Which of the following is a disadvantage of warm air heating systems?

They can spread bacteria and dust with the air movement

They have no heat emitters on show

They provide a separate source of heat for HW generation

Why might warm air heating systems be considered unsightly?

The heat unit and ductwork can be unsightly

They do not require a separate source of heat for HW generation

What is a challenge when installing warm air heating in existing properties?

They have no heat emitters on show

What type of customers does district heating supply to?

Both industrial and residential customers

Why are local governments increasingly investing in district heating systems, especially in built-up areas?

To prevent high carbon emissions

To promote the use of fossil fuels

What is the main advantage of using CHP (combined heat and power) plants in district heating systems?

They produce heat as a by-product of the electrical generation process.

They use renewable energy sources exclusively.

They can be installed in each building separately.

Why is district heating with one large heat source preferred over having separate smaller sources in each building?

It reduces overall CO2 emissions and saves on running costs.

It is easier to control the temperature in each building.

It is more aesthetically pleasing.

What is the role of the heat exchanger in the diagram?

To transfer heat to the district heating system

What is the function of the heat interface units (HIU) in district heating systems?

To transfer energy within individual properties

To provide electricity to flats or apartments

To collect waste water from properties

How can occupants of flats or apartments control their heat usage in a district heating system?

By controlling their own dwelling individually and using a heat meter

By using a central thermostat for the entire building

By adjusting the central plant's temperature

By requesting manual adjustments from the heating company

What is the purpose of the 'hydraulic separation' methods mentioned in the context of district heating systems?

To separate the central heating and hot water systems

To combine the flow of central heating and hot water systems

To prevent water from freezing in the pipes

To increase the water pressure in the central heating system

What is the function of the motorised valve in the district heating system diagram?

To regulate the flow of hot water to the radiators

To measure the heat energy used

To fill the system with water from the mains

To relieve pressure in the system

Where is the heat meter located in the district heating system diagram?

Between the primary flow and the radiators

Before the plate heat exchangers (PHE)

What is the purpose of the Pressure Relief device in the district heating system diagram?

To maintain the pressure within the system at a safe level

To regulate the temperature of the water

To control the flow of water to the radiators

To measure the amount of heat generated

In the district heating system diagram, what is the function of the T&P relief valve?

To release excess temperature and pressure

To regulate the pH level of the water

To filter impurities from the water

What is the purpose of a heat bank in a district heating system?

To store water and provide heating water to radiators on demand

To cool down the water before it is distributed

To directly heat the water as it flows through the system

To measure the amount of heat being used by each household

What is the function of the motorised valve in the district heating system diagram?

To regulate the flow of hot water to the radiators

To measure the temperature of the water

To pump water through the system

To store hot water for future use

What is one of the advantages of district heating?

Ideal for flats and apartments in built-up areas

Need for individual fuel supply within the property

What is a disadvantage of district heating?

If the central plant fails, all properties are without heat

No need for fuel supply within the property

Helps the government to reach green targets

How does district heating help the government?

By helping to reach green targets

By increasing maintenance costs

By failing to reach green targets

By requiring fuel supply within each property

What is an advantage of district heating in terms of maintenance costs?

Reduced maintenance costs within property due to no fuel requirement

Increased maintenance costs due to fuel supply

High maintenance costs due to complex infrastructure

What are storage heaters primarily designed to do?

Store thermal energy by heating up internal ceramic bricks during the night

Cool down internal ceramic bricks during the day

Generate electricity for household use

Use solar energy to heat up water

For which customers are storage heaters primarily designed?

Customers on a time-of-use electricity tariff, such as Economy 7

Customers on a fixed electricity tariff

What is one of the advantages of storage heaters?

They are ideal for properties with no fuel supply

They require complex installation

They are louder than other heaters

They use more pipework and fuel

Which of the following is a disadvantage of storage heaters?

They are difficult to control for comfortable conditions

They are less expensive than gas

They are very complex to install

Compared to gas, the cost of electricity for storage heaters is generally:

Not applicable as storage heaters do not use electricity

What is a characteristic of storage heaters that contributes to their safety and comfort?

They require frequent maintenance

They generate a small amount of heat

9189PH2CHPPT5

Authored by William Heron

Other

12th Grade

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41 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the method used by warm air heating systems to move heated air throughout the dwelling?

Through water pipes

Using electric coils

Via ducts, vents or grills

By natural convection

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is a potential issue with warm air heating systems despite good filtration?

They can cause water leakage

They can distribute bacteria and dust

They can lead to excessive humidity

They can produce a lot of noise

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Where were gas or oil-fired warm air units traditionally very popular?

In the UK

In the US

In Canada

In Australia

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the function of the component labeled "Heat exchanger" in the warm air heating system?

To distribute warm air throughout the building

To ignite the fuel for heating

To transfer heat from the combustion process to the air

To filter out impurities from the air

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which component is responsible for pushing the heated air into the distribution system?

Combustion fan

Control board

Heat exchanger

Distribution fan

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the purpose of the "Filter" in the warm air heating system?

To clean the air before it is heated

To control the temperature of the air

To initiate the combustion process

To regulate the flow of air

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is one of the advantages of new warm air heating units?

They take up a lot of space

They are low efficiency

They have quick heat-up times within the property

They are difficult to retrofit into existing properties

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