Gas Meter Installation Quiz

Which of the following is NOT a consideration when installing a gas meter?

• The meter must be secure and not move

• The connections should not be strained

• The meter should be fitted in a corrosive atmosphere

• The meter should not compromise fire escape routes

What is the maximum pipe size a domestic gas engineer can work on?

• 22mm

• 28mm

• 32mm

• 35mm

When installing a gas meter, how far from electrical wiring or switch gear should it be?

• 15 mil

• 25 mil

• 100 mil

• 150 mil

In a medium pressure gas installation, where should the earth bonding NOT be located?

• Through the bottom of the meter box

• Inside the property

• Following the pipework

• Through the back of the meter box

What is the purpose of the Emergency Control Valve (ECV)?

• To regulate gas pressure

• To measure gas consumption

• To isolate the gas supply

• To prevent gas leaks

What is the maximum permissible drop for a tightness test on a G4 meter with pipe work less than or equal to 28mm?

• 1 millibar

• 2 millibars

• 3 millibars

• 4 millibars

What is the purpose of the diversity factor when sizing a gas meter?

• To account for simultaneous appliance use

• To convert kilowatts to megajoules

• To calculate the calorific value of gas

• To determine the meter's maximum flow rate

What is the correct formula to convert kilowatts to megajoules?

• Kilowatts x 2.4

• Kilowatts x 3.6

• Kilowatts ÷ 3.6

• Kilowatts ÷ 2.4

What is the diversity factor for a combi boiler?

• 0.6

• 0.8

• 1.0

• 1.2

When sizing a gas meter, what value do you divide the total megajoules by?

• The diversity factor

• The calorific value of natural gas

• The total kilowatt rating of appliances

• The meter's maximum flow rate