3. Natural Gas and LPG Supplies

• City and Guilds
• NG and LPG Networks
• Further Education (Key Stage 5)

Natural Gas and LPG Supplies

This lesson is intended to be a supplement and revision aid. 

It is to be used together with your in-class lesson notes and gas book.

Completion of this lesson adds to your Guided Learning Hours.

3GLH

Is a household appliance considered to be “upstream” or “downstream” from the meter?

1. Upstream
2. Downstream

What are the minimum and maximum pressures for a low pressure installation

1. 75mbar-2bar
2. 21-75mbar
3. 2-7bar
4. 19-21mbar

When you take the Standing and Working pressures of a system what component are you testing for accuracy?

1. The Meter
2. The Appliance
3. The Pipe Sizing
4. The Regulator

At what pressure does LPG get delivered into a property

1. 37mbar
2. 75mbar
3. 21mbar
4. 2bar

What is the working range of gas pressure in a Low Pressure installation?

1. 21mbar
2. 75mbar-2bar
3. 19-23mbar
4. 21-75mbar

Combining the maximum pressure absorption across the meter AND across the pipework, what is the minimum allowed pressure arriving at an appliance?

1. 14mbar
2. 19mbar
3. 15mbar
4. 21mbar

What is the minimum accuracy required in a U Gauge

1. 1mbar
2. 10mbar
3. +or- 2mbar
4. 0.5mbar

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.