One of the disadvantages of the gravity hot water system is:
a. The water temperature must be very high to compensate for heat losses
b. Piping used must be rated for high temperature services
c. There is a slow response to changes in heat demand
d. The maximum water temperature is limited to approximately 100°C
e. High maintenance
Answer: C
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Power Engineering Chapter 98
- The temperature control on a steam to hot water converter, controls
- To ensure that each zone circuit has the proper flow of water to provide the required heat a:
- The air removed by the air separator is vented to the
- An air separator should always be installed in
- Diverter fittings are used in the supply lines to heating units
- Snow melting systems are usually filled with
- In radiant heating system changes are
- In a radiant heating system the maximum surface temperature is
- One of the advantages of the radiant panel hot water heating system over the conventional heating system is:
- In a one pipe hot water system, the fitting that directs the water to each converter is called the:
- One of the advantages of the forced circulation heating systems as compared to the gravity heating systems is:
- The system which allows the highest water temperature is the:
- Because of the different circuit lengths to each convector, the direct return hot water system is difficult to:
- Advantages of the high temperature hot water systems are:
- The two pipe reverse return hot water heating system has the advantage of:
- Automatic snow melting systems do not use:
- Which of the following is NOT a hydronic heating system?
- The maximum temperature of water in a gravity hot water system is:
- The flow of water in a multiple-circuit hot water heating system is controlled by:
- One of the advantages of the one pipe forced circulation hot water heating system is:
- A hot water system which circulates water through the pipes with a pump is known as a:
- A hot water heating system is also known as a _____ heating system.
- In a hot water system compared to a steam heating system, if there is a leak, damage will:
- In a forced circulation system, the closed expansion tank allows the system to operate: