Gas Installation Quiz

What is the primary purpose of a 'U' gauge in gas installations?

• To measure gas flow rate

• To measure gas pressure

• To detect gas leaks

• To regulate gas temperature

Which of the following is NOT a common name for the 'U' gauge?

• Manometer

• Water Gauge

• Pressure Regulator

• 'U' Gauge

What is the minimum accuracy requirement for water gauges of this type?

• 0.1 mbar

• 0.25 mbar

• 0.5 mbar

• 1.0 mbar

When using an electronic gauge for tightness testing, how is "No Perceptible Movement" interpreted if the display is accurate to 2 decimal points?

• 0.10 mbar

• 0.20 mbar

• 0.25 mbar

• 0.50 mbar

Why should detergent-based washing up liquid not be used to test joints?

• It's not sensitive enough to detect small leaks

• It can cause corrosion to pipe and jointing compounds

• It's too expensive for regular use

• It leaves a residue that affects gas flow

What is the maximum lock-up pressure for a low-pressure installation (less than 75 mbar)?

• 18.5 mbar

• 23 mbar

• 30 mbar

• 75 mbar

What does the working pressure of an installation confirm about the meter regulator?

• It can regulate pressure between 18.5 and 23 mbar

• It can regulate pressure between 20 and 25 mbar

• It can regulate pressure between 25 and 30 mbar

• It can regulate pressure between 30 and 35 mbar

Which of the following is NOT a criterion for an installation to fall under IGEM/UP/1B?

What is the internal meter volume for a U16 meter?

• 0.0024 m³

• 0.008 m³

• 0.025 m³

• 0.035 m³

In estimating installation volume, what percentage is added to account for fittings?

• 5%

• 10%

• 15%

• 20%