# INTRODUCTION

In this weeks revision blog we look at Assemblies which are the final Applied Geometry topic on the Leaving Certificate Examination paper. In my opinion, this topic is the easiest on the paper in terms of overall difficulty but can take time to complete. After completing the rest of the DCG Syllabus and Student Assignment there is very little new to learn. The main difficulty students have with Assemblies is visualisation and the problem solving required to complete the Part (b) of the question in the Leaving Certificate Exams.

# SYLLABUS LEARNING OUTCOMES

(Leaving Certificate Design and Communication Graphics Syllabus, 2006)

# WHAT YOU NEED TO KNOW

### ORDINARY LEVEL AND HIGHER LEVEL

- Construct Sectional Assembly Views
- Use hatching conventions correctly
- Know parts which are not hatched
- Bolts
- Nuts
- Washers
- Rivets
- Shafts
- Keys
- Screws
- Pins
- Gear Teeth
- Spokes
- Ribs

- Construct Standard Bolts
- Draw "System of Projection" Symbols
- Use Dimensioning Conventions Effectively

### HIGHER LEVEL

- Solve combined movement of assembled parts using logic and basic constructions

# PRACTICE QUESTIONS

## PRACTICE EXAM QUESTIONS

I am only giving past Leaving Certificate Examination Paper questions for this topic as the textbooks cover the topic in more detail than required. Therefore I would advise using past papers for revision.

### LONG QUESTIONS

- Every Year Section C Question 5
- Part (b)'s are all very important as every year they are different so doing as many as you can will help you problem solve in your Leaving Certificate Examination.

Assemblies are one of the most important questions on the syllabus as it is guaranteed to come up in your examination. Therefore it is vital that you know all you can about the topic so that you can almost guarantee yourself 40+ out of 45 marks in exam.

### REFERENCES

Leaving Certificate Design and Communication Graphics Syllabus. (2006). Dublin: The Stationary Office.

Anderson, D. (2014). *Graphics in Design and Communication: One Volume Edition*. Dublin: Gill & Macmillan.