous thin lines are primarily used for projection, dimensioning, leader lines, hatching, and short center lines, making this choice the most comprehensive and accurate for their applications.

What is the use of Continuous thin straight with zigzags line?

• Used for limits of partial or interrupted views and sections if the limit is not an axis.

• Used for dimension lines.

• Used for center lines.

• Used for cutting planes.

Answer explanation

The continuous thin straight line with zigzags is specifically used to indicate limits of partial or interrupted views and sections when the limit does not align with an axis, making it the correct choice.

What is the use of Dashed thin line?

• Used for hidden outlines and edges.

• Used for visible outlines and edges.

• Used for dimension lines.

• Used for center lines.

Answer explanation

Dashed thin lines are specifically used to represent hidden outlines and edges in technical drawings, distinguishing them from visible outlines, dimension lines, and center lines.

What is the use of Chain thin line?

• Used for centre lines, lines of symmetry.

• Used for dimension lines.

• Used for hidden edges.

• Used for cutting planes.

Answer explanation

Chain thin lines are primarily used for centre lines and lines of symmetry in technical drawings, helping to indicate the axis of symmetry and the center of circles or arcs, making them essential for precise design representation.

What is the use of Chain thin double dash line?

• Used for ghost outlines and bend lines.

• Used for dimension lines.

• Used for center lines.

• Used for section lines.

Answer explanation

The chain thin double dash line is specifically used for ghost outlines and bend lines in technical drawings, distinguishing it from other line types like dimension lines, center lines, and section lines.

What is the use of Continuous thin irregular line?

• Used as the limit to an interrupted view when an axis is not present.

• Used to represent the center of circles and arcs.

• Used to indicate hidden edges and surfaces.

• Used to show the path of motion.

Answer explanation

The continuous thin irregular line is used as the limit to an interrupted view when an axis is not present, helping to define boundaries in technical drawings.

What is the use of Chain thin thick at both ends and changes in direction line?

• Used on Cutting planes.

• Used for dimension lines.

• Used for center lines.

• Used for hidden lines.

Answer explanation

The Chain thin thick at both ends is specifically used on cutting planes to indicate the direction of the cut. This distinguishes it from other line types like dimension or center lines.

What is the length of the longest dimension in the diagram?

Answer explanation

To find the longest dimension in the diagram, measure each side and identify the maximum value. The longest dimension is the greatest length among all the sides shown.

Identify the feature labeled as 'Small arrow' in the diagram.

• Small arrow

• Large arrow

• Circle

• Square

Answer explanation

The feature labeled as 'Small arrow' is directly identified in the diagram. It is specifically referred to as 'Small arrow' in the answer choices, making it the correct selection.