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WorksheetsPP4 hot water Localized Instantaneous 1.2
Total questions: 13
Worksheet time: 7mins
What are localized systems in the context of instantaneous hot water systems?
Systems that are designed to serve multiple outlets at various positions
Systems that are usually installed close to the centralized hot water supply
Systems that are designed to serve one outlet at the position where it is needed
Systems that require manual operation for each use
Where are localised instantaneous water heaters usually sited?
Below the sink
Above the sink but under the sink types
On the floor next to the sink
Outside the bathroom
Localised instantaneous water heaters are generally used to supply small quantities of hot water to which of the following?
Kitchen sinks and washing machines
Hand-wash basins and showers
Central heating systems
Outdoor pools
What principle does the multi-point instantaneous water heater work on to create a pressure differential across the gas valve?
Pascal's principle
Archimedes' principle
Bernoulli's principle
Newton's third law
What is the function of the venturi tube in the multi-point instantaneous water heater?
To heat the water
To create a pressure differential
To store hot water
To extinguish the pilot flame
Is there a limit to the amount of hot water that can be delivered by the multi-point instantaneous water heater?
Yes, there is a specific storage capacity
No, as long as the tap is running, hot water will be delivered
Yes, it is limited by the size of the heat exchanger
No, but it is limited by the gas supply
What is the function of the component labeled "Expansion chamber" in the thermal store system?
To mix hot and cold water
To store extra water heated by the boiler
To allow for the expansion of water when it heats up
To pump water through the system
What is the purpose of the "Adjustable thermostatic mixing valve" in the gas- or oil-fired combined primary storage unit?
To control the flow of gas to the burner.
To regulate the temperature of the hot water outlet.
To circulate the central heating flow and return.
To ignite the gas burner.
What characterizes a localised hot water system?
It involves heating water at a central point and distributing it throughout the dwelling.
It is a system where hot water is delivered by a small water heater at multiple points where it is needed.
It is a system where hot water is delivered by a small water heater at the point where it is needed.
It is a system that heats water on a schedule, regardless of demand.
An electric shower is a form of?
Direct single point hot water
Indirect single point hot water
Indirect multi point hot water
Direct multi point hot water
What British standard covers Hot water installation?
BS6700
BS1212 part 2
BSEN806
BSEN6700
What is this type of shower
Instantaneous gas shower
Instantaneous electric shower
Gravity shower
Pumped shower
