2020 L2 Evidence for Dimensional measuring equipment

  US 4435 v8  Level 2 Credits 3 

Your name: Joshua Irwin

NSI Number:0132439384

People credited with this unit standard are able to – select; use; and care for engineering dimensional measuring equipment. 

Examples of engineering dimensional measuring equipment are – vernier callipers; internal, external, and depth micrometers; dial test indicator (DTI); height gauges; steel rules.

To pass this assessment I need to provide evidence that I can  select  the correct equipment in accordance with the geometry of the object to be measured, likely magnitude of dimensions, and required accuracy. 

I also need to show that I can carry out equipment checks before use and any faults are reported, examples are – deformation, breakages, stickiness, not zeroing, missing parts, expired calibration. 

My evidence to support  my assessment booklet will need to show a micrometer; vernier callipers; and two other items of dimensional measuring equipment from the list above.

My evidence of using Dimensional measuring equipment.

Please include  evidence of you using the dimensional measuring equipment

Vernier Caliper What are you measuring ? What is the accuracy and range of the device? What was the dimension you recorded? How did you check it?	to find and mark the of my gear knob  Accuracy:0.04mm and 0.02mm  range:0 to 12"/300mm
Micrometer What are you measuring ? What is the accuracy and range of the device? What was the dimension you recorded? How did you check it?	used to measure a bolt  pitch:1.25mm Across Flats:13mm
Vernier Height Gauge  What are you measuring ? What is the accuracy and range of the device? What was the dimension you recorded? How did you check it?	I measured the steal plates to located where i need to cut around  range:0 to 200 accuracy:0.02mm or 0.03mm
Steel Rule  What are you measuring ? What is the accuracy and range of the device? What was the dimension you recorded? How did you check it?	i used this after using the Vernier height gauge i use this to show where i need to center punch

What have I learnt? How the micrometer works

What was the most difficult tool to use and why? micrometer and the Vernier height gauge

What did I enjoy? not to sure

What would I do differently next time? look for better information if possible or ask the teacher

Questions for future reference.??

Konigsberg bridge

 

Leonhard Euler was one of math's most pioneering thinkers, establishing a career as an academy scholar and contributing greatly to the fields of geometry, trigonometry and calculus, among many others

The Konigsberg bridge has 7 bridges and has 4 odd nodes making it impossible to cross the bridges once so the network is not transferable 

On August 26, 1735, Euler presents a paper containing the solution to the Konigsberg bridge problem.  He addresses both this specific problem, as well as a general solution with any number of landmasses and any number of bridges.  This paper, called ‘Solutio problematis ad geometriam situs pertinent is,’ was later published in 1741 [Hopkins, 2].  Euler’s paper is divided into twenty-one numbered paragraphs, and in what follows, a simplified version of Euler’s paragraphs will be presented.

information from: https://www.maa.org/press/periodicals/convergence/leonard-eulers-solution-to-the-konigsberg-bridge-problem 

what is a node:

A node or a vertex of a network is one of the objects that are connected together. The connections between the nodes are called edges or links. A network with 10 nodes or a vertices and 11 edges (or links.

is the Konigsberg bridge transferable on its network:

The Konigsberg Bridges are not transferable only a even number of bridges can give you the right results.

My Question:

Why are there only 7 bridges and why is it so important?