9074/303 pp 5 Gas Pressure Quiz

What is the role of a gas meter regulator?

• Increase pressure to 75 mbar

• Reduce pressure to 21 mbar

• Maintain pressure at 50 mbar

• Increase pressure to 100 mbar

From what pressure does a gas meter regulator reduce the pressure?

• 21 mbar

• 35 mbar

• 50 mbar

• 75 mbar

What is the typical pressure range for natural gas supplies?

• High pressure

• Medium pressure

• Low pressure

• Variable pressure

What material is the flexible diaphragm made from in a simple constant pressure regulator?

• Rubber

• Neoprene

• Plastic

• Silicone

What is the purpose of the weight in a simple constant pressure regulator?

• It connects the valve to the diaphragm.

• It restricts the flow of gas.

• It sets the governor to the required output.

• It allows the diaphragm to move by creating a vent.

What does the breather hole do in a simple constant pressure regulator?

• It connects the valve to the diaphragm.

• It restricts the flow of gas.

• It sets the governor to the required output.

• It allows the diaphragm to move by creating a vent.

What is the role of pressure in the pipework and under the diaphragm?

• To increase gas flow

• To lift the diaphragm and shut the valve

• To decrease gas pressure

• To reverse gas flow

What can cause fluctuations in the regulator?

• Small pressure differences

• Large pressure and flow differences

• Changes in gas type

• Changes in temperature

Which part of the compensated meter regulator is responsible for adjusting spring pressure?

• Diaphragm

• Spring pressure adjuster

• Valve seat

• Impulse pipe

Which part is responsible for housing the spring in the compensated meter regulator?

• Spring housing

• Valve seat

• Diaphragm casing

• Impulse pipe