Gas pipework knowledge check 1 (powerpoint 1-4)

Which regulation states that gas operatives must not damage the building fabric when installing pipework?

• Regulation 18

• Regulation 20

• Regulation 22

• Regulation 35

What is the purpose of conducting a tightness test before installation?

• To check for water leaks

• To ensure the pipework is clean

• To confirm the system is sound and leak-free

• To verify the pipe diameter

What tool is recommended to detect stray electrical currents in gas pipework?

• Multimeter

• Clamp meter

• Non-contact single pole voltage detector

• Continuity tester

Why should drawings be consulted before installation?

• To estimate the cost

• To locate areas subject to dampness or mechanical damage

• To determine the color of the pipe

• To check the weather forecast

What must be used to maintain electrical continuity when removing a gas pipe section?

• Plastic push-fit fitting

• Temporary bonding equipment

• Isolation valve

• Dust cap

What is the correct action when leaving open-ended gas pipework unattended?

• Leave it open if the valve is shut

• Plug or cap it with an appropriate fitting

• Cover it with tape

• Mark it with a warning sign

Which of the following is NOT permitted on gas installations?

• Compression fittings

• Capillary fittings

• Plastic push-fit fittings

• Press-fit fittings

According to Technical Bulletin 118, what is a valid method of ensuring safe electrical isolation?

• Turning off the appliance

• Posting warning notices and using locking devices

• Removing the appliance plug

• Using a plastic cover

Which standard specifies the installation of low-pressure gas pipework up to 35mm in domestic premises?

• BS 1387

• BS EN 1057

• BS 6891:2015

• BS EN 751-2

What is the correct method for applying PTFE tape to steel pipe threads?

• Counter-clockwise with 25% overlap

• Clockwise with 50% overlap

• Clockwise with 25% overlap

• Counter-clockwise with 50% overlap