Learn Hydronic System Components: Quiz Yourself & Master the Basics

Question 1

What is the primary function of a circulator pump in a hydronic heating system?

Accepted Answer

To circulate heated water throughout the system

Answer

To remove air from the system

Answer

To regulate water temperature

Answer

To maintain a constant water pressure

Question 2

Which component is responsible for adding heat to the water in a hydronic heating system?

Accepted Answer

Boiler

Answer

Zone valve

Answer

Radiator

Answer

Expansion tank

Question 3

What is the purpose of an expansion tank in a hydronic system?

Accepted Answer

To accommodate changes in water volume due to temperature fluctuations

Answer

To prevent water from flowing in the wrong direction

Answer

To filter out debris and sediment from the water

Question 4

Which type of radiator utilizes both radiant and convective heat transfer to warm a room?

Accepted Answer

Panel radiator

Answer

Fin-tube radiator

Answer

Baseboard heater

Answer

Electric radiator

Question 5

A technician needs to control the flow of hot water to a specific zone in a hydronic system. What component should they use?

Accepted Answer

Zone valve

Answer

Balancing valve

Answer

Check valve

Answer

Pressure relief valve

Question 6

What is the function of an air vent in a hydronic heating system?

Accepted Answer

To release trapped air that can reduce system efficiency

Answer

To regulate the temperature of the circulating water

Answer

To increase water pressure in the system

Question 7

Which of the following is NOT a common type of boiler used in hydronic heating systems?

Accepted Answer

Solar boiler

Answer

Electric boiler

Answer

Gas boiler

Answer

Oil boiler

Question 8

What is the purpose of a pressure relief valve in a hydronic heating system?

Accepted Answer

To prevent excessive pressure buildup within the system

Answer

To regulate the temperature of the circulating water

Answer

To remove air from the system

Question 9

Which factor is MOST important when selecting the correct size circulator pump for a hydronic system?

Accepted Answer

The system's heating load and head loss

Answer

The size of the expansion tank

Answer

The number of radiators in the system

Answer

The type of boiler being used

Question 10

What is the function of a thermostat in a hydronic heating system?

Accepted Answer

To control the system's operation by sensing room temperature

Answer

To regulate the flow of water through the boiler

Answer

To monitor the water pressure within the system