17. Gas Rates

• Gas Rates
• Further Education (Key Stage 5)

Gas Rates

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.

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.

10:05

What component are we checking when we carry out a Gas Rate Test

1. The Meter Regulator
2. The Appliance Regulator
3. The Burner Injectors
4. The Pipework

10:05

If there is a leak in the pipework and you carry out a gas rate test then the test will show that the appliance is

1. Using too much gas
2. Not using enough gas

10:05

When you test the Working Pressure of the system using a cooker, how many burners must you light?

1. 1
2. 2
3. 3
4. All of them

11:54

If there is insufficient pressure when you test the working pressure at the meter where would the fault be?

1. On the ECV
2. On the Regulator
3. Dented pipework prior to the appliance
4. At the injectors inside the appliance

11:54

If there is insufficient pressure when you test the operating pressure at the appliance where would the fault be?

1. The ECV
2. The Meter Regulator
3. Dented Pipework before the appliance
4. The injectors inside the appliance

18:43

What would be wrong with the gas fire if it was out of tolerance?

1. Injector hole too small
2. Injector hole too big

18:46

A 13 kw gas fire returns a gas rate of 11.5kw.
Is it working correctly within the tolerances allowed?

1. Yes
2. No

18:46

A 25Kw boiler returns a gas rate of 26.85Kw.
Is this working correctly within the allowed limits?

1. Yes
2. No

21:19

Using an imperial meter, an 11kw Net appliance takes 1 minute and 32 seconds to complete a revolution. What Gas Rate has it produced?

1. 11.9kw
2. 10.83kw
3. 11kw
4. 8.3Kw

21:19

A 14kw gross boiler takes 1 minute and 15 seconds for 1 revolution.
Is it working correctly within the tolerance?

1. Yes
2. No

24:01

A boiler uses 0.067 m3 of gas in 2 minutes.
What is it's gross gas rate?

1. 21.64
2. 22.06
3. 19.67
4. 19.06

24:02

A boiler uses 0.067 m3 of gas in 2 minutes.
What is it's net gas rate?

1. 21.67
2. 19.67
3. 22.05
4. 19.44