Daikin Interview Questions, Process, and Tips

I have performed a variety of service work including troubleshooting, repairs, installations, and maintenance.

• Troubleshooting electrical systems

• Repairing HVAC units

• Installing new plumbing fixtures

• Performing routine maintenance on machinery

• Calibrating equipment for optimal performance

Refrigeration is the process of removing heat from a space to lower its temperature.

• Refrigerant absorbs heat from the space to be cooled

• The refrigerant then goes through a compressor to increase its pressure and temperature

• The hot refrigerant releases heat to the outside air through condenser coils

• The refrigerant then goes through an expansion valve to lower its pressure and temperature

• The cold refrigerant absorbs heat...read more

Computer Numerical Control

• Computer Numerical Control is a manufacturing process where pre-programmed computer software dictates the movement of factory tools and machinery.

• CNC machines are used in various industries such as automotive, aerospace, and electronics for precision machining.

• Examples of CNC machines include milling machines, lathes, and laser cutters.

There are two main types of gears: spur gears and helical gears.

• Spur gears have straight teeth and are the most common type of gear.

• Helical gears have angled teeth for smoother operation and less noise.

• Other types of gears include bevel gears, worm gears, rack and pinion gears, etc.

There are two main types of breaks: open (compound) and closed (simple) breaks.

• Open (compound) breaks: the bone breaks through the skin, increasing the risk of infection.

• Closed (simple) breaks: the bone breaks but does not penetrate the skin.

• Other types include greenstick fractures, comminuted fractures, and hairline fractures.

There are mainly two types of gears: spur gears and helical gears.

• Spur gears have straight teeth and are used for parallel shafts.

• Helical gears have angled teeth for smoother operation and are used for perpendicular shafts.

• Other types include bevel gears, worm gears, rack and pinion gears, etc.

Common technical issues in air conditioning products include refrigerant leaks, faulty compressors, and clogged filters.

• Refrigerant leaks can lead to decreased cooling efficiency and potential environmental harm.

• Faulty compressors may result in inadequate cooling or complete system failure.

• Clogged filters can restrict airflow and reduce overall system performance.

The VCRS cycle stands for Vapor Compression Refrigeration System, which is a common method used for cooling in various applications.

• VCRS cycle uses a refrigerant to absorb heat from a low temperature environment and release it in a high temperature environment.

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

• Examples of VCRS cycle applications include air conditioning s

Sub-cooling is the process of lowering the temperature of a liquid below its boiling point to increase its efficiency in heat transfer.

• Sub-cooling involves removing additional heat from a liquid to lower its temperature below its saturation point.

• This process increases the efficiency of heat transfer by ensuring the liquid remains in a liquid state rather than vaporizing.

• Sub-cooling is commonly used in refrigeration sy...read more

DG efficiency calculation involves determining the ratio of output power to input power.

• DG efficiency = (Output Power / Input Power) * 100%

• Output power can be measured in kW or HP

• Input power can be measured in kW or kVA

• Efficiency is usually expressed as a percentage

Total Predictive Maintenance is a proactive maintenance strategy that uses data analysis to predict when equipment failure is likely to occur.

• Involves monitoring equipment conditions in real-time

• Uses data analysis to predict potential failures

• Helps in scheduling maintenance before breakdowns occur

• Reduces downtime and maintenance costs

• Examples: vibration analysis, oil analysis, thermography