ABYC AIR CONDITIONING AND
REFRIGERATION CERTIFICATION ACTUAL TEST
PAPER 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◉ Absolute Pressure. Answer: Pressure measured with a base of
zero
◉ Absolute Temperature. Answer: A temperature scale using
absolute zero as a reference - Rankin or Kelvin Scale (may be
measures in degrees C or F)
◉ Absolute Zero. Answer: Theoretical temperature at which all
molecular activity ceases = -273.16 C or -456.69 F
◉ 250%. Answer: By approximately how much (%) does a start
capacitor increase motor torque?
◉ C. Both. Answer: Tech A says that it is possible to identify the start
and run windings of a motor with an ohm meter by noting which has
higher resistance, indicating the start windings. Tech B say the
highest resistance will be noted when measuring from run to start
terminals. Which is correct?
,A. Tech A
B. Tech B
C. Both
D. Neigher
◉ Compressor. Answer: The heart of a system, keeps the
refridgerant flowing at specific rates of flow, at specific
temperatures.
◉ Inlet (suction), shuts down system if pressure drops too low..
Answer: On which side of a compressor is the low pressure switch,
inlet or outlet, and what function does it provide?
◉ Outlet, shuts down compressor if pressure gets too high (to
protect the compressor).. Answer: On which side of a compressor is
the high pressure switch, inlet or outlet, and what function does it
provide?
◉ Condenser. Answer: Air or water cooled heat exchanger which
absorbs latent heat energy of hot refridgerant gas and causes it to
become a liquid.
◉ Metering Device (AKA Expansion Device/Tube/Valve, TXV, or
Capillary Tube). Answer: Maintains a specific rate of flow from the
,high-pressure side of a refridgeration system into the low-pressure
side.
◉ Evaporator. Answer: Air heat-exchanger that allows heat from
incoming air to pass into the cold refridgerant liquid which absorbs
latent heat and evaporates in the process, cooling the exit air.
◉ KLIXON overload protector. Answer: Trademark for a popular
manufacturer of compressor overload protector device. (Also
manufactures overcurrent protection devices, switches, and
thermostats used in HVAC systems)
◉ Running at lower than rated voltage (increases current draw and
thus temperature of windings). Answer: What is a common cause of
motor winding insulation leakage/breakdown?
◉ 3.412 BTU's/Hour = 1 Watt. Answer: 1 Watt is equal to how many
BTU's per hour?
◉ 1 BTU / hr = 0.293 Watts. Answer: 1 BTU per hour is equal to how
many Watts?
◉ Tech B (motors have PF < 1). Answer: When calculating power
draw for a motor, Tech A says to multiply Amps by Volts. Tech B says
this is true, but it would be more accurate to include a third
, multiplier, Power Factor to give accurate real power draw. Who is
most correct?
◉ Potential Relay. Answer: Another name for Start Relay
◉ return should be 20% bigger than source. Answer: Ho much
bigger should an air conditioning return duct be compared to the
discharge duct?
◉ Waist heigh or higher. Answer: At what height should A/C
discharge ducts be located in the cabin?
◉ low, near the floor. Answer: At what height should A/C return duct
sources be located in the cabin?
◉ risk of CO ingress. Answer: Why should A/C condensate drain
hose not be discharged into the engine room bilge area?
◉ 3 feet. Answer: What is the minimal distance on the outside of the
hull between A/C condensate discharge outlet and engine exhaust
outlet?
◉ 5/8 inch. Answer: What is the minimum diameter recommended
for A/C condensate drain hose?
REFRIGERATION CERTIFICATION ACTUAL TEST
PAPER 2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◉ Absolute Pressure. Answer: Pressure measured with a base of
zero
◉ Absolute Temperature. Answer: A temperature scale using
absolute zero as a reference - Rankin or Kelvin Scale (may be
measures in degrees C or F)
◉ Absolute Zero. Answer: Theoretical temperature at which all
molecular activity ceases = -273.16 C or -456.69 F
◉ 250%. Answer: By approximately how much (%) does a start
capacitor increase motor torque?
◉ C. Both. Answer: Tech A says that it is possible to identify the start
and run windings of a motor with an ohm meter by noting which has
higher resistance, indicating the start windings. Tech B say the
highest resistance will be noted when measuring from run to start
terminals. Which is correct?
,A. Tech A
B. Tech B
C. Both
D. Neigher
◉ Compressor. Answer: The heart of a system, keeps the
refridgerant flowing at specific rates of flow, at specific
temperatures.
◉ Inlet (suction), shuts down system if pressure drops too low..
Answer: On which side of a compressor is the low pressure switch,
inlet or outlet, and what function does it provide?
◉ Outlet, shuts down compressor if pressure gets too high (to
protect the compressor).. Answer: On which side of a compressor is
the high pressure switch, inlet or outlet, and what function does it
provide?
◉ Condenser. Answer: Air or water cooled heat exchanger which
absorbs latent heat energy of hot refridgerant gas and causes it to
become a liquid.
◉ Metering Device (AKA Expansion Device/Tube/Valve, TXV, or
Capillary Tube). Answer: Maintains a specific rate of flow from the
,high-pressure side of a refridgeration system into the low-pressure
side.
◉ Evaporator. Answer: Air heat-exchanger that allows heat from
incoming air to pass into the cold refridgerant liquid which absorbs
latent heat and evaporates in the process, cooling the exit air.
◉ KLIXON overload protector. Answer: Trademark for a popular
manufacturer of compressor overload protector device. (Also
manufactures overcurrent protection devices, switches, and
thermostats used in HVAC systems)
◉ Running at lower than rated voltage (increases current draw and
thus temperature of windings). Answer: What is a common cause of
motor winding insulation leakage/breakdown?
◉ 3.412 BTU's/Hour = 1 Watt. Answer: 1 Watt is equal to how many
BTU's per hour?
◉ 1 BTU / hr = 0.293 Watts. Answer: 1 BTU per hour is equal to how
many Watts?
◉ Tech B (motors have PF < 1). Answer: When calculating power
draw for a motor, Tech A says to multiply Amps by Volts. Tech B says
this is true, but it would be more accurate to include a third
, multiplier, Power Factor to give accurate real power draw. Who is
most correct?
◉ Potential Relay. Answer: Another name for Start Relay
◉ return should be 20% bigger than source. Answer: Ho much
bigger should an air conditioning return duct be compared to the
discharge duct?
◉ Waist heigh or higher. Answer: At what height should A/C
discharge ducts be located in the cabin?
◉ low, near the floor. Answer: At what height should A/C return duct
sources be located in the cabin?
◉ risk of CO ingress. Answer: Why should A/C condensate drain
hose not be discharged into the engine room bilge area?
◉ 3 feet. Answer: What is the minimal distance on the outside of the
hull between A/C condensate discharge outlet and engine exhaust
outlet?
◉ 5/8 inch. Answer: What is the minimum diameter recommended
for A/C condensate drain hose?
