T-Level 1.8 Safe working practices

What is the first step in safely isolating a water supply system before maintenance work?

• Open all taps to relieve pressure

• Notify all affected parties of the planned work

• Shut off the main water valve

• Drain the system completely

Which tool is essential for the safe isolation of an electrical supply?

• Adjustable wrench

• Voltage Indicator

• Pipe cutter

• Hammer

Before starting work on gas supply systems, what safety measure is crucial?

• Ventilating the area

• Wearing protective gloves

• Using a gas detector

• All of the above

What is the purpose of locking off a circuit breaker during electrical maintenance?

• To prevent accidental re-energizing of the circuit

• To test the circuit breaker

• To save energy

• To reset the electrical system

When isolating a gas supply, what is the significance of the 'gas isolation valve'?

• It controls the flow of water

• It indicates the level of gas in the system

• It stops the flow of gas to the system

• It measures the pressure of the gas

Why is it important to drain water from a system before maintenance?

• To prevent water damage to tools

• To reduce the risk of electric shock

• To make the system lighter for removal

• To prevent water contamination

What safety equipment should be used when isolating an electrical supply?

• Safety goggles

• Insulated gloves

• Ear protection

• Both A and B

How can you ensure a gas supply is safely isolated before starting work?

• Smelling for gas leaks

• Listening for the flow of gas

• Using a gas detection device

• Turning off the gas meter

What is a common mistake to avoid when isolating electrical supplies?

• Using multiple lockout devices

• Checking for the presence of voltage after turning off the power

• Forgetting to label the isolation point

• Isolating at the device rather than at the main switch

Why is it necessary to notify all affected parties before isolating a utility supply?

• To ensure safety procedures are followed

• To comply with legal requirements

• To prevent accidental use of the system during maintenance

• All of the above