9074/303 pp 6 Gas System Pressure Quiz

Which of the following factors can affect pressure within a gas system?

• Color of the gas

• Leaks

• Brand of the gas

• Type of container

How does pipe resistance affect a gas system?

• It increases the temperature

• It affects the pressure

• It changes the gas type

• It has no effect

Which factor related to the physical dimensions of the system affects gas pressure?

• Pipe length

• Color

• Brand

• Type of gas

Under what conditions is the DMIP experienced?

• Normal conditions

• Fault conditions

• Emergency conditions

• Maintenance conditions

What is the role of the gas meter in a gas installation?

• To regulate gas flow

• To measure gas consumption

• To increase gas pressure

• To decrease gas pressure

What happens to the standing pressure in an installation when its volume changes?

• It remains constant.

• It is unaffected by volume changes.

• It is affected by its volume.

• It decreases regardless of volume changes.

What happens to the pressure when the contents of a gas system become more dense?

• The pressure increases.

• The pressure decreases.

• The pressure remains constant.

• The pressure becomes zero.

What is the effect of temperature on the density of a gas?

• Temperature has no effect.

• Higher temperature increases density.

• Higher temperature decreases density.

• Temperature doubles the density.

What happens to the pressure loss if the length of the pipe is doubled?

• It is halved.

• It remains the same.

• It is doubled.

• It is tripled.

If the diameter of a pipe is halved, by how many times does the pressure loss increase?

• 16 times

• 32 times

• 64 times

• 8 times