Associate Engineer 3 Interview Questions and Answers

Scroll compressor uses two interleaved spiral scrolls to compress air or refrigerant.

• Scroll compressor has fewer moving parts and is more efficient than traditional compressors.

• The scrolls are made of a durable material like aluminum or steel.

• The scrolls rotate in opposite directions, creating pockets of air or refrigerant that are compressed as they move towards the center.

• Scroll compressors are commonly used in air conditioning and refrigeration systems.

• They are also used i...read more

Subcool and superheat are terms used in refrigeration and air conditioning to describe the state of refrigerant in a system.

• Subcool refers to the temperature of a liquid refrigerant that is below its boiling point.

• Superheat refers to the temperature of a vapor refrigerant that is above its boiling point.

• Subcooling and superheating are important for ensuring the proper functioning of a refrigeration or air conditioning system.

• Subcooling helps to prevent liquid refrigerant from...read more

The P-H chart is a graphical representation of the properties of refrigerants used in air conditioning systems.

• The chart shows the relationship between pressure, enthalpy, and temperature of the refrigerant.

• It helps in selecting the right refrigerant for a particular application.

• It also helps in troubleshooting air conditioning systems.

• The chart is used to determine the state of the refrigerant (saturated liquid, saturated vapor, superheated vapor, etc.)

• The chart is also used...read more