HYDRONIC HEATING AND COOLING ACTUAL 2026 ||
MOST RECENT EXAM 2026-2027 ACTUAL COMPLETE
REAL EXAM QUESTIONS AND 100% CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+ | GUARANTEED SUCCESS!!
NEWEST EXAM | JUST RELEASED!!
pumps when subjected to a Lyft task must be____before
starting the motor.
A. Bumped.
B. Primed.
C. Cleaned
D. Disconnected. - ANSWER-Primed
Which term describes an impeller that has a vein attached to
a hub that is not
enclosed, or supported by a shoulder on
either side?
A. Open impeller.
B. Semi open impeller.
C. Closed impeller
D. Semi-close impeller - ANSWER-Open impeller
Which term describes a hydronic system that is sealed to
prevent the entrance
,of air from the
atmosphere?
A. Open system.
B. Closed system.
C. Single pipe system.
D. Two pipe system. - ANSWER-Closed system
Why is glycol not used at 100% concentrations?
A. Too
toxic
B. Very high
viscosity.
C. Has poor freeze
protection
D. Does not transfer heat well. - ANSWER-Very
high viscosity
Which pump is used most often for a closed hydronic piping
system?
A.
Diaphragm.
B.
Vacuum.
C.
Centrifugal.
,D. Rotary. - ANSWER-
Centrifugal
In a primary secondary pumping arrangement, where is the
largest circulator
installed?
A. Secondary
loop.
B. End of a
system.
C. Return
Piping.
D. Primary Loop. - ANSWER-
Primary loop
A hydronic system uses____to transfer heat.
A.
Oil
B.
HTF.
C.
Ammonia.
D. 100% glycol. -
ANSWER-HTF
Where would you install a triple duty valve?
, A. Suction side of the
boiler.
B. Discharge of the
boiler.
C. On the return
piping
D. Discharge side of the circulator. - ANSWER-Discharge side
of the circulator
What is the maximum spacing recommended for the closely
space tees on a
primary/secondary
system?
A. 18
inches.
B. 2 pipe
diameter's.
C. 3 pipe
diameter's.
D. 4 pipe diameter s - ANSWER-4 pipe
diameters
What are the two types of pump misalignment that must be
checked?
A. Parallel and perpendicular.
B. Angular and parallel.
C. Direct and reverse.
MOST RECENT EXAM 2026-2027 ACTUAL COMPLETE
REAL EXAM QUESTIONS AND 100% CORRECT
ANSWERS (VERIFIED ANSWERS) ALREADY
GRADED A+ | GUARANTEED SUCCESS!!
NEWEST EXAM | JUST RELEASED!!
pumps when subjected to a Lyft task must be____before
starting the motor.
A. Bumped.
B. Primed.
C. Cleaned
D. Disconnected. - ANSWER-Primed
Which term describes an impeller that has a vein attached to
a hub that is not
enclosed, or supported by a shoulder on
either side?
A. Open impeller.
B. Semi open impeller.
C. Closed impeller
D. Semi-close impeller - ANSWER-Open impeller
Which term describes a hydronic system that is sealed to
prevent the entrance
,of air from the
atmosphere?
A. Open system.
B. Closed system.
C. Single pipe system.
D. Two pipe system. - ANSWER-Closed system
Why is glycol not used at 100% concentrations?
A. Too
toxic
B. Very high
viscosity.
C. Has poor freeze
protection
D. Does not transfer heat well. - ANSWER-Very
high viscosity
Which pump is used most often for a closed hydronic piping
system?
A.
Diaphragm.
B.
Vacuum.
C.
Centrifugal.
,D. Rotary. - ANSWER-
Centrifugal
In a primary secondary pumping arrangement, where is the
largest circulator
installed?
A. Secondary
loop.
B. End of a
system.
C. Return
Piping.
D. Primary Loop. - ANSWER-
Primary loop
A hydronic system uses____to transfer heat.
A.
Oil
B.
HTF.
C.
Ammonia.
D. 100% glycol. -
ANSWER-HTF
Where would you install a triple duty valve?
, A. Suction side of the
boiler.
B. Discharge of the
boiler.
C. On the return
piping
D. Discharge side of the circulator. - ANSWER-Discharge side
of the circulator
What is the maximum spacing recommended for the closely
space tees on a
primary/secondary
system?
A. 18
inches.
B. 2 pipe
diameter's.
C. 3 pipe
diameter's.
D. 4 pipe diameter s - ANSWER-4 pipe
diameters
What are the two types of pump misalignment that must be
checked?
A. Parallel and perpendicular.
B. Angular and parallel.
C. Direct and reverse.
