Session 1.14 PowerPoint Engineering Drawings

Question 1

What is the purpose of an engineering drawing?

Answer 1

To graphically represent physical objects and communicate projects or products in engineering.

Question 2

Where is the title block usually located on an engineering drawing?

Answer 2

In the bottom right-hand corner.

Question 3

Name three pieces of information included in a title block.

Answer 3

• Author
• Date
• Drawing number

Other possible answers: title, scale, material, projection, system of measurement.

Question 4

What are the two main systems of measurement used in engineering drawings?

Answer 4

• Metric
• Imperial

Question 5

How do you convert millimetres to inches?

Answer 5

Divide by 25.4.

Question 6

How do you convert inches to millimetres?

Answer 6

Multiply by 25.4.

Question 7

Give one benefit of the metric system in engineering drawings.

Answer 7

It is a worldwide standard, easy to convert (base 10), and avoids errors in international trade.

Question 8

Give one benefit of the imperial system in engineering drawings.

Answer 8

Easier to visualise and based on base 12, which is divisible by 1, 2, 3, 4, 6, and 12.

Question 9

What is meant by the scale on an engineering drawing?

Answer 9

The ratio between the size on paper and the actual size of the object in reality.

Question 10

Why is applying drawing conventions correctly important?

Answer 10

To ensure drawings can be read and interpreted accurately across engineering disciplines.