What is the primary purpose of a refrigeration system?

• To increase the temperature of a space

• To remove heat from a space

• To add moisture to the air

• To circulate air within a space

Which component in a refrigeration cycle is responsible for compressing the refrigerant?

• Condenser

• Evaporator

• Compressor

• Expansion valve

In the refrigeration cycle, what is the state of the refrigerant as it enters the evaporator?

• High-pressure liquid

• Low-pressure liquid

• High-pressure gas

• Low-pressure gas

Which principle explains the transfer of heat from a cooler area to a warmer area in a refrigeration system?

• Conduction

• Convection

• Radiation

• Heat pump principle

What is the function of the condenser in a refrigeration system?

• To absorb heat from the environment

• To compress the refrigerant

• To release heat to the environment

• To expand the refrigerant

What is the role of insulation in a refrigeration system?

• To increase the weight of the system

• To prevent heat loss or gain

• To enhance the appearance of the system

• To reduce noise

What safety practice is essential when handling refrigerants?

• Use of open flames

• Wearing protective gloves and goggles

• Storing refrigerants in direct sunlight

• Mixing different refrigerants

What is the primary function of the evaporator in a refrigeration system?

• To compress the refrigerant

• To absorb heat from the refrigerated space

• To release heat to the environment

• To circulate refrigerant

Which of the following is a basic concept of heat transfer relevant to refrigeration?

• Heat flows from cold to hot

• Heat flows from hot to cold

• Heat remains constant

• Heat is not involved in refrigeration

What is the role of the refrigerant in a refrigeration cycle?

• To provide insulation

• To transfer heat

• To generate electricity

• To act as a lubricant