6035CHPPT1Q3

In a one pipe gravity system, what is a significant drawback due to the system's design?

• Each radiator cools down progressively

• All radiators heat up unevenly

• The system requires frequent maintenance

• The system is expensive to install

Which of the following is an advantage of a two pipe semi gravity system?

• Controlled room temperature

• All heat emitters reach the same temperature

• Low installation cost

• Compliance with Building Regulations part L

What is the primary control addition in the C plan two pipe semi gravity system?

• Room stat

• Boiler cycling control

• Zone control on the hot water

• Cylinder thermostat

Which heating system is specifically designed for solid fuel boilers?

• C plan two pipe semi gravity

• Fully pumped systems

• Two pipe semi gravity with heat sink

• Sealed system

What is a notable advantage of fully pumped systems over gravity systems?

• Slower heat-up times

• Limited fuel options

• Better control and design

• Dependence on gravity for circulation

Which system utilizes a three port mid-position valve?

• Fully pumped mid-position valve – Y plan system

• Fully pumped two, two port valves – S plan system

• One pipe gravity system

• Two pipe semi gravity with heat sink

What is the purpose of the automatic bypass valve in central heating systems?

• To regulate water temperature

• To prevent lockout in the boiler

• To control system pressure

• To separate flow and return pipes

What issue does aeration cause in central heating systems?

• System overheating

• Increased efficiency

• Corrosion and sludge buildup

• Reduced circulation

What distinguishes a sealed system from an open vented system in central heating?

• Incorporation of a bypass valve

• Usage of a double check valve

• Presence of a sealed expansion vessel

• Requirement of frequent maintenance

What safety feature prevents back siphonage of central heating water into mains water in a sealed system?

• Automatic bypass valve

• Detachable filling loop

• Double check valve

• Filling connection