WorksheetsHeating System Components part 3
Total questions: 14
Worksheet time: 7mins
What is the purpose of the lock shield valve in a heating system?
To control the temperature of a single radiator
To create a watertight seal on the threads
To balance the system when commissioned
To release excess pressure in the system
Why is it important to balance the heating system?
To ensure uniform heating of radiators
To allow the manual release of air
To control the temperature of a single radiator
To create a watertight seal on the threads
How can the index radiator be identified in a heating system?
By measuring the temperature difference between the flow and return pipework
By using a radiator key to open the valves
By feeling which radiator heats up first
By counting the number of radiators in the system
What is the purpose of a radiator key in a heating system?
To control the temperature of a single radiator
To allow the manual release of air
To make up a radiator
To create a watertight seal on the threads
What is the function of a bleed key in a heating system?
To balance the system when commissioned
To allow the manual release of air
To create a watertight seal on the threads
To control the temperature of a single radiator
Why are thermostatic radiator valves (TRVs) required to be fitted on systems according to Building Regulations?
To control the temperature of a single radiator
To allow the manual release of air
To balance the system when commissioned
To ensure uniform heating of radiators
What is the purpose of an automatic bypass valve in a heating system?
To control the temperature of a single radiator
To create a watertight seal on the threads
To allow the manual release of air
To prolong the pump life by releasing system pressure
What is the function of a filling loop in a pressurised sealed system?
To allow the manual release of air
To control the temperature of a single radiator
To provide a temporary connection between the incoming mains and the central heating system
To create a watertight seal on the threads
What is the purpose of an expansion vessel in a sealed system?
To control the temperature of a single radiator
To take up the expansion of heated water
To allow the manual release of air
To create a watertight seal on the threads
Where are automatic air release valves commonly found in a heating system?
Inside the lock shield valve
Inside the boiler
Inside the radiator
Inside the expansion vessel
What is the purpose of a thermostatic radiator valve (TRV) remote sensor?
To operate if long curtains interfere with the operation of the phial
To create a watertight seal on the threads
To allow the manual release of air
To control the temperature of a single radiator
What is the function of a decorators cap in a heating system?
To allow the manual release of air
Used to seal off radiator valves in order for a radiator to be removed for the wall behind to be decorated.
To control the temperature of a single radiator
To fit over the head of a TRV when a radiator is removed for decorating
Why is it important to fit a TRV on the radiator in the same room as the room stat?
To ensure uniform heating of radiators
To allow the manual release of air
To control the temperature of a single radiator
To comply with Building Regulations
What is the purpose of an ABV in a modern heating system?
To create a watertight seal on the threads
To allow the manual release of air
To control the temperature of a single radiator
To extend the pump life by releasing system pressure
