Snowman Logistics Interview Questions, Process, and Tips

Refrigeration cycle is a process of removing heat from a low-temperature reservoir and transferring it to a high-temperature reservoir.

• The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The refrigerant is compressed by the compressor and then condensed in the condenser, releasing heat.

• The high-pressure refrigerant then passes through the expansion valve, where it expands ...read more

Condenser and economizer are used in HVAC systems to increase efficiency and reduce energy consumption.

• Condenser is used to remove heat from the refrigerant and convert it from a gas to a liquid state.

• Economizer is used to pre-cool the air entering the HVAC system, reducing the load on the cooling system.

• Both components help to increase the efficiency of the HVAC system and reduce energy consumption.

• Examples of HVAC sy...read more

A relay is an electrically operated switch that uses an electromagnet to mechanically open or close a circuit.

• Relays are used to control high voltage or high current circuits with low voltage signals.

• They are commonly used in industrial automation, automotive applications, and household appliances.

• Relays can be classified into different types based on their construction and operating principles.

• Some common types of rel...read more

The expansion valve controls the flow of refrigerant in a cooling system.

• The expansion valve is a crucial component in refrigeration and air conditioning systems.

• It is responsible for regulating the flow of refrigerant from the high-pressure side to the low-pressure side of the system.

• The valve works by creating a pressure drop, which causes the refrigerant to expand and cool down.

• This cooled refrigerant then absorbs h...read more