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Water heating: Quiz


Question 1: In the UK these vessels are known as unvented cylinders (or commonly as Megaflos after the ________ of a widely-used model).
Brand managementProduct placementAdvertisingBrand

Question 2: The rods act as heating elements in a circulating loop of ________.

Question 3: the popularity of ________/forced air systems in North America).
Ventilation (architecture)Air conditionerAir handlerHVAC

Question 4: District heating systems make it possible to supply all of the energy for water heating as well as space heating from waste heat from industries, power plants, incinerators, ________, and central solar heating.
Geothermal heatingGeothermal heat pumpGeothermal powerGeothermal electricity

Question 5: Modern wetbacks may run the pipe in a more sophisticated design to assist ________.
FoulingWaterHeat exchangerShell and tube heat exchanger

Question 6: Circulation is caused by natural ________ or by a small electric pump.

Question 7: In traditional plumbing in the ________ the space-heating boiler is set up to heat a separate hot water cylinder or water heater for potable hot water.
CanadaWalesUnited KingdomEngland

Question 8: With a central water heater of any type, water is wasted waiting for water to heat up because of the cold water in the pipes between the ________ and the water heater.
ValveCarbon dioxideTap (valve)Ball valve

Question 9: These may use ________, natural gas, propane, heating oil, solar, or other energy sources.
Electric chargeElectromagnetismElectricityElectric current

Question 10: In addition, point of use water heaters until recently were almost always electrical, and ________ is often substantially more expensive than natural gas or propane.
ElectromagnetismElectric currentElectric chargeElectricity

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