9189PH2CHPPT6

Fill in the blank: The importance of pump positioning is crucial for ______.

• Energy efficiency

• System balance

• Noise reduction

• All of the above.

Fill in the blank: The importance of pump positioning is related to ______.

• A) Energy savings

• B) System noise

• C) Component wear

• D) All of the above.

In most domestic systems, what is the recommended size of a Feed and Expansion (F&E) cistern?

• 10 litres

• 18 litres

• 25 litres

• 30 litres

The water level in the cistern should be set at a ______ level to accommodate expansion.

• high

• medium

• low

• variable

The cold feed pipe should not contain any ______ or isolation valves.

• service

• pressure

• temperature

• flow

The open vent pipe helps in limiting the boiling point to ____. A) 90°C B) 100°C C) 110°C D) 120°C.

• 90°C

• 100°C

• 110°C

• 120°C

The open vent pipe allows for any pressure surges created by the ____.

• Water heater

• Circulating pump

• Pressure valve

• Thermostat

In an open vented system, the preferred pump position does not allow water to be pumped up the open vent pipe because it creates ________.

• positive pressure

• aeration

• negative pressure

• high flow rate

What is the correct arrangement of the system under positive pressure known as?

• The neutral zone

• The vent zone

• The pressure zone

• The pump zone.

What issues are eliminated in a sealed system regarding the cold feed?

• A) Pumping over

• B) Drawing air

• C) Positive pressure

• D) Neutral point