Gas Regulator Quiz

What is the maximum inlet pressure that a domestic regulator can handle?

• 21 mbar

• 6 m³/h

• 75 mbar

• 6 mbar

How much volume of gas can the regulator pass per hour?

• 21 m³/h

• 75 m³/h

• 6 m³/h

• 6 mbar

What can be a sign of wear and tear in the diaphragm of the regulator?

• A change in the color of the regulator

• The regulator becoming hot to the touch

• Gas escaping through the breather hole

• A decrease in the volume of gas passed per hour

What affects the diaphragm in the regulator?

• The color of the regulator

• Installation pressure

• The temperature of the gas

• The size of the breather hole

What happens when all appliances are turned off in a system with a simple constant pressure regulator?

• The pressure within the installation pipework increases and the diaphragm lifts the valve to allow gas flow.

• The pressure within the installation pipework decreases and the valve shuts to stop gas flow.

• The pressure within the installation pipework remains constant and the valve remains open.

• The pressure within the installation pipework increases and the valve shuts to stop gas flow.

How is the set point of a simple constant pressure regulator determined?

• By the pressure of the gas in the inlet.

• By the weight on the diaphragm.

• By the flow rate of the gas.

• By the temperature of the gas.

What is a limitation of a simple constant pressure regulator?

• It can only operate when installed vertically.

• It is easily adjustable.

• It can only operate when installed horizontally and is not easily adjustable.

• It is unaffected by large differences in pressure.

How does a compensated meter regulator maintain constant pressure?

• By using a single diaphragm that reacts to gas flow rate changes.

• By incorporating a secondary diaphragm that cancels out effects of inlet pressure and valve weight.

• By using a weight to adjust the pressure on the diaphragm.

• By manually adjusting the tension on the valve stem.

How can the pressure be adjusted in a compensated meter regulator?

• By changing the weight on the diaphragm.

• By adjusting the breather hole size.

• By increasing or decreasing the tension on the spring.

• By rotating the valve stem.

What does the label 'A' refer to in the diagram?

• Cover cap with breather

• Diaphragm casing

• Valve seat

• Body