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WorksheetsHydronic Heating Terms and Definitions
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
The hydronic term for measuring the flow rate of water through piping and equipment is
a)
Gallons Per Minute
b)
Cubic Feet per Minute
c)
British Thermal Unit
d)
Feet Per Second
2.
Name the 4 main forms of heat transfer.
a)
radiation, evaporation, fusion and conduction
b)
radiation, convection, conduction and evaporation
c)
conduction, convection, vaporization and evaporation
d)
radiation, convection, conduction and vaporization
3.
The term used for heat transfer is
a)
GPM
b)
FPS
c)
CFM
d)
BTU
4.
Temperature differential is commonly referred to as
a)
TD
b)
Alpha T
c)
Delta T
d)
Beta T
5.
Microbubbles are
a)
Tiny air bubbles you can barely see in water
b)
Small air bubbles you can easily see in water
c)
Large air bubbles in water
d)
Air bubbles that only exist in hot water
6.
In hydronic heating, what is meant by the term "natural circulation?"
a)
The movement of water in a stream or river.
b)
The circulation of water by a pump that runs on solar power.
c)
The circulation of water by a hand driven pump.
d)
Gravity circulation of hot water without a pump
7.
What is the main cause of "pressure drop" in a hot water piping system?
a)
temperature drop
b)
friction loss
c)
turbulence
d)
flow rate
8.
"Static head pressure" refers to
a)
the press. of water in a system based on height/elevation.
b)
the press. of water on the discharge side of the pump.
c)
the press. of water on the suction side of the pump.
d)
the press. that a pump must overcome based on the friction loss.
9.
"Pump Head" or "Total Dynamic Head" pressure means
a)
the difference in pressure between the suction and discharge
b)
the press. needed to overcome the total system press. drop
c)
the press. needed to overcome the height of the system.
d)
the highest pressure the pump can handle.
10.
Velocity (speed) of the water circulating through a piping system is measured by
a)
gallons per minute
b)
feet per second
c)
cubic feet per minute
d)
gallons per hour
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