What is the main purpose of learning about basic hot water heating systems?

• To cook food

• To perform maintenance and repairs

• To paint houses

• To build furniture

What is the main purpose of a hot water heating system?

• To cool down a building

• To provide comfort heating

• To generate electricity

• To purify water

What is a heat transfer unit (HTU) used for in a hot water heating system?

• To cool the air

• To transfer heat from water to air

• To generate steam

• To store water

What are the two basic types of hydronic heating systems?

• Electric and gas systems

• Gravity and forced flow systems

• Solar and wind systems

• Steam and air systems

How do gravity systems in hot water heating work?

• By using fans

• By using convection currents

• By using electric pumps

• By using solar panels

When were hot water heating systems introduced in Canada?

• Early 1900s

• Late 1800s

• Mid 1900s

• Early 2000s

In early systems, what happens to the less dense heated water?

• It sinks

• It rises naturally

• It evaporates

• It freezes

What was a drawback of gravity hydronic heating systems?

• They were too fast

• They were too noisy

• Slow response to heating demands

• They used too much electricity

How are forced hydronic heating systems classified?

• By color

• By size

• By piping layout

• By weight

Which of the following is a type of piping layout in forced hydronic systems?

• Three-pipe system

• One-pipe system

• Four-pipe system

• Five-pipe system