Hydronic Heating and Cooling
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A _______ is a device that allows for instant visual balancing of hot or cold
water flow.
a) pitot tube station
b) Thermo-Flo balancer
c) straight coil siphon
d) readout valve - Correct Answer: b
2. A(n) _____ flow meter is a flow meter that measures the displacement of a
tapered piston or float.
a) inline flow meter
b) pitot tube flow meter
c) transducer flow meter
d) sensor flow meter - Correct Answer: a
3. A _______ valve is a hydronic piping system monitoring device that is
equipped with an integral check valve designed to minimize system fluid
loss when setting up to monitor pumps, heat exchangers, valves, or other
devices handling hot or cold HTF.
a) double seated two-way valve
b) readout valve
c) three-way conventional valve
d) Thermo-Flo valve - Correct Answer: b
,4. The _______ prevents damage to a steam pressure gauge by forming a
water seal to keep steam from entering the gauge.
a) readout valve
b) straight coil siphon
c) Thermo-Flo balancer
d) fan coil unit - Correct Answer: b
5. A ____-pipe system is used where each terminal unit or zone may heat or
cool independently of all other units or zones.
a) two
b) three
c) four
d) six - Correct Answer: c
6. In a four-pipe system, a ______ valve is generally recommended when high
differential pressures are encountered.
a) conventional three-way
b) double seated two-way
c) readout
d) single seated two-way - Correct Answer: b
7. A _____ valve changeover using two three-way valves connected to the
terminal unit or zone piping is the most commonly used changeover
method on a four-pipe system.
a) double seated two-way
b) conventional three-way
c) modulating four-way
d) readout - Correct Answer: b
,8. There are _______ types of terminal units commonly used in hydronic
heating systems.
a) two
b) three
c) four
d) five - Correct Answer: a
9. A _____ radiator is a radiator designed to function more efficiently and at
lower HTF temperatures than a traditional radiator.
a) cast-iron
b) panel
c) forced-air
d) unit - Correct Answer: b
10._____ systems are used on driveways, walkways, parking areas, stairways,
ramps, loading docks, and other outside surfaces.
a) radiant panel
b) snow melt
c) fan coil
d) chilled beam - Correct Answer: b
11.Of the types of chilled beams, _____ systems are similar to convection
systems and have ventilation air delivered through ductwork by a central
air-handling system.
a) passive
b) active
c) forced-air
d) radiant - Correct Answer: b
, 12.A _______ convection unit is a terminal unit that creates convective
currents by mechanically moving air past a terminal unit element.
a) natural
b) forced-air
c) radiant
d) passive - Correct Answer: b
13.There are ______ types of hydronic heating forced-air convection units.
a) two
b) three
c) four
d) five - Correct Answer: c
14.The _____ in a cabinet unit heater adds energy to the air so that directional
louvers can be used on the top or front of the heater to distribute the air
more efficiently in a building space.
a) transducer
b) blower
c) siphon
d) sensor - Correct Answer: b
15.A ______ heater is a self-contained, forced-air convection heater that is not
connected to ductwork and contains a fan, an HTF coil, and controls in one
cabinet.
a) unit
b) panel
c) cabinet
d) radiant - Correct Answer: a
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
ELABORATED 100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!! Current Update!!
1. A _______ is a device that allows for instant visual balancing of hot or cold
water flow.
a) pitot tube station
b) Thermo-Flo balancer
c) straight coil siphon
d) readout valve - Correct Answer: b
2. A(n) _____ flow meter is a flow meter that measures the displacement of a
tapered piston or float.
a) inline flow meter
b) pitot tube flow meter
c) transducer flow meter
d) sensor flow meter - Correct Answer: a
3. A _______ valve is a hydronic piping system monitoring device that is
equipped with an integral check valve designed to minimize system fluid
loss when setting up to monitor pumps, heat exchangers, valves, or other
devices handling hot or cold HTF.
a) double seated two-way valve
b) readout valve
c) three-way conventional valve
d) Thermo-Flo valve - Correct Answer: b
,4. The _______ prevents damage to a steam pressure gauge by forming a
water seal to keep steam from entering the gauge.
a) readout valve
b) straight coil siphon
c) Thermo-Flo balancer
d) fan coil unit - Correct Answer: b
5. A ____-pipe system is used where each terminal unit or zone may heat or
cool independently of all other units or zones.
a) two
b) three
c) four
d) six - Correct Answer: c
6. In a four-pipe system, a ______ valve is generally recommended when high
differential pressures are encountered.
a) conventional three-way
b) double seated two-way
c) readout
d) single seated two-way - Correct Answer: b
7. A _____ valve changeover using two three-way valves connected to the
terminal unit or zone piping is the most commonly used changeover
method on a four-pipe system.
a) double seated two-way
b) conventional three-way
c) modulating four-way
d) readout - Correct Answer: b
,8. There are _______ types of terminal units commonly used in hydronic
heating systems.
a) two
b) three
c) four
d) five - Correct Answer: a
9. A _____ radiator is a radiator designed to function more efficiently and at
lower HTF temperatures than a traditional radiator.
a) cast-iron
b) panel
c) forced-air
d) unit - Correct Answer: b
10._____ systems are used on driveways, walkways, parking areas, stairways,
ramps, loading docks, and other outside surfaces.
a) radiant panel
b) snow melt
c) fan coil
d) chilled beam - Correct Answer: b
11.Of the types of chilled beams, _____ systems are similar to convection
systems and have ventilation air delivered through ductwork by a central
air-handling system.
a) passive
b) active
c) forced-air
d) radiant - Correct Answer: b
, 12.A _______ convection unit is a terminal unit that creates convective
currents by mechanically moving air past a terminal unit element.
a) natural
b) forced-air
c) radiant
d) passive - Correct Answer: b
13.There are ______ types of hydronic heating forced-air convection units.
a) two
b) three
c) four
d) five - Correct Answer: c
14.The _____ in a cabinet unit heater adds energy to the air so that directional
louvers can be used on the top or front of the heater to distribute the air
more efficiently in a building space.
a) transducer
b) blower
c) siphon
d) sensor - Correct Answer: b
15.A ______ heater is a self-contained, forced-air convection heater that is not
connected to ductwork and contains a fan, an HTF coil, and controls in one
cabinet.
a) unit
b) panel
c) cabinet
d) radiant - Correct Answer: a
