Engineering Drawing Quiz

What is the purpose of orthographic projection in engineering drawing?

• To create a 4D representation of an object

• To add color to engineering drawings

• To represent a 3D object in 2D engineering drawings

• To make the drawing more difficult to understand

Explain the difference between first angle projection and third angle projection.

• First angle projection is used for 2D drawings, while third angle projection is used for 3D drawings.

• First angle projection is used for small objects, while third angle projection is used for large objects.

• First angle projection is more accurate than third angle projection.

• First angle projection is commonly used in Europe and Asia, while third angle projection is commonly used in North America.

How is an object represented in an orthographic projection?

• Multiple 2D views from different directions

• A single 3D view from one direction

• A series of 3D views from different angles

• A combination of 3D and 2D views

What is the significance of geometric dimensioning and tolerancing in engineering drawing?

• It is used for artistic purposes only

• It is only applicable to electrical engineering

• It specifies the allowable variations in form and size of the part.

• It has no significance in engineering drawing

Representative fraction in the scales is the ___________________

• ratio of the length in drawing to the actual length

• ratio of the actual length to the length in drawing

• reciprocal of actual length

• square of the length in drawing

What are the basic principles of engineering drawing standards?

• Precision, neatness, colorfulness, and variety

• Clarity, accuracy, uniformity, and completeness

• Complexity, ambiguity, inconsistency, and incompleteness

• Creativity, flexibility, speed, and innovation

What are the different types of lines used in engineering drawing and their significance?

• Solid lines, dotted lines, wavy lines, curved lines

• Vertical lines, horizontal lines, diagonal lines, parallel lines

• Object lines, hidden lines, center lines, dimension lines, and extension lines

• Thick lines, thin lines, broken lines, jagged lines

Explain the importance of following ISO standards in engineering drawing.

• Following ISO standards in engineering drawing has no impact on the design and manufacturing process

• ISO standards in engineering drawing are only important for large companies, not for small businesses

• Consistency, accuracy, and quality are not important in engineering drawing

• Following ISO standards in engineering drawing helps to ensure consistency, accuracy, and quality in the design and manufacturing process.

What are the steps involved in the projection of a point in engineering drawing?

• Measuring the distance from the point to the nearest object

• Drawing random lines from the point to the views

• Determining the location of the point in the object, selecting the appropriate views for projection, drawing projection lines from the point to the views, and marking the projected points on the views.

• Guessing the location of the point on the object

How is the projection of a point different from the projection of a line in engineering drawing?

• The projection of a point is a 3D shape, while the projection of a line is a 2D shape.

• The projection of a point is a single point, while the projection of a line is a line segment.

• The projection of a point is a line, while the projection of a line is a point.

• The projection of a point is a curve, while the projection of a line is a circle.