STATIONARY ENGINEER CERTIFICATION
SCRIPT 2026 FULL ANSWERS TEST PAPER
GRADED A+
⩥ Enthalpy.
Answer: Enthalpy
Heat content or total heat, including both sensible and latent heat. The
amount of heat contained in a refrigerant at any given temperature with
reference to -40°F.
⩥ HeatPump.
Answer: Heat Pump
An air conditioner that contains a valve that allows it to alternate
between heating and cooling.
⩥ Humidity.
Answer: Humidity
The amount of moisture in the air.
⩥ Relative humidity.
Answer: Relative humidity
, The ratio of the amount of vapor contained in the air to the greatest
amount the air could hold at that temperature. Normally expressed as a
percentage.
⩥ Super-Heated Vapor.
Answer: Refrigerant vapor heated beyond its saturation point.
⩥ Vacuum Pump.
Answer: A pump used to remove air and moisture from a refrigeration
system at a pressure below atmospheric pressure.
⩥ Water Cooled System.
Answer: Water Cooled System
A type of air conditioning system that uses freon as a refrigerant and
water as a condensing medium. Typically, the water-cooled condenser is
located inside the air conditioner with the rest of the refrigeration
components. Water is piped to the unit from a cooling tower or other
suitable source.
⩥ Zoning.
Answer: Zoning
The practice of providing independent heating and/or cooling to
different areas in a structure. Zoning typically utilizes a system
controller, zoning dampers controlled by a thermostat in each zone, and
a bypass damper to regulate static pressure in the supply duct.
SCRIPT 2026 FULL ANSWERS TEST PAPER
GRADED A+
⩥ Enthalpy.
Answer: Enthalpy
Heat content or total heat, including both sensible and latent heat. The
amount of heat contained in a refrigerant at any given temperature with
reference to -40°F.
⩥ HeatPump.
Answer: Heat Pump
An air conditioner that contains a valve that allows it to alternate
between heating and cooling.
⩥ Humidity.
Answer: Humidity
The amount of moisture in the air.
⩥ Relative humidity.
Answer: Relative humidity
, The ratio of the amount of vapor contained in the air to the greatest
amount the air could hold at that temperature. Normally expressed as a
percentage.
⩥ Super-Heated Vapor.
Answer: Refrigerant vapor heated beyond its saturation point.
⩥ Vacuum Pump.
Answer: A pump used to remove air and moisture from a refrigeration
system at a pressure below atmospheric pressure.
⩥ Water Cooled System.
Answer: Water Cooled System
A type of air conditioning system that uses freon as a refrigerant and
water as a condensing medium. Typically, the water-cooled condenser is
located inside the air conditioner with the rest of the refrigeration
components. Water is piped to the unit from a cooling tower or other
suitable source.
⩥ Zoning.
Answer: Zoning
The practice of providing independent heating and/or cooling to
different areas in a structure. Zoning typically utilizes a system
controller, zoning dampers controlled by a thermostat in each zone, and
a bypass damper to regulate static pressure in the supply duct.
