What temperature causes air to become saturated with moisture?

• Boiling point

• Dew point

• Freezing point

• Melting point

Which refrigerant type is considered the 'cool' choice with no ozone depletion potential (ODP)?

• Ammonia

• HFC

• HCFC

• CFC

What is the ideal temperature and humidity range for human comfort?

• 30°C to 35°C at 20% to 50% relative humidity

• 25°C to 30°C at 50% to 80% relative humidity

• 20°C to 25°C at 30% to 60% relative humidity

• 15°C to 20°C at 40% to 70% relative humidity

What is the term for the transfer of heat through a solid material, not a fluid?

• Adiabatic process

• Conduction

• Latent heat

• Sensible heat

What is the coolest device that can transfer heat from one location to another for heating or cooling purposes?

• Air conditioner

• Refrigerator

• Heat pump

• Boiler

Which refrigerant is known as the 'cool' choice and falls into the safety category A2L?

• R-32

• R-410A

• R-134a

• R-22

What is the unit of heat commonly used in the Imperial system?

• Kelvin

• British Thermal Unit (BTU)

• Joule

• Celsius

How much heat is absorbed or rejected by one ton of ice melting over 24 hours in refrigeration?

• 15,000 BTUs per hour

• 12,000 BTUs per hour

• 6,000 BTUs per hour

• 9,000 BTUs per hour

What is the volume of air typically measured in the Imperial system?

• Cubic meters (m³)

• Cubic feet (ft³)

• Liters (L)

• Gallons (gal)

What is the equivalent of one ton of refrigeration in kilowatts (kW)?

• a) 2.517 kW

• b) 3.017 kW

• c) 3.517 kW

• d) 4.017 kW