Hot Water 4

What type of shower is this?

• Instantaneous electric shower
• Thermostatic bar mixer type
• Gravity fed shower
• Bath mixer shower

Identify one advantage of a stored hot water system in a domestic property.

• There is a continual supply of hot water
• It is cheaper and easier to install
• It does not require a secondary source of heat
• It is suitable for low water pressure areas

Which one of the following heat sources is regarded as a renewable source of energy?

• Coal in a solid fuel boiler
• Gas in a condensing boiler
• Solar panels on the roof of a property
• Electricity supplying an immersion heater

Where would state the maximum flow rate and temperature for a particular pumped shower that has been installed?

• BS6700
• The Water Regulations
• The manufacturer’s instructions
• Building Regulations part G.

Under Building Regulations part G, what is a new or replacement immersion heater required to have?

• Temperature relief valve
• Restricted thermostat to a maximum temperature of 60 degrees
• Non-resetting overheat thermostat
• Protective coating to avoid electrolytic corrosion

The connection for a secondary circulation system return should be made at what point in the hot water cylinder?

• Bottom third of the cylinder
• Top third of the cylinder
• Middle point of the cylinder
• Just prior to the open vent connection

If a system is prone to limescale build ups, this shows

• The property is in a soft water area and the temperatures are set too high
• The property is in a hard water area and the temperatures are set toohigh
• The property has a gravity hot water system that requires upgrading
• The water pressure in the system is too high and requires reducing.

If a flow switch on a pumped shower does not work, what would be the result?

• The water temperature will remain too high
• The pump will not be activated by the electrics
• The pump will have restrictive water flow
• The water temperature will remain too low

Under the Water Regulations, what can category 2 water be described as?

• Wholesome water
• Water representing a slight risk to health
• Wholesome water with its aesthetic qualities impaired
• Water representing a severe risk to health.

What type of hot water storage cylinder is shown

• Single feed indirect cylinder
• Double  feed indirect cylinder
• Direct cylinder
• Unvented cylinder