Worksheetspp4 Central Heating System Components Quiz
Total questions: 12
Worksheet time: 6mins
What is the purpose of an air separator in a central heating system?
To separate the air in the system and to allow it to go up the vent pipe
To allow close proximity pipework for cold feed and vent pipe
To increase the noise in the system
To reduce the risk of corrosion in the system
how is the the pump fitted to the central heating pipework
At the top of the boiler
At the bottom of the expansion vessel
with the pump flanges
Inside the radiator
What is the purpose of a magnetic system cleaner in a central heating system?
To collect all the corroded iron particles / magnetite
To regulate the temperature of the water
To increase the system pressure
To remove air from the system
What is the function of an inhibitor in a central heating system?
To reduce the efficiency of the system
To regulate the flow of water in the system
To protect against scale and corrosion
To increase the risk of corrosion
What is the purpose of a lock-shield valve in a central heating system?
To release excess pressure in the system
To provide access for system balancing
To remove air from the system
To control the temperature of the water
Why is it important to leave one radiator without a thermostatic radiator valve (TRV) according to Building Regulations?
To allow for easy maintenance of the radiator
To allow control for the room thermostat
To increase the efficiency of the system
To regulate the flow of water in the system
What is the purpose of an automatic bypass valve (ABV) in a central heating system?
To release excess pressure in the system
To allow for easy maintenance of the circulator
To prevent lockout and prolong the pump life by releasing pressure and allowing circulation through the boiler
To remove air from the system
What is the function of a filling loop in a pressurised sealed system?
To fill the system with water from the mains
To release excess pressure in the system
To remove air from the system
To connect the primary flow and return pipes
Where should drain-off valves be fitted in a central heating system?
At the lowest points in the system
At the highest points in the system
At the radiator valves
At the expansion vessel
What is the purpose of a pressure gauge in a central heating system?
To release excess pressure in the system
To indicate the pressure of the system water content
To remove air from the system
To regulate the flow of water in the system
what is the purpose of an auto air vent
to allow air into the system
as a point to fill the system
to regulate system pressure
as a means to release air from high points
what pressure should the expansion vessel be pressurised to
2 bar
3 bar
1 bar
0.5 bar
