HYDRONIC HEATING AND COOLING
PRETEST EXAM 2025 QUESTIONS AND
VERIFIED CORRECT ANSWERS | 2025-
2026
T/F
When a piping system is sized for heating and cooling, the
smaller required flow rate is used for sizing the
components of the system. Correct Answer False
T/F
In one-pipe primary-secondary systems, the terminal units
are located on secondary circuits that are in parallel with
the main or primary circuit. Correct Answer True
Since the greatest amount of body heat is lost by ___, it is
logical that the system that most satisfactorily controls this
loss is best able to create a comfort condition.
A. conduction
B. convection
C. zoning
D. radiation Correct Answer D
A typical modern hydronic heating and cooling system is
divided into ___ main parts.
A. two
B. three
C. four
D. five Correct Answer B
, Temperature is an indirect measure of the ___ attained by
the molecules in a substance and is a measure of the
intensity of heat.
A. density
B. mass
C. velocity
D. depth Correct Answer C
When a vapor is heated to a temperature higher than its
boiling point, it is said to be ___.
A. superheated
B. saturated
C. fused
D. steamed Correct Answer A
The hydronic cooling cycle is composed of ___ separate
and distinct cycles that create the complete hydronic
cooling system.
A. two
B. three
C. four
D. five Correct Answer D
A ___ cooling tower is a cooling tower in which the water
and ambient air are introduced at the top of the tower and
flow downward through the fill.
A. crossflow
B. parallel-flow
C. direct flow
D. counterflow Correct Answer B
PRETEST EXAM 2025 QUESTIONS AND
VERIFIED CORRECT ANSWERS | 2025-
2026
T/F
When a piping system is sized for heating and cooling, the
smaller required flow rate is used for sizing the
components of the system. Correct Answer False
T/F
In one-pipe primary-secondary systems, the terminal units
are located on secondary circuits that are in parallel with
the main or primary circuit. Correct Answer True
Since the greatest amount of body heat is lost by ___, it is
logical that the system that most satisfactorily controls this
loss is best able to create a comfort condition.
A. conduction
B. convection
C. zoning
D. radiation Correct Answer D
A typical modern hydronic heating and cooling system is
divided into ___ main parts.
A. two
B. three
C. four
D. five Correct Answer B
, Temperature is an indirect measure of the ___ attained by
the molecules in a substance and is a measure of the
intensity of heat.
A. density
B. mass
C. velocity
D. depth Correct Answer C
When a vapor is heated to a temperature higher than its
boiling point, it is said to be ___.
A. superheated
B. saturated
C. fused
D. steamed Correct Answer A
The hydronic cooling cycle is composed of ___ separate
and distinct cycles that create the complete hydronic
cooling system.
A. two
B. three
C. four
D. five Correct Answer D
A ___ cooling tower is a cooling tower in which the water
and ambient air are introduced at the top of the tower and
flow downward through the fill.
A. crossflow
B. parallel-flow
C. direct flow
D. counterflow Correct Answer B
