OHIO HYDRONICS CONTRACTOR FINAL
EXAM SCRIPT 2026 COMPLETE SOLVED
QUESTION SERIES
◉ Electric
Answer: Which boiler has the highest output rating?
◉ Backflow Preventer
Answer: What device is used to protect a potable water system from
cross connections?
◉ Heat exchanger
Answer: A condenser acts as a type of ___________?
◉ Type of construction
Answer: Low-pressure boilers are classified by __________?
◉ 15 PSIG steam, 160 PSIG water @ 250°F
Answer: Low-pressure boilers have specific pressure and
temperature limits; what is the maximum pressure and temperature
limit for these boilers (ASME)?
,◉ Boiler Fitting
Answer: Which type of device is attached to the boiler to assist in the
management of the air in the hydronic system?
◉ Condensing
Answer: Which type of boiler is is microprocessor-controlled
combustion which automatically adjusts air-fuel mixture?
◉ Relief Valve
Answer: Which device protects the boiler from pressures above
maximum design pressure?
◉ Atomize
Answer: Fuel oil burners ________ fuel oil to increase contact with
combustion air for maximum efficiency.
◉ LWCO
Answer: What does ASME boiler pressure vessel code require if the
output of a boiler is 400,000 BTUH or more?
◉ 1 hour
Answer: An output rating is the total amount of heat a boiler will
produce in _________?
, ◉ Heat Pump
Answer: What is the device that can be used to both heat and cool an
area?
◉ The condenser
Answer: When a heat pump is in cooling mode, the outdoor device is
__________?
◉ Temperature Increases
Answer: As a vapor is compressed in a compression refrigeration
system what happens to the refrigerant?
◉ Evaporated
Answer: In a compression refrigeration system where is the heat
absorbed?
◉5
Answer: The hydronic cooling cycle is composed of ______________
separate and distinct cycles that create the complete system.
◉ Counterflow
Answer: What type of flow has better heat transfer in a coil?
EXAM SCRIPT 2026 COMPLETE SOLVED
QUESTION SERIES
◉ Electric
Answer: Which boiler has the highest output rating?
◉ Backflow Preventer
Answer: What device is used to protect a potable water system from
cross connections?
◉ Heat exchanger
Answer: A condenser acts as a type of ___________?
◉ Type of construction
Answer: Low-pressure boilers are classified by __________?
◉ 15 PSIG steam, 160 PSIG water @ 250°F
Answer: Low-pressure boilers have specific pressure and
temperature limits; what is the maximum pressure and temperature
limit for these boilers (ASME)?
,◉ Boiler Fitting
Answer: Which type of device is attached to the boiler to assist in the
management of the air in the hydronic system?
◉ Condensing
Answer: Which type of boiler is is microprocessor-controlled
combustion which automatically adjusts air-fuel mixture?
◉ Relief Valve
Answer: Which device protects the boiler from pressures above
maximum design pressure?
◉ Atomize
Answer: Fuel oil burners ________ fuel oil to increase contact with
combustion air for maximum efficiency.
◉ LWCO
Answer: What does ASME boiler pressure vessel code require if the
output of a boiler is 400,000 BTUH or more?
◉ 1 hour
Answer: An output rating is the total amount of heat a boiler will
produce in _________?
, ◉ Heat Pump
Answer: What is the device that can be used to both heat and cool an
area?
◉ The condenser
Answer: When a heat pump is in cooling mode, the outdoor device is
__________?
◉ Temperature Increases
Answer: As a vapor is compressed in a compression refrigeration
system what happens to the refrigerant?
◉ Evaporated
Answer: In a compression refrigeration system where is the heat
absorbed?
◉5
Answer: The hydronic cooling cycle is composed of ______________
separate and distinct cycles that create the complete system.
◉ Counterflow
Answer: What type of flow has better heat transfer in a coil?
